Dailite Tank
Instruction manual

ＤＡＩＬＩＴＥ ＴＡＮＫ
ROTO-MOLDED POLYETHYLENE TANKS

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□For safe use

Warning■Danger of lack of oxygen
Do not enter the tank without permission from responsible party of managing the tank. There is a danger ofoxygen deficiency.

■Danger of falling
Do not get on the top surface of the tank without permission from responsible party of managing the tank. Thereis a danger of falling.

Caution■ Do not store in a sealed container
If stored in a sealed state, the gas and pressure inside the tank will increase or decrease due tochanges in temperature. This may cause the tank to deform.

■Fire is strictly prohibited
The tank is made of polyethylene, so keep high heat such as lamps, fire, steam, etc. away.
There is a danger that the tank may melt.

■Excessive pressurization and decompression are strictly prohibited
Open the air vent to prevent pressurization and depressurization of the tank. There is a danger of deformation ordamage to the tank.

■ Excessive air blowing from a tank truck is strictly prohibited
When air pumping of liquid from the tank truck is completed, stop the compressor immediately. If thecompressor continues to run without liquid, the tank may be deformed due to sudden pressure, resulting inliquid leakage or damage to the tank.

■Heating by electric heaters without liquid in the tank is strictly prohibited
Do not operate the electric heater without liquid in the tank in which the electric heater is installed. Since
heating by electric heaters without internal fluid overheats the heater parts of electric heater, there is a dangerof deformation and melting of the tank.

■Operation of the agitator without liquid in the tank is strictly prohibited
Do not operate the agitator without liquid in the tank in which the agitator is installed.
The shaft of the agitator move, damage the tank or cause the agitator to malfunction.

■ Due to buoyancy of the tank itself, the tank may be damaged.
To prevent buoyancy from applying to the tank, do not flood the inside of the pit where the tank is installed.
If the tank is lifted, there is a danger of damage.

■Lifting the tank with liquid in the tank is strictly prohibited
Lifting the tank with liquid in the tank may cause deformation and damage.
Be sure to empty the tank before moving.

■ Do not add too much liquid
The capacity indicated is a nominal value, and the actual capacity is from the bottom of the tank to the height ofthe straight body. If the tank is filled to a level higher than the height of the straight body, problems such asleakage may occur.

□ IndexThank you very much for purchasing the Dailite Tank.
Dailite Tank is a product with excellent corrosion resistance molded using polyethylene resin
as a material.
Please read the instruction manual carefully before use and use it correctly.
Please be sure to keep the instruction manual by yourself.

１ Unloading tanks ・・・・・・・・・・・・・・・・・・・・・・・・・・２～11
２ Installation of tanks ・・・・・・・・・・・・・・・・・・・・・・・・・・・12
３ Parts mounting ・・・・・・・・・・・・・・・・・・・・・・・・・・・・13
４ Piping and piping support・・・・・・・・・・・・・・・・・・・・・・・14
５ Precautions when using Z type and ZH type ・・・・・・・14
６ Assembling the liquid level gauge・・・・・・・・・・・・・15～17
How to assemble “on-site assembly type” float gauges, how to assemble “factory-assembled” float gauges.

７ Precautions for use ・・・・・・・・・・・・・・・・・・・・・・・・・18、19
８ Maintenance and inspection ・・・・・・・・・・・・・・・・・20、21
９ Warranty period ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・21

1

１ Unloading tanks［Inspection upon receipt］［Figure 1］■Make sure that there is no damage during transportation.
■The attached parts are packaged separately, so please make sure you have all of them.
Some tanks may be delivered with parts inside the tank.
■The curing sheet of the stainless reinforced frame should be removed promptly after thetank arrives. Over time, it may not be cleanly shaved.
■Repair paint is sent to painted products. Please use it when the paint peels off.

［Work after unloading the tank］■Tanks with reinforced
frames are equipped with
polyethylene anti-slippage
prevention using frametightening nuts and bolts sothat the tank and thereinforced frame do not
misalign duringtransportation.
To prevent slippage, remove
the nuts and bolts after
installing the tank (photo-1).
(Please also check thebottom right of P12.) ）[Photo-1]■The high specific gravity and concentrated
sulfuric acid tank (SA type) has metal fittings
at the shoulder of the tank to prevent thetank and the reinforced frame from shiftingout of position during transportation. Be sure
to remove the metal fittings after installing
the tank. If you use the tank without
removing it, the parts attached to theshoulder of the tank may peel off due to the
expansion and contraction of the tank, andthere is a danger of damage (photo-2).
(Please also check the bottom right of P12. ）Frame tightening nuts andbolts(P12)After installing the tank, remove the metal
fittings.

［Basic Tank Handling Procedure］[Photo-2]Please refer to the procedure manual on each page for handling tanks.
Note: This does not apply to tanks with handrails.
○ Depending on the vehicle arranged, the following loading way (horizontal lording, standing ) may differ.
■A/SP type 3,000L or less tanks, standing tank
■A/HA type, N type 4,000L, 5,000L, 6,000L tanks, standing tank
■A/HA type, N type 8,000L, 10,000L tanks, tank laid on its side
■N type 8,000L or more, ATN type 10,000L tanks, tank laid on its side
■A/HA type, N type 15,000L, 20,000L, 30,000L, 40,000L, 50,000L tanks, tank laid on its side (HA type and N type up to 20,000L)■SP type 4,000L, 5,000L, 6,000L, SL type 4,000L tanks, standing tank
■SP type 8,000L, 10,000L, 15,000L, 20,000L, 30,000L, SL type 6,000L, 10,000L tanks, tank laid on its side
■AT type 4,000L or less, ATN type 6,000L or less tanks, standing tank
■AT type 5,000L, 6,000L , 10,000L, ATN type 10,000L tanks, tank laid on its side
■AT type 15,000L, 20,000L, 30,000L tanks, tank laid on its side

［About work with truck crane］
Work with truck crane is only the work of lowering the tank next to the truck （temporary installation）, and does
not perform start-up or installation work. For installation work, please arrange a rough terrain crane, etc.
Note: Type A tanks of 30,000L or larger and AT type tanks of 20,000L or larger are not unloaded with truck cranes.
Please arrange and perform unloading, installation work by arranging a rough terrain crane, etc.

