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EXCESS FLOW SHUTDOWN
VALVE

The Hydrocore Excess Flow Shutdown Valve is used for pipeline safety isolation, when excess flow occurs.

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Principals of Operation

The Hydrocore™ excess flow shutdown valve closes when a preset differential pressure ∆P=Pu-Pd exists across the valve. The valve is powered by the line-fluid pressure with no need for external actuators, pilots, instruments or an external power source. 

HCA EXCESS FLOW SHUTDOWN VALVE.png
HCA EFS CTRL SECTION DRAWING.PNG
FEATURES
  • Does not need an expensive actuator to operate

  • Does not need a gears, spindle, bushes, shafts, keys and keyways that can wear out and cause the limit switch to go out or cause the actuator to fail.

  • ​No pneumatic systems.

  • Superior flow coefficient (Cv/Kv)

  • Can be maintained in line

  • High cavitation resistance due to design

  • Stainless steel moving internals parts

  • Cast steel body 

  • Low pressure drop across valve

  • Flanges and face-to-face dimensions to customer specification

SPECIFICATIONS
FLOW COEFFICIENTS & FLOW RATES

Pressure rating

160 bar (max) working pressure

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Temperature rating

Up to 85ºC with standard seals.

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Media

Liquid and gas with low content of suspended solids.

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Pipe sizes

2” (50 NB) to 16” (400 NB)

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Flanges

SABS 1123, BS4504, BS10, ASME B16.34, ANSI B16.5

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pH levels & chlorides

Parts of the valve are made from stainless steel and can withstand a low level of chlorides.

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Installation position

The valve can be installed in any position

 

Seating

Seat Leakage - B16.104 class III, IV, V or VI, depends on valve type and application.

150 NB

Cv/Kv: 525 | Flow (max): 117 â„“/sec | ΔP: 12.5 psi

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200 NB

Cv/Kv: 1086 | Flow (max): 152 â„“/sec | ΔP: 1.4 psi

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250 NB

Cv/Kv: 1433 | Flow (max): 233 â„“/sec | ΔP: 6.7 psi

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300 NB

Cv/Kv: 1936 | Flow (max): 337 â„“/sec | ΔP: 7.9 psi

DIMENSIONS AND WEIGHTS
HCA EXCESS FLOW SHUTDOWN VALVE - SPECS.png

SIZE

 

150 NB

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200 NB

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250 NB

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300 NB

A (mm)

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381

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494

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573

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652

B (mm)

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381

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480

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573

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645

C (mm)

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711

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913

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1059

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1198

#150 F-T-F

 

559mm / 229kg

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660mm / 405kg

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787mm / 744kg

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838mm / 1052kg

#300 F-T-F

 

59mm / 245kg

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660mm / 429kg

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787mm / 778kg

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838mm / 1098kg

#600 F-T-F

 

559mm / 270kg

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660mm / 460kg

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787mm / 840kg

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838mm / 1164kg

#900 F-T-F

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610mm / 297kg

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737mm / 509kg

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838mm / 891kg

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965mm / 1277kg

#1500 F-T-F

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705mm / TBD

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832mm / TBD

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991mm / TBD

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1130mm / TBD

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