Flow-Tek FT 520series spring loaded pressure relief valve has been engineered to providing high quality cover pressure protection for Air, Gas, Vapors, Liquid and two phase application in an exceptionally rugged standardized design to the process and power industries.

All valve casting and forging are manufactured to ASME/ASTM standard material specification. These are available in WCB/WC6/WCC/WC9/CF8/CF8M/CA15/Hastalloy-C/NACE MR0175 etc., High pressure valves will have Inconel Disc. And SS347H-Nozzle. Standard valves have SS316 Nozzle and Disc.

Technical Specification :

Valve size : 1″xGx2″ to 10″xVx14″ ( SMALLER SIZES AVAILABLE AS PER REQUIRMENT)*

Orifice size : 20.0mm to 192mm

Orifice area : 0.44in² to 44.85in² (2.85cm² to 289.38cm²)

Inlet rating : ANSI class 150,300,600 & 900

Temp. range : upto +538°c

Pressure range : ASK FOR charts

Applicable Standard:

Design Standard : API-520 , API-521, API-526, API-527, ASME SEC-VIII End

Connection : Flanged End to suit ANSI / DIN / BS / JIS / IS etc.

Testing Standard : API 527

• Inlet pressures up to 150 psi (10 bar)
• Rugged, heavy-duty design allows emergency outlet pressure to reach 100% on inlet pressure without damaging valve
• Completely Self-Operated – No external power source required
• Soft elastomer plug provides ANSI Class VI shutoff
• Easy to inspect and maintain – Seat and plug can be inspected without removing body from the line
• Completely self-operated. No external power source required
• Wide range of low back-pressure settings – Choose from six pressure ranges for set points ranging from 1 w.c. to 7 psi (3mbar to 0,5 bar)
• Soft elastomer plug provides ANSI Class VI shutoff

• ​Air, Nitrogen, Natural Gas, Hydrogen and many other Industrial Gases. Sewage plants.
• Process industries.

PRESSURE REDUCING VALVE MODEL – FT-LPRV-1001