2［Tank dimensions and weight］

Dimensional tolerance±1.5%

SP type
Capacity

300L
500L
800L
1,000L1,500L2,000L
3,000L
4,000L5,000L
6,000L
8,000L
10,000L
15,000L
20,000L
30,000L

Outer diameter（㎜）

SL type

Height（㎜）

600
750
900
1,060
1,275
1,410
1,620
1,800
1,800
2,000
2,135
2,330
2,600
2,820
2,900

1,325
1,485
1,580
1,495
1,740
1,933
2,100
2,117
2,398
2,521
2,863
2,936
3,630
3,990
5,430

Weight（㎏）

20
27
36
41
60
70
85
185
195
225
255
325
610
660
1,100

Capacity

4,000L
6,000L
10,000L

200L
300L
500L
3,000L
4,000L5,000L
6,000L
8,000L
10,000L
15,000L
20,000L
30,000L
40,000L
50,000L

Outer diameter（㎜）

Height（㎜）

660
752
904
1,620
1,800
1,800
2,000
2,145
2,335
2,585
2,850
2,900
2,970
3,315

780
910
1,030
1,910
2,117
2,398
2,521
2,926
3,055
3,610
3,975
5,430
6,675
6,600

Weight（㎏）

18
30
41
140
260
295
340
440
520
835
985
1,790
2,240
2,755

Capacity

1,000L1,500L2,000L
3,000L
4,000L5,000L
6,000L
8,000L
10,000L
15,000L
20,000L
30,000L
40,000L
50,000L

AT type
Capacity

100L
200L
300L
500L
1,000L2,000L
3,000L
4,000L5,000L
6,000L
10,000L
15,000L
20,000L
30,000L

Outer diameter
（㎜）

620
620
800
1,005
1,200
1,535
1,600
1,800
1,800
2,005
2,325
2,600
2,840
3,100

Height（㎜）

1,590
1,695
2,000

2,655
3,250
3,845

Weight（㎏）

155
260
385

SA typeA typeCapacity

Outer diameter（㎜）

Outer diameter（㎜）

Height（㎜）

1,060
1,275
1,410
1,620
1,800
1,800
2,000
2,145
2,335
2,585
2,850
2,900
2,970
3,315

1,494
1,740
1,933
2,100
2,117
2,398
2,521
2,926
3,055
3,610
3,975
5,430
6,675
6,600

Weight（㎏）

126
160
190
225
315
350
400
575
675
960
1,140
1,895
2,645
3,150

ATN type

Height（㎜）

765
1,150
1,305
1,365
1,805
2,110
2,540
2,660
2,950
2,980
3,460
4,080
4,480
5,765

Weight（㎏）

12
15
75
93
125
180
228
440
480
540
765
1,160
1,425
2,295

Capacity

500L
1,000L2,000L
3,000L
4,000L5,000L
6,000L
10,000L

Outer diameter
（㎜）

1,005
1,200
1,535
1,600
1,800
1,800
2,005
2,325

Height（㎜）

1,270
1,515
1,775
2,145
2,375
2,655
2,680
3,155

Weight（㎏）

89
119
172
219
410
445
495
735

※１ The weight of the tank fluctuates depending on the installation of
optional parts.
※２ For the weight of the HA type, refer to the weight of the SA type.
※３ The dimensions, weight, etc. of the tanks described in this
instruction manual are subject to change without prior notice in order toimprove performance.

3

Tank handling procedure[Caution]
１）Please prepare a forklift or a rough terrain crane.
２）Please be sure that those who have completed forklift skills and slinging skills will perform the work.
３）Please perform the slinging work safely with reference to tank dimensions and weight and considering the safety factor.
Select a lifting tool with a working load that matches the weight of the tank to be unloaded.
４）The lifting devices used include ① shackles, ② wires, ③ sling belts, ④ pulleys or chain balancers, etc.
５）If there is a risk that the lifting device may rub against the tank, take measures to prevent this.
６）We recommend using a balance scale when unloading horizontally stacked tanks.
７）During work, never get under the tank. Please check your surroundings before proceeding.
８）Be careful not to damage the tank nozzle (top, sides, and bottom).
９）ー
１０）Do not use the anchor holes or ladder attachment holes when unloading the cargo as this may cause damage.
１１） The bottom of the tank may not be flat as it is a molded product, but this does not affect its use.
Main Hanging hook

Sub hanging hook

Balance steel

Wires

Sling belts

ShacklesShacklesMain Hanging Hook

Main Hanging Hook
Main Hanging Hook
Sub hanging hook
Sub hanging
hook
Sub hanging hookTopsurface

BottomTanks with handrails (SP type, SL type)[Warning][Figure 2]〇 When unloading, standing up, and moving tanks withhandrails,
Use the shackle mounting holes at the bottom of the handrail.
Warning ) Do not Hang wires or ropes on the handrail itself, as
doing so may cause damage. Also, protect the handrails frombeing scratched by wires or ropes.
Note ) The shackle mounting holes shown in the figure on theright are attached only to handrails designed by our company
for SP and SL type.
The shackle mounting holes

4A/SP type 3,000L or less tanks, standing tank
■A and SP type tank/ Forklift work
Unloading operations

Be careful of the nozzle and load the tank onto a forklift and unload it.
Please make sure that the forklift's tines are longer than the outer diameter of the tank.

