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Item # 40-28, Rate of Flow Control and Fuel Shut-off Valve

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  • Positive Flow Limitation
  • "Fail Safe" Construction
  • Closes Tight on Signal From Float Control
  • Adjustable Maximum Flow Rate Setting
  • No Packing Glands Assure Leak-Proof Service
  • Position Indicator is Standard Equipment
The Cla-Val Model 40-28 Rate of Flow Control and Fuel Shut-off Valve limits the flow to a pre-set maximum and also closes quickly in response to a signal from the Float Control of a Fuel-Water Filter/Separator, it is a hydraulically-operated, pilot controlled, diaphragm-type, globe valve. Should the diaphragm become damaged the valve will close tight, pro viding "fail safe" operation.

The rate of flow control pilot is actuated by differential pressure produced across a calibrated stainless steel orifice plate installed at the valve inlet. The flow rate setting is adjustable from 90 percent to 112 percent of rated capacity of the Filter/Separator. This Valve has an accuracy of plus or minus 5 percent of the adjusted rate setting. An auxiliary 3- way diaphragm control pilot provides immediate response to operating pressure signal from the Float Control.




Unit of Measure: Imperial Metric Both

 Specifications   Typical Application   Float Controls   Purchase Specifications   

Manufacturer
Cla-Val

Product Type
Rate of Flow Control and Fuel Shut-off Valve

Size
10 in
12 in
2 in
2 1/2 in
3 in
4 in
6 in
8 in

Flange
Cast Aluminum, 150 ANSI B16.1
Cast Steel, 150 and 300 ANSI B16.5
Ductile Iron, 150 and 300 ANSI B16.42
Stainless Steel, 150 ANSI B16.5

Pressure Class
150 Class
300 Class

Max. Pressure
275 psi
400 psi

Temperature Range
-40 to +180 ºF

Military
MIL-F-8901

Military Aviation Fluids
MIL-G-5572
MIL-T-5624L
MIL-T-83133A

Commercial Aviation Fluids
JET A
JET A-1

Main Valve Body & Cover
Cast Aluminum 356-T6
Cast Bronze ASTM B62
Cast Stainless Steel 303
Cast Steel ASTM A216-WCB
Ductile Iron ASTM A-536

Main Valve Trim
303 Stainless Steel
Bronze ASTM B61

Pilot Controls
303 Stainless Steel
Aluminum 356-T6
Bronze ASTM B62

Rubber Parts
Buna-N
Synthetic Rubber
Viton

Orifice Plate
303 Stainless Steel
Copper


 MORE IMAGES 

·  Schematic Diagram


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Details
(PDF, 1182KB)


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