At Flowlink Valves & Controls, our pilot-operated safety relief valves provide precise overpressure protection with superior performance for gas, steam, and liquid applications. Utilizing a pilot control mechanism, these valves offer tighter pressure control and reduced valve chatter. Available in sizes from 1″ to 12″ and pressure ratings up to ANSI Class 2500, they deliver high flow capacity and accurate set-point control. The balanced piston design minimizes back pressure effects, while modular construction simplifies maintenance. Compliant with API 526 and ASME Section VIII standards, these valves ensure reliability in critical industries such as oil & gas, petrochemical, and power generation.
Inlet sizes: Up to 12″
Orifice sizes: D to V inclusive
Set pressure range: 2 to 520 bar g
Temperature range: –180 to 320 °C
Overpressure range: 1 to 5%
Materials: Carbon or stainless Steel or special alloys
Full nozzle design: Fixed or adjustable blowdown (2% min.)
Standard face to centre dimensions conforming to API std. 526.
Codes and standards
We offer Engineering support and a complete suite of Engineered products for all your plant and flow control applications.