■SP type tank/ Rough terrain crane work
Unloading operations

Hang a wire on the hanging brackets (2 places) on the top plate, lift it slightly to makesure it is parallel, and then unload the load.
Hanging at 2 points of wire

A/HA type, N type 4,000L, 5,000L, 6,000L tanks, standing tank
■Forklift work
Unloading operations

Be careful of the nozzle and load the tank onto a forklift and unload it.
Please make sure that the forklift's tines are longer than the outer diameter of the tank.

■Rough terrain crane work
Unloading operations

Attach a wire to the top two of the frame tightening nuts and bolts, lift it slightly tomake sure it is parallel, and then unload the load.
Hanging at 2 points of wire

5

A/HA type, N type 8,000L, 10,000L tanks, tank laid on its side
■Rough terrain crane work
Example) Main hanging hook; Attach shackles to the first and second topmost nuts and bolts of the frame tightening nuts andbolts, respectively, and attach the tips of the wires attached to the pulley to both shackles. After that, connect the main
hanging hook and pulley with the wire.
Example) Sub hanging hook; Attach the shackles to the second and third bottom nuts and bolts, respectively, and attach thetips of the wires attached to the pulley to both shackles. After that, connect the sub hanging hook and pulley with the wire.

Unloading operations

Standing up operations
Main hanging
hook①Attach shackles to the two nuts and bolts, attach a wire, and connect to thecrawler crane.
②Lift it slightly to make sure it is level, then remove the tank from the truck
bed and place it temporarily.

Sub hanging
hook①Please replace the main hook and sub hook.
②Check the safety of the lifting equipment.

Moving tank operations
Main hanging
hookSub
hanginghook③While checking for safety, lift both the main hook and the sub hook little bylittle.
④Gradually reel in the main hook and adjust the sub-hook while standing thetank upright.

Hanging at 2
points of wire

①Once it is standing, attach a wire to the two nuts and bolts on the top
row, lift it up slightly to make sure they are parallel before moving it.

N type 8,000L or more, ATN type 10,000L or more tanks, tank laid on its side
When placing a tank with an open top horizontally on a truck bed, the open part may deform due to its own
weight.
Therefore, the open part is shipped with an anti-deformation steel angles as shown in the photo below.
Remove the anti-deformation steel angles from the tank after installation.
It is not attached to the tank with vertical agitator mount.

Please remove the anti-deformation steel angles
from the tank after installation.

[Photo-3]

6

A/HA type, N type 15,000L, 20,000L, 30,000L, 40,000L, 50,000L tanks, tank laid on
its side■Rough terrain crane work
Example) Main hanging hook; Attach shackles to the first and second topmost nuts and bolts of the frame tightening nuts andbolts, respectively, and attach the tips of the wires attached to the pulley to both shackles. After that, connect the main
hanging hook and pulley with the wire.
Example) Sub hanging hook; Attach the shackles to the second and third bottom nuts and bolts, respectively, and attach thetips of the wires attached to the pulley to both shackles. After that, connect the sub hanging hook and pulley with the wire.

Unloading operations

Standing up operations
Main hanging
hook①Attach shackles to the two nuts and bolts, attach a wire, and connect to thecrawler crane.
②Lift it slightly to make sure it is level, then remove the tank from the truck
bed and place it temporarily.

Main hanging
hook

Sub hanging
hook①Please replace the main hook and sub hook.
②Check the safety of the lifting equipment.

Subhanging
hook

Using pulleys , keep thewires can be balanced.
③While checking for safety, lift both the main hook and the sub hook little bylittle.
④Gradually reel in the main hook and adjust the sub-hook while standing thetank upright.

Moving tank operations

Hanging at 3 points ofwire①Once it is standing, attach a wire to the three nuts and bolts on the top row,
lift it up slightly to make sure they are parallel before moving it.

7

SP type 4,000L, 5,000L, 6,000L, SL type 4,000L tanks, standing tank■forklift work
Be careful of the nozzle and load the tank onto a forklift and unload it.
Please make sure that the forklift's tines are longer than the outer diameter of the tank.

Unloading operations■ Rough terrain crane work
Unloading operations

Hang a wire on the hanging brackets (2 places) on the top plate, lift it slightly to makesure it is parallel, and then unload the load.
Hanging at 2 points of wire

SP type 8,000L, 10,000L, 15,000L, 20,000L, 30,000L, SL type 6,000L, 10,000L tanks, tank laid on
its side■Rough terrain crane work
Unloadingoperations

Hanging at 2 points ofsling belts

Standing up operations

Top
surface①Wrap the sling belt around two positions about 1/3 of the top
and bottom of the tank body, after checking the looseness, lift itin parallel.
② Unload the tank from the truck bed and temporarily place it.

Bottom① After temporary placement, attach the wire to the main hanging
hook and place it in two places of metal fitting on the top surface.
Please hang the wire. Attach the sling belt wrapped around thebottom of the side to the sub hanging hook.

Moving tank operations
Hanging at 4 pointsof wire②After lifting off the ground, gradually pull up the main hanging
hook, stand up the tank while lowering the sub hanging hook.

①When the tank has finished standing, hang the wire in metal fittings“four places “on the top surface of the tank .
After confirming the parallel lifting, move it.

8AT-type 4,000L or less, ATN type 6,000L or less tanks, standing tank
■Forklift work
Unloading operations

Forklift claws should be longer than the width of the steel trestle.

■Rough terrain crane work
Unloading operations

Wrap two sling belts around the steel trestle and hang them on the hanging hook.
After confirming the parallel lifting, move it. Please put protective covering before
working to prevent damage to the tank and the steel trestle.

