Corrosion-resistant purgemeter with ﬂuorocarbon
resin body for measuring medium ﬂow rates ofliquids

P-774
Purgemeter■ OUTLINEThe P-774 is a new fluorocarbon resin purgemeter with a face-to-facedimension of 100 mm. Its cleanliness is ensured by a PFA-molded
integral body and ﬁtting as well as the welded sealing section.

■ MAJOR APPLICATIONS
Pure/ultra - pure waterlines and chemical lines in semiconductor
production processes■ STANDARD SPECIFICATIONS
Measuring ﬂuidLiquids

Measuring range

Water

Min. 0.1 to 1 L/min
Max. 0.7 to 7 L/min

Range ability
10：1
Indication accuracy±5％ F.S.
Fluid pressure
Max. 0.5MPa
Fluid temperature
Max. 60℃
Meter body
PFA
Integrally molded
Tapered tube PFA
For models with a valve : PTFE
Material Gasket
Side plate
PVC
Cover
PVC
Process connection
φ10 Pillar ﬁtting（Super ﬁtting）
Mounting
Screw mount on the panel front (Standard)
Massapprox. 0.5 kg■ ALARM CONTACT AND OUTPUT
Type
Reed switch type alarm unit

GeneralCE, UL-approved

Availability
×○For CE approval, refer to "Index & Quick Reference for P Series
Purgemeters" (TG-S0001).

■ STANDARD FLOW RATE TABLE
For alarm output codes of 0or E■ BASIC MODEL CODE
Model CodeDescriptions‒ □ □ ‒ T □ ‒ □‒ 0
Not provided‒ UOutletValve‒ ZSpecial0
Not provided
Reed switch alarm
A(LO)
Reed switch alarm
B(LC)
Alarm output
Reed switch alarmC(HO)Reed switch alarm
D(HC)ZSpecial
P-774

Wetted parts
material‒ T

PFA（Standard）

Not provided /Welded structure
Gasket material(Standard)
ZSpecial
Tube end φ10 Pillar‒ Pﬁtting
Process connection size
‒ Z Special

Notes

Refer to "Index& Quick
Reference forP Series
Purgemeters"(TG-S0001).

Tapered tubes
are also madeof PFA

W

For alarm output codes of A to D

Water

Water

Alarm setting
range

0.1 to 1 L/min
0.2 to 2 L/min
0.3 to 3 L/min
0.5 to 5 L/min
0.6 to 6 L/min
0.7 to 7 L/min

0.3 to 3 L/min
0.5 to 5 L/min
0.6 to 6 L/min
0.7 to 7 L/min

0.6 to 2.4 L/min
1.0 to 4.0 L/min
1.2 to 4.8 L/min
1.4 to 5.6 L/min

Although other flow rate specifications are available, some flow ranges
need to be changed. Contact us for details.

Super ﬁtting■ OTHER AVAILABLE OPTIONS
You can specify the following options:
Alarm setting on the front face, length of reed switch lead wire, double
graduations, special graduations, etc.
For details, refer to "Index & Quick Reference for P Series Purgemeters"(TG-S0001).

TG-F1098-2E
3rd edition Oct 2019 K
1st edition Jul 2014 K

P-774Purgemeter■ ORDERING INFORMATION
Basic model code

Items to be speciﬁed①②③④⑤⑥
Fluid name − Flow range − Press. − Temp. − Mounting option − Other options

Ｐ-774- □□ - □□ - □（Select in the model code table.）（Refer to "Index & Quick Reference for P Series Purgemeters" (TG-S0001).）■ DIMENSIONS● Standard typeP − 774 − 00 − TW − P■ Screw mounting on the panel front■ Without a valve

Depth 5

Panel cut● Standard typeP − 774 − U0 − TW − P■ Screw mounting on the panel front■ Valve at the outlet
34（MAX.41）

40（28）
φ10×φ8202-φ

20

100

76

124

100

2-M4
Depth 52-φ5

Panel cut
Note: Use non-magnetic material for the panel when the alarm output code is one of A to D.

● Standard material
Parts nameStandard material
Body, Tapered tube ○ PFA integral mold
Float○ PTFE
Float stopper○ PFA
Valve body
○ PCTFE
Valve needle○ PCTFE
Scale plateTransparent PVC
Side plate
PVC
CoverPVC
Parts marked ○ come in contact withthe measuring ﬂuid.

* Specification is subject to change without notice.

Head Office : Shiba Toho Building, 1 – 7 – 24 Shibakoen, Minato-ku, Tokyo 105 – 8558
Tel : +81-3 – 3431 – 1625 (KEY) ; Fax : +81-3 – 3433 – 4922
e-mail : overseas.sales@tokyokeiso.co.jp ; URL : https://www.tokyokeiso.co.jp
2

TOKYO KEISO CO., LTD.

TG-F1098-2E