Pressure Sealing Swing Check Valve

Product Description

Pressure sealing swing check valves are suitable for service in horizontal line with cap vertical or in a vertical line with flow upward. The pressure seal design incorporates a metal-to-metal seal that becomes tighter as the pressure increases. The initial preload deforms the taper on the soft iron gasket to mate with the taper on the bonnet.

Specification

Pressure Range: Class 900 ~ 2500

Nominal Size Range: DN 50 ~ 400, NPS 2" ~ 16" 

Connection: Flange (RF, FF, RTJ), Butt Welded (BW), Socket Welded (SW)

Pressure Seal Bonnet

Swing Type, Anti-Rotation Disc

Renewable seat rings

Fully guided, flexible disc

Standard

Design: BS 1868

Wall thickness: API 600

Pressure-temperature rating: ASME B16.34

Face-to-face dimensions for butt weld and flanged valves: ASME B16.10

Flange design: ASME B16.5

Butt welding design: ASME B16.25

Feature

Swing Disc Design

Pressure Seal Cover

Internal Hinge Pin Design Standard

Through-body Hinge Pin Design Available

Flanged or Butt-welding Ends

Extra Lever, Counter Weight and Damper Available