FUSHIMAN Co., Ltd. (Japan) TEL. +81-3-5767-4200 http://www.fushiman.co.jp

LevelRegulating
Valve typeType LCD2・LCD3 Level Regulating Valve

ForliquidStandard direction of assembly■ Features● Float and valve body connect each other directly.
Easy to use and everlasting due to simple construction which is installed tank directly.
● Control the level correctly and quickly● Double seated valve allows superior characteristics● Inspection hole allows to inspect internal without taking oﬀ the valve.

■ Speciﬁcations
TypeInternal ﬂoat

External ﬂoat

ModelLCD2LCD3FlowOutﬂow

Inﬂow

Outﬂow

Outﬂow type : The valve will open by the level
Inﬂow

rising.

25−100Liquid level is controlled by

Inlet max. pressure

1.0MPadischarging.

Max. temperature

185℃

Inﬂow type : The valve will open by the level falling.

Body, casing

Cast iron

Valve disc, seat

Stainless steel

Float

Stainless steel

Viscosity

200mm2/s

Speciﬁc gravity

Min. 0.9

Liquid level is controlled by supplying.

Connection

Flanged JIS10KFF

Min.controllable ﬂow

Approx. 10% of rated ﬂow

Seat leakage

0.5% of rated ﬂow or less

■ Installation exampleBoiler or tank
Liquid levelA（Standard liquid level）

Note : Stainless cast steel body is available on request■ Cv values
Size254050

65

80

100

Max. diﬀerential pressure
（MPa）

0.9

0.7

0.6

0.45

0.4

0.3

Cv

6

1016

23

3550

Standard of ﬂoat room（arrow position）
Type LCD3（outﬂow）
Operating liquid level

Level
gauge
Standard liquid level（closed liquid level）

Weight■ Dimensions and weights（mm, kg）

Size

2540

50

65

80

100

L

180

195

200

220250

310

H1107

117

117

122

145

160

H2207

217

217

222

244

259

LCD248525260135

140

LCD3889595100

175

180

227

Remark : Direction between the valve body and the ﬂoat
room is diﬀerent from the standard（upper.
photograph）

11Level Regulating Valve

MaterialSize

Type LCD2・LCD3 Level Regulating Valve

282

210

100282100

H1P212-φ23

P1
H1P2200A JIS10KFF equivalent

φ29

Normal level

H20P112-φ23

H20A MAX.90

210

φ29MAX.90 A

Normal level

P1

P2P2

P1

■ Construction

200A JIS10KFF equivalent

LL

173

282100245

100

P2φ330

P1282

P2P1
H125A−JIS10K

H2

Normal level

P2H1P1245

H2AA245

173

245

Level Regulating Valve

Normal level

φ330

11

P1

LCD2（Internal float : Outﬂow, Push-down close）

P2

LCD2（Internal float : Inﬂow, Push-down open）

25A−JIS10K

LL

LCD3（External float : Inﬂow, Push-down open）

LCD3（External float : Outﬂow, Push-down close）■ Operation
1. Level regulating valve consist of ﬂoat and casing to detect liquid level, lever frame work to transmit ﬂoat movement tovalve disc and body to control the ﬂow.
2. Push-down close valve is applied for outﬂow and push-down open valve is applied for inﬂow.
3. In case of outﬂow, rising liquid level make ﬂoat and lever to rise up, discharge liquid by valve opening and it will makeliquid level fall down. Falling level make valve to close and decrease discharge ﬂow.
4. In case of inﬂow, falling liquid level make ﬂoat and lever to fall down, supply liquid by valve opening and it will makeliquid level rise up. Rising level make valve to close and decrease supply ﬂow.

228

Type LCD2・LCD3 Level Regulating Valve■ Normal level A
Following charts show the required level A against pressure diﬀerence.

1050

6580060604055
Normal level A（mm）

Normal level A（mm）

5e2

Siz

55
50
45
40
35

00.1

0.2

0.3

0.4

0.01

0.5

0.6

0.7

0.8

50
45
100350.9040

Normal level A（mm）

80010

Normal level A（mm）

50

550
450.2

0.3

0.4

0.01

0.2

0.3

0.4

Size
25

40

0.5

0.6

0.7

0.8

0.9

△P MPaLCD2（Internal float : Outﬂow, Push-down close）

e2

0.1

506065Siz

00.1△P MPa5540650.01

LCD2（Internal float : Inﬂow, Push-down open）

60

80

400.5

0.6

0.7

0.8

55
50
45
400.9

10000.1

0.2

80
0.3

0.01

△P MPaLCD3（External float : Inﬂow, Push-down open）

65
0.4

50
0.5

0.6

400.7

Size250.8
0.9△P MPa11LCD3（External float : Outﬂow, Push-down close）

1. Please select suitable size by Cv calculation.
2. Excess pressure diﬀerence prevent normal operation.
3. Each construction and part except assembling work are same for both inﬂow type and outﬂow type.

■ Inquiry
Please specify followings at inquiry.
1. Inﬂow or outﬂow
2. Valve size or piping size
3. Fluid information : Name, inlet pressure, temperature, ﬂow（max., nor., min.）, viscosity
4. Max. allowable pressure drop of valve at max. ﬂow
5. Control range and accuracy of liquid level
6. Material for ﬂuid contact if necessary
7. Connection code
8. Others

229

Level Regulating Valve■ Sizing