Before lifting

During lifting9AT type 5,000L, 6,000L, 10,000L、 ATN type 10,000L tanks, tank laid on its side
■Rough terrain crane work
Example) Main hanging hook; Attach shackles to the first and second topmost nuts and bolts of the frame tightening nuts andbolts, respectively, and attach the tips of the wires attached to the pulley to both shackles. After that, connect the main
hanging hook and pulley with the wire.
* If the frame tightening nuts and bolts are not on the top surface as shown in the figure below, use the hanging angle added to
the reinforced frame.

Unloading operations

Standing up operations
Main hanging
hook①Attach a shackle to one nut and bolt, hang a wire, and connect to the crawler
crane.
②Wrap the sling belt around the stand and hang it on the hook.
③Lift it slightly to make sure it is level, then remove the tank from the truck bed
and place it temporarily.

Sub hanging
hook①Please replace the main hook and sub hook.
Check the safety of the lifting equipment.

move operations
Main hanging
hook②While checking for safety, lift both the main hook and the sub
hook little by little.
③Gradually reel in the main hook and adjust the sub-hook while
standing the tank upright.

Hanging at 2
points of wire

①Once it is standing, attach a wire to the two nuts and bolts on the top
row, lift it up slightly to make sure they are parallel before moving it.

10

AT type 15,000L, 20,000L, 30,000L tanks, tank laid on its side
■Rough terrain crane work
Example) Main hanging hook; Attach shackles to the first and second topmost nuts and bolts of the frame tightening nuts andbolts, respectively, and attach the tips of the wires attached to the pulley to both shackles. After that, connect the main
hanging hook and pulley with the wire.
* If the frame tightening nuts and bolts are not on the top surface as shown in the figure below, use the hanging angle added to
the reinforced frame.

Unloading operations

Standing up operations
Sub hanging
hook

Main hanging
hook①Attach a shackle to one nut and bolt, hang a wire, and connect to the crawler
crane.
②Wrap the sling belt around the stand and hang it on the hook.
③Lift it slightly to make sure it is level, then remove the tank from the truck bed
and place it temporarily.

①Please replace the main hook and sub hook.
Check the safety of the lifting equipment.

move operations
Main hanging
hook②While checking for safety, lift both the main hook and the sub
hook little by little.
③Gradually reel in the main hook and adjust the sub-hook while
standing the tank upright.

Hanging at 3
points of wire

①Once it is standing, attach a wire to the three nuts and bolts on the
top row, lift it up slightly to make sure they are parallel before movingit.

11

2 Installation of tanks[Precautions for tank installation 1]■ Store the tank upright on a flat surface with noprotrusions. If the tank is left horizontally, the tank may
roll due to gusts of wind, and damage the tank and its
mounting parts [Figure 3].
■When moving the tank, do not drop it or hit it against
sharp protrusions. In particular, do not damage mounting
parts, fusion nozzles, anchor seats, etc.
[Figure 3]■Be sure to strike anchor bolts after installing the tank.
Since the tank body is made of polyethylene, it has adegree of expansion and contraction of about±1.5%, andif you strike the anchor bolts before installation, it will notmatch the anchor hole of the tank [Figure 6].
■Tank’s ladders without reinforced frames are designed foranchoring. Be sure to strike the anchor bolts to fix them [Photo
4].
■When anchoring an SP-type tank “4,000L~20,000L”, attach
the flat washer to the anchor [Photo 5].

[Photo-4][Precautions for tank installation 2]■When installing the tank, make sure that the nozzles
are positioned in the center of the nozzle notch hole of
the reinforced frame [Figure 4].
[Figure 4]■The mounting foundation of the tank must be fully
supported on a horizontal and smooth surface [Fig. 5].
[Figure 5][Photo-5]■The tanks with the reinforced frame are shipped with theframe tightening nuts and bolts tightened so that thereinforced frame do not move due to vibrations duringtransportation.
■After starting to use, the tank expands and contracts due tothe outside temperature, hydrostatic pressure of the liquid
inside, etc.
■Before filling with water and setting anchors, In order torelieve the stress tanks with the reinforced frame, loosen theframe tightening nuts and bolts until they does not come off
after installation [Figure 7]. Reference values are shown in thetable below.
Especially when installing in a place exported to direct sunlight,
the tank tends to expand and contract, so don't forget toloosen the frame fastening tightening nuts and bolts. Do not
use an impact wrench when loosening. There is a risk that thenuts and bolts will be seized and will not come off.

[Table-2]
Tank capacity （L）
Number ofdivisions of thereinforced frame
Dimensions A in
Figure below（Inter-angle）（㎜）2,000L or less

3,000Ｌ～10,000Ｌ 15,000Ｌ～50,000Ｌ

1

2

3

50 or more

50 or more

50 or more

■ The dimensional tolerance is ±1.5%, so it is a reference
value only.

[Figure 6][Figure 7]
Do not fit

Ａ■ Please carry out the [Post-unloading work] on P2.
12

3 Parts mounting[Nozzle]■ The nozzle is heat fusion, a polyethylene flange, which isthe same material as the tank. Its strength, chemical
resistance are equivalent to tanks [Photo 6][Photo-6]■ When installing the fitting by yourself, open a hole larger
than the outer diameter of the fitting in the tank with a holesaw, etc., and remove the burrs from the hole before
installing.
Our standard polyethylene fitting mounting holediameters are as shown in the table below.[table-3][Table-3]
Fitting Size
Hole diameter（㎜）Fitting Size
Hole diameter（㎜）■The flange is equivalent to JIS standard 10K.
■Select a material suitable for the liquid content of thegaskets used for piping. In addition, be sure to use full-facegaskets for flange piping, and do not use inner-face gaskets.

