Gas safety valve 814

for the chemical industrystainless steelsteel

Product description
The Type 814 pilot-operated safety valve (Pop Action) opens abruptly to relieve overpressure and is designed to compensate large reaction forces. It features two opposite outlets and is suitable for gas applications under industrial standards.

Key features

• Pilot-operated safety valve with pop action
• Two opposite discharge outlets to balance reaction forces
• Suitable for gas services; approvals example: ASME UV (USA)
• Available with multiple seat gasket options (O-ring, metallic, sealing plate)

Applications & Industries

• Oil & Gas
• Petrochemical
• Technical gas systems

The optimal solution for

• Protection of gases and gas systems
• Operation up to 96% of set pressure
• Handling of large reaction forces

Technical features Type 814
Set pressure (CE): 2.5 - 102.1 bar | 36.0 - 1480.0 psig
Set pressure (ASME): 2.5 - 102.1 bar | 36.0 - 1480.0 psig
Temperature range (CE/ASME): -162 to 300 °C | -260 to 572 °F
Capacity: Orifice P+ - T+
Connections DIN EN 1092: DN 100 - DN 200
Connections ASME B16.5: NPS 4 to NPS 8
Flange class inlet DIN EN 1092: PN 10 - PN 100
Flange class inlet ASME B16.5: Class 150 - Class 600
Body material: 1.0619, 1.4408 | SA 216 WCB, SA 351 CF8M, SA 352 LCB, SA 351 CF3M
Narrowest flow diameter d₀: 95 - 180 mm | 3.74 - 7.087 in
Narrowest flow area A₀: 7088 - 25446.9 mm² | 10.986 - 39.443 in²
Seat gasket: O-ring, Metallic, Sealing plate

Characteristics / Technical specifications

• Set pressure (CE/ASME): 2.5 - 102.1 bar (36.0 - 1480.0 psig)
• Temperature range: -162 to 300 °C (-260 to 572 °F)
• Connections: DN 100 - DN 200 (DIN EN 1092); NPS 4 - NPS 8 (ASME B16.5)
• Flange classes: PN 10 - PN 100 (DIN); Class 150 - Class 600 (ASME)
• Body materials: 1.0619, 1.4408; SA 216 WCB, SA 351 CF8M, SA 352 LCB, SA 351 CF3M
• Orifice diameter d₀: 95 - 180 mm
• Orifice area A₀: 7088 - 25446.9 mm²
• Seat gasket options: O-ring, metallic, sealing plate