Sempell Nuclear Model HKS High Pressure Check Valve

High pressure forged swing check valves designed to prevent flow reversal