■Precautions for handling nozzles● Do not apply any load such as step on the fusion nozzle
or hang a rope.
● Do not scratch the flange surface.
● When using a large diameter nozzle (125A or more),
use a backup ring on the outer surface of the flange.
● Tighten the nuts and bolts of the flange evenly. If you
are concerned about overtightening, use our optional
stainless steel backup ring [Photo 7].
[Photo-7]

Backup Ring

15Ａ
33
50Ａ
78

20Ａ
37
65Ａ
97

25Ａ
46
80Ａ
110

40Ａ
65
100Ａ
135

[Installation of short pipes with flanges]■If a short pipe with flange attached to the fitting is delivered,check that there is no looseness before use. Flanged The shortpipes with flanges may loosen during transportation.
■Make sure that there is no defects on the tip of the fitting
and no foreign matters on the inner thread.
The fitting and the short pipes with flanges are sealed with gaskets.

■When attaching a short pipe with flange to the fitting, screw it inat the correct angle and screw it firmly until the gasket of the shortpipe with flange touches the tip of the fitting [Figure 9].
If it is screwed in at an incorrect angle, the thread may be damaged,
the gasket may not function properly, and liquid in the tank may
leak. Also, make sure that the gasket is not twisted or sticks
out[Figure 10].

[Figure 9]

gasketFitting gasket[Fitting]■ Make sure the lock nut on the fitting is not loose before
use. The lock nut may loosen during transportation. If it isloose, tighten the lock nut to the left by hand, and thentighten it little by little with a special tool or pipe wrench
for about 1/2~3/4 turns. If the lock nut is overtightened,
there is a risk of screw skipping [Figure 8].

[Figure 10]■ Adjust the center distribution of the bolt hole of the shortpipe with flange after tightening it. Do not loosen and adjust.

[Figure 8]

Close

Loosen■ Stainless steel fittings and short pipes with flanges are
thread seals, so please wrap the sealing tape around thethreads of the short pipes with flanges before screwing it in.

13

4 Piping and piping support
During piping work, do not apply excessive stress to thefitting joints or heat fusion nozzles.
■When opening and closing the valve, fix it so that
excessive stress is not applied to the nozzle. Also, connect
and fix the valve horizontally [Figure 11].

[Figure 11]■Adjust the piping support with pipe bands loosely.
When the polyethylene tank is filled with liquid, it bulges
slightly, and stress is applied to the piping. If the piping support
is too tightly supported, the stress can apply to the fitting
connection or heat fusion nozzle. There is a risk of leakage ordamage.
■If the top surface of the tank is under load, take sufficient
support.
Polyethylene tanks expand and contract due to changes in
outside temperature, so install expansion joints on the piping.
■When connecting metal pipes or two tanks in a straight line,
connect a flexible joint in the middle of the pipe [Figure 13].

[Figure 13]

Install theflexible joint■Make sure that the flange connection does not misalignthe center of the shaft. If you forcibly adjust it, there is arisk of leakage or damage.
■Be sure to take a support for the valve and connect a
flexible joint [Fig. 12].
[Figure 12]

5 Precautions when using Z type and ZH type
■Fluid temperature ０～40℃［Tank dimensions and weight］
Dimensional tolerance±1.5%

Polyethylene body -20～40℃, PVC 0～40℃■Specific gravity of liquid Z Type １．２g/㎝３ or less
ZH Type １．６９g/㎝３ or less
■The mounting foundation of the tank must be fully
supported on a horizontal and smooth surface [Fig. 5].
■Please refer to pages 13 and 14 for precautions
regarding part installation, piping, and piping supports.
■There is a hole at the top of the liquid level gauge pipeso that the liquid level raises. It is not sealed. If you wish to
store hydrochloric acid, please contact us before ordering.
■Do not fill the gauge above the mark, as this may cause
leakage from the top of the gauge pipe.

Capacity
50L
100L
200L
300L
500L

Capacity
50L
100L
200L
300L
500L

Z typeOuter diameter
Height（㎜）
（㎜）
390
615
470
735
580
895
720
950
880
1,065
ZH type
Outer diameter
Height（㎜）
（㎜）
390
615
470
735
580
895
720
950
880
1,065

Weight（㎏）
7.6
12.5
26.0
43.0
58.5

Weight（㎏）
7.6
12.5
29.0
42.5
51.5

■If you need an anchor mounting plate, please use our
optional anchor mounting plate.
14

6 Assembling a direct reading Liquid Level Gauge
1) Components parts

2) Assembly procedure[Table-4] Components [Figure 14]

№
①
②
③
④
⑤
⑥
⑦
⑧
⑨
⑩
⑪

name

Material

quantity

Gauge Valve

PVC

1 （3）

Gauge Pipe

PVC
Aluminum

1 （2）
1 （2）
2 （4）
1set
1 （3）
4 （12）
1 （2）
2 （4）
3 （5）
2 （4）

Protective frame (with scale)
Gauge Pipe Fixing Ring
Connecting tube elbow
GasketNuts and Bolts
floating ballstopper
Gland Nut
Protection pipe support

Note)The tank's dimensional tolerance is ±1.5%, so thescale is only a guide.

