
Class 150 (PN16), Class 300 (PN40), Class 600 (PN63), Class 900 (PN100) for high-pressure relief applications in accordance with system requirements

High Performance • Durable
Spring-loaded pressure safety valve for protecting industrial equipment and pressurized systems against overpressure.
Excess pressure in a pressurized vessel or pipeline can damage equipment and compromise process safety. A Pressure Safety Valve protects the system by opening automatically when the inlet pressure reaches the specified set pressure, allowing excess fluid to discharge through a designated relief path.
The valve generally uses a spring-loaded disc held against a seat during normal operation. When the force generated by system pressure overcomes the spring load, the disc lifts and permits discharge. The valve reseats once pressure has fallen sufficiently, according to its design and operating characteristics.
African Valve is a Pressure Safety Valve Supplier in Zambia for oil and gas processing, refineries, petrochemical plants and power generation facilities across Nigeria and other African markets. Carbon steel, stainless steel and alloy steel constructions can be selected according to the protected equipment and operating medium.
Parameter | Specification |
|---|---|
Valve Type | Pressure Safety Valve |
Design | Direct Spring Loaded |
Size Range | DN15–DN150 |
Pressure Class | ASME Class 150, 300, 600, 900, 1500 |
Body Material | ASTM A216 WCB, ASTM A217 WC6, ASTM A351 CF8M |
Seat Material | Stainless Steel Metal Seat / PTFE Soft Seat |
End Connection | Flanged / Threaded |
Operation | Automatic Pressure Actuated |
Set Pressure | Factory Set and Calibrated |
Applicable Service | Gas, Vapour, Steam or Liquid |
Design Standard | API 526 for applicable flanged designs |
Sizing Reference | API 520 |
Seat Tightness Testing | API 527 |