Pressure Seal Bonnet Gate Valve - PSB Gate Valve

General Description: Pressure seal bonnet valves (PSB Valves) are designed for high temperature, high pressure, services mainly encountered in nuclear and fossil fuel power plant. Compare with bolted bonnet valves, Flowtek pressure seal valves are less complicated and can provide absolute excellent seal service with minimum maintenance.

Design Standard:

Basic Design:  API 600/BS1414, ANSI B16.34, EN1984

Face to Face (End to End):  ANSI B16.10, EN558-1

End Connection:  ANSI B16.5, MSS SP-44/ASME B16.47, ANSI B16.25

Products Range:

Size: 2" ~ 24"

Rating: ANSI 600lb ~ 2500lb

Body Materials:  Carbon Steel, Chromium Moly Alloy Steel

Trim:  Per API 600

Design Feature:

Flexible wedge

Optional Impact hand wheel

Stellited seating surface

Low emission control

Full guiding

Absolute bonnet joint leak proof

Application:

Refinery

Petrochemical

Geothermal plant

Power plant