Stainless
PVC
Rubber
PVC
PP
PE
PVC
steel plating

1. Set the ⑥ gasket, ➀ gauge valve on the lower flange of thetank, and attach them with ⑦ nuts and bolts.
2. As shown in [Fig. 15], cut the gauge pipe to the height of thetank body plus 50mm.
3. As shown in [Fig. 16], remove the ⑩ gland nut and O-ringfrom the ➀ gauge valve and ⑤ connecting pipe elbow.
4. Mount the ③ protective frame.
See ■ Mounting the protective frame below.
5. Thread ② gauge pipe through ④ fixing ring attached to the③ protective frame, and insert the ② gauge pipe into ➀ gauge
valve and ⑤ connecting tube elbow.
6. Install the gland nut and O-ring removed by No3.
7. Install the ⑩ gland nut on the tank.
[Figure 15][Figure 16]

The numbers in parentheses indicate the number of parts of 30,000L,
40,000L, 50,000L[Figure 14]

O-ringBackup ring

Backup ringO-ring■Mounting of protective frame
Mount the ③ protective frame to the support mounted to thetank with nuts and bolts [Figure 17].
[Figure 17]

Note: Do not fully open the gauge valve
immediately, but open it gradually.

15

How to assemble a “factory-assembled”
float type liquid level gauge

Note 3) If the ③ float still does not fall off, insert a long rod
such as a screwdriver into the pipe at the tip of the ⑦ 100A cap
and poke the ③ float to drop it.

1) Components parts[Table-5] Components [Figure 18]
№
①
②
③
④
⑤

name
pulley100A socket
Float and string
Float Rail “scale”
Scale pointerMaterial
PVC
PE
PVC、PE
Steel
Steelquantity
1
1
1
1
1

⑥

Float rail scale mounting parts

Steel

1

⑦

100A Cap、O-ring

PE、rubber

1⑧

Pulley mounting parts

PVC

1

⑨

Pulley mounting nuts and bolts

Steel

2

* The small tanks does not have ⑧ pulley mounting parts.
[Figure 18]⑦②[Photo-9] (for medium-sized tanks)
Drop the float

Loosen the bolts and tilt the pulleybody[Photo-10] (for small tanks)

①
⑨
⑧
⑤

⑥
③

Drop the float

Loosen the bolt and tilt the pulley body④

2) Assembly procedure
1. Remove the nut and bolt fixing the ⑤ scale pointer.
2. Remove the tape and untie the string wrapped aroundthe ① pulley slowly [Photo 8].
[Photo-8]* If it is difficult to work, remove the pulley andwork.

3. When the ③ float falls, return the ① pulley to its original
position and tighten the loosened nuts and bolts [Photo-11].
4. Check the position of the ④ float rail “scale“ and ⑤ scalepointer.
* If the reference point (0 points) does not match, untie thestring of the ④ scale pointer and align the reference point.
* In the case of fine tuning, the ⑥ rail mounting parts has aslotted hole, so it can be adjusted there as well.

[Photo-11]

Remove the tape and untie the string.
Note 1) The ③ float will fall, so please hold the string justin case.
Note 2) If the ③ float does not fall down, loosen thepulley mounting nuts and bolts and tilt the ① pulley inorder to drop the ③ float [Photos 9 and 10].

Note: The water depth at which the scale pointeremerges is 60 mm.
* For liquids with a specific gravity of 1.0 g/cm3

16

How to assemble an “on-site assembly type”
float type liquid level gauge[Figure 21]

1) Components parts[Table-6] Components [Figure 19]
№
①
②
③
④
⑤
⑥

name
Pulley with cover
Mounting base for thetank
Float and string
Float Rail with scale
Scale pointerFloat rail with scalemounting parts

Material
PVC

quantity
1

PE

1

PVC、PE
Steel
Steel

1
1
1

Steel

2（3）

⑥ 3 pieces are attached to the tank of 15000L or more.
[Figure 19]

2. Mount the pulley with cover according to the following
procedure.
（1） Remove the cover of pulley [Photo 12].
（2） Set the pulley horizontally on the ② mounting base forthe tank and tighten the nuts and bolts while confirming thevertical of the ➃ float rail with scale [Figure 22].

[Photo-12] Pulley with cover removed* The photo is for 3,000L[Figure 22]
Insert the pulley in until thepipe hits the PVC plate of thepulley.

2) How to tie a ③ float
Example of how to tie: bowline knot
[Figure 20]

3) Assembly procedure
1. Mount the ④ float rail with scale at the angle of thereinforced frame and temporarily mount the ⑥ float railwith scale mounting parts with nuts and bolts [Figure 21].

3. Fully tighten the nuts and bolts on the ⑥ float rail with scale
mounting parts.
4. Mount the ③ float, string, and the ⑤ scale pointer according
to the following procedure.
（1） Pass the string of the float over the pulley.
（2） While adjusting the length so that the indication of the ⑤scale pointer points to the 0 point on the scale attach the ⑤scale pointer and ③ float to the end of the string [Figure 20].

Note: The water depth at which the scale pointeremerges is 60 mm.
* For liquids with a specific gravity of 1.0 g/cm3(3) Lower the ⑤ scale pointer so that appears on the surfaceof the ④ float rail with scale.
(4) Attach the pulley cover.

17

7 Precautions for use~Before use~
Check the looseness of screws, nuts and bolts,
and tighten them.
■Check that there is no looseness in all screws and allnuts and bolts, including gland nuts of the level gage, andnuts and bolts of the flange etc, other than the frametightening nuts and bolts of the reinforced frame. If there
is any looseness, please retighten it .

washing■Before using the tank, wash the inside of the tankthoroughly with water. Especially when it is used as a foodrelated storage tank, please wash it more thoroughly.

Water Filling Test
■Before use, Be sure to perform a water filling test to
confirm that there is no liquid leakage from theconnection.

