EXCESS FLOW SHUTDOWN
VALVE

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

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

Temperature rating

Up to 85ºC with standard seals.

Media

Liquid and gas with low content of suspended solids.

Pipe sizes

2” (50 NB) to 16” (400 NB)

Flanges

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

pH levels & chlorides

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

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 ℓ/sec | ΔP: 12.5 psi

200 NB

Cv/Kv: 1086 | Flow (max): 152 ℓ/sec | ΔP: 1.4 psi

250 NB

Cv/Kv: 1433 | Flow (max): 233 ℓ/sec | ΔP: 6.7 psi

300 NB

Cv/Kv: 1936 | Flow (max): 337 ℓ/sec | ΔP: 7.9 psi

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

SIZE

 

150 NB

200 NB

250 NB

300 NB

A (mm)

381

494

573

652

B (mm)

381

480

573

645

C (mm)

711

913

1059

1198

#150 F-T-F

 

559mm / 229kg

660mm / 405kg

787mm / 744kg

838mm / 1052kg

#300 F-T-F

 

59mm / 245kg

660mm / 429kg

787mm / 778kg

838mm / 1098kg

#600 F-T-F

 

559mm / 270kg

660mm / 460kg

787mm / 840kg

838mm / 1164kg

#900 F-T-F

610mm / 297kg

737mm / 509kg

838mm / 891kg

965mm / 1277kg

#1500 F-T-F

705mm / TBD

832mm / TBD

991mm / TBD

1130mm / TBD