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.
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
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