Excessive pressurization or decompression isstrictly prohibited■Keep the air vent open so that the tank is not pressurized or
decompressed [Figure 23].
The standard design pressure of the tank is atmospheric pressure.
Reference values ​are pressurization +0.98kPa and depressurization-0.49kPa.
The standard specification is not airtight. Airtight specifications areavailable separately.
■Pressurization in a sealed state may cause the tank to swell andbe damaged. In addition, depressurization may cause the top
surface to collapse, the nozzle to break, or the body to dent, etc.
■When pouring liquid from the tank truck into the tank, be sure
to open the air vent and do not seal the tank with a water seal.
Install a gas scrubber to prevent chlorine gas and other toxic
gases from being released into the atmosphere.
[Figure 23]

Pouring liquid■ The water used for the water filling test should becompletely removed and wiped off before use.
Some chemicals such as sulfuric acid may react withresidual water and generate heat, which may melt or
deform the tank.

~Basics of Dailite Tank~

Draining
liquidFluid temperature
Model

ＳＰ type
ＳＬ typeＡ type/ ＨＡ type
Ｎ typeＳＡ type

ＡＴ type
ＡＴＮ type

Fluid
temperature（℃）－20～40℃－20～60℃

－20
～40℃

０～40℃

Note １）PVC is not included in the standard parts of the SP and SL
types (tanks without reinforcing frames).
Note ２）PVC is not included in the standard parts for A type/HA
type and N type (tank with reinforcing frame).
Note ３） A reinforcing frame is optional for A type and N typemodels up to 3,000L, and the specification without a reinforcing
frame is -20 to 40°C.
Note ４） For the AT and ATN types, the polyethylene body has atemperature range of -20 to 40°C, and the PVC has atemperature range of 0 to 40°C.

Fire is strictly prohibited■The tank is made of polyethylene, so keep high heat such as
lamps, fire, steam, etc. away. There is a danger that the tankshall melt.
■Remove the reinforced frame from the tank body before
welding to the reinforced frame.

~Before using~
Danger of lack of oxygen■Do not enter the tank without permission. There is a danger ofoxygen deficiency.

Danger of falling■The above maximum operating temperature is based ona content liquid with a liquid specific gravity of 1.3 g/cm3
or less, but it does not take into consideration the effect ofchemicals “chemical resistance” at high temperatures inpolyethylene.
For the availability of use, check the chemical resistanceof polyethylene (not applicable to industrial containers).

■Do not get on the top of the tank without permission. There is adanger of falling.
If the tank contains chemicals in the tank, do not get on the top
surface of the tank.
Do not get on the tanks of 3,000L or less, because they are notdesigned for people to get on the top surface. There is a risk of
deformation of the top surface and damage to the nozzle.

18

■Inspect gas scrubber regularly. If depressurization
occurs due to improper maintenance, the tank may be
deformed or damaged.
We handle “seal pots“ used to remove hydrogenchloride. Please contact us if necessary.

[Figure 25]

Example of piping diagram for empty heating
prevention

Electric heater mounting port

Blowing from a tank truck isstrictly prohibited■Stop the compressor as soon as the air pressure feedingof the liquid from the tank truck is completed [Figure 24].
If the compressor continues to blow dry, the tank may
be deformed due to sudden pressure, resulting in liquidleakage and tank damage.
■When the remaining liquid in the tank truck decreases,
air begins to mix and the hose of the tank truck vibrates. In
that case, immediately close the main valve of the tanktruck, stop the compressor, and then gradually open themain valve to send the remaining liquid with the residualpressure.

Liquid outlet

Thermostat
Heat-generating part

BottomDrain[Specification]●Liquid to be kept warm Caustic soda 48%●Keep warm temperature 20℃ to 35℃●The thermostat is fixed at the upper limit of 40℃[Figure 24]

Precautions for using the agitator■When installing the agitator, do not damage the inner surfaceof the tank when working inside the tank.

Empty heating of electric heaters isstrictly prohibited■Do not operate the electric heater without liquid in thetank to which the electric heater is installed.
Empty heating operation overheats the electric heater,which may cause the tank to deform or melt.
■The thermostat of the electric heater is set to detect
when the heat-generating part is in the liquid andautomatically turn off the heater at the upper temperature
limit “40℃”.
When operating the electric heater, keep the liquid levelso that the heat-generating part is always submerged in theliquid.
In order to the liquid level reliably , install the liquid outlet
230 mm higher than the heat-generating part as shown in[Fig. 25].

■Do not operate the agitator without liquid in the tank in which
the agitator is installed. Doing so may cause The shaft of theagitator may become misaligned, which may damage the tank orcause the agitator to malfunction.

Please contact us if you want to change theterms of use.
■If you change the usage conditions “chemical type,concentration, liquid specific gravity, fluid temperature“ at thetime of tank purchase later, you may not be able to use the tank,so please contact us.

■ Do not set the temperature of the electric heater above
40℃.

19

8 Maintenance and inspection
Refer to the following inspection guidelines for tanks, mounting parts, and piping, and perform periodic
inspections. If any anomalies are found, stop using it immediately and contact us as soon as possible.
* For tanks that have been used for a long time, to evaluate UV degradation, please use our degradation diagnosis
service.

[Precautions during maintenance and inspection work]
1. Prevention of oxygen deficiency and gas poisoning
accidents

2. Prevention of falls accidents and injuries

The inside of the tank is a dangerous area for oxygen
deficient and gas poisoning. Be very careful when entering
the tank.
(1) Thoroughly wash and dry the inside of the tank.
(2) Put a fan into the tank and ventilate it.
(3) Check with an oxygen concentration meter that theoxygen concentration is 18% or more and the hydrogensulfide concentration is 10ppm or less.
(4) Be sure to place a watchman.
(5) If (1)～(3) above is not possible, use an airline
respirator or hose mask . Also, wear goggles.

Be very careful when going up and down the tank safely.
(1) Do not climb if the top surface of the tank showsdeterioration due to the influence of chemicals, gases, ultraviolet
rays, etc. Put up scaffolding around the tank.
(2) Check the safety of the ladder before climbing.
①Make sure the ladder firmly fixed without rattling.
② The ladder must not be damaged corrosion, etc.
(3) Please wear a helmet, rubber gloves, safety shoes, etc. When
working at heights of 2 meters or more, wear a fall arrest
equipment.
(4) Be sure to close the manholes, inspection ports, etc. after thework is completed.
(5) If any anomalies are found in the lifting equipment, in the lidof manhole, inspection port, etc. replace it immediately.
(6) When working at a high place, be sure to place a watchman.

Failure to do so may result in personal injury
such as lack of oxygen and gas poisoning.

Failure to do so may result in a fall or injury.

* When performing maintenance work, inspection work, or cleaning work on the tanks, follow thelaws and regulations of each country, pay due attention, and do it safely.

20

[Guidelines for Conducting Inspection][Table 7] Daily Inspection
Location
to inspect

Inspection items
Are there any cracks on the surface?

tank
Unusual deformation（Is there any
bulge, any dents on the surface?）

PipingIs there any liquid leakage from thenozzles or connection parts?
Are there any cracks in the nozzles(fittings, flanges, valves)?

Probable cause of the
problem
Product life

Specific examples of causes
UV degradation due to sunlight, etc.

Troubleshooting
Replacement. Please use theDeterioration Diagnosis Service.
Replacement. chemical evaluation.
Replace depending on the degreeof deformation

environmental stress crack
Deterioration due to chemicals
Unusual temperature rise of the
Exothermic due to chemical reactions
liquid in the tank
Overtightening of nuts and bolts on the
Rise in outside temperature
Adjusting the nuts and bolts
reinforced frame
Contamination of organic solvents and Replace depending on the degree of
Swelling due to chemicals
oils
deformation, chemical evaluation
Pressurization and
Clogging of air ventAir vent inspection
depressurization of tanks
Chemical deterioration and deformation
The gasket life
Gasket replacementof gaskets
UV degradation due to sunlight, etc.
The nozzle and the part life
Parts replacement
Deterioration due to chemicals
Deformation of flange
Overtightening of nuts and bolts
Adjusting the nuts and bolts[Table-8] Monthly Inspection
Location
to inspecttank

PipingInspection items

Probable cause of the
problemTroubleshooting

Check the inside of the tank for cracks.
Product life

Deterioration due to chemicals

Replacement.

Check if the gloss inside surface of the
Product lifetank is cloudy.

Deterioration due to chemicals

Replace depending on the degree

Is there any surface damage?

Damage caused by external
forcesScratches caused by cutting tools, etc. Replace depending on the degree

Is there any white discoloration?

Product life

UV degradation due to sunlight, etc.

Replace depending on the degree

Is there rust or corrosion?

Rust and corrosion due to theenvironment

Salt damage, rainwater, age
deterioration

Repaint or replace after corrosion
removal－Replenish the nuts and bolts and fix
it again.

reinforced
frames Are there any missing nuts and bolts
to hold the reinforced frames, ladders,corrosionand handrails?
valveSpecific examples of causes

Is the movement of the hand wheelsmooth?

Deterioration, or wear of gasket Deterioration due to chemicals

Replacement

Are there any leaks in the joint parts? Deterioration, or wear of gasket Deterioration due to chemicals

Replacement

9 Warranty Period■The warranty period for our products is one year from the date of delivery, If any defect occurs during the warranty period
and is notified to us, we will immediately investigate the cause and repair or replace the product at our responsibility if a defectis found in our product. However, this warranty applies only when our products are used in Japan. Please contact us when using
our products in other countries.
■ Repair and replacement after the warranty period has expired will be charged.
Even during the warranty period, the warranty will not apply in the following cases.
(1) When the conditions of use exceed the warranty range specified by our company.
(2) When the precautions specified by our company are not observed in construction, installation, handling, maintenance, etc.
(3) When the cause of the defect is not our product.
(4) When the cause of the defect is due to modification or secondary processing of the product other than our product.
(5) When the parts are used for purposes other than the intended use of the product.
(6) In the case of the other damage or failure not caused by our negligence.
* Indirect damage and other special, secondary or incidental damages caused by defects in our products are not covered by
the warranty.
21

ＵＲＬ ｈｔｔｐs：//ｗｗｗ．ｄａｉｌｉｔｅ．ｃｏ．ｊｐ

Tokyo Head Office

F30 Shinagawa Intercity Building A, 2-15-1 Konan, Minato-ku, Tokyo 108-6030, Japan
TEL +81-3-5461-7881
E-Mail:tank@dailite.co.jp

Osaka Branch Office

F17 North Gate Building, 3-1-3 Umeda, Kita-ku, Osaka City, Osaka-hu 530-0001, Japan
TEL +81-6-6453-1333
E-Mail:osaka@dailite.co.jp

Nagoya Office

F16 Mazak Art Plaza, 1-19-30 Aoi, Higashi-ku, Nagoya City, Aichi-ken 461-0004, Japan
TEL +81-52-979-2010
E-Mail:nagoya@dailite.co.jp

Sendai Office

F10 Sendai First Tower, 1-3-1 Ichibancho, Aoba-ku, Sendai City, Miyagi-ken 980-0811, Japan
TEL +081-22-265-3531
E-Mail:sendai@dailite.co.jp

Fukuoka Office

F9 Kamiyo Hakata Chuo Building, 7-21 Chuogai Hakataeki, Hakata-ku, Fukuoka City, Fukuokaken 812-0012, Japan
TEL +081-92-413-7610
E-Mail:fukuoka@dailite.co.jp

Head office Factory

4-4 Koyodai, Ryugasaki City, Ibaraki-ken, 301-0852, Japan
TEL +081-297-64-1001
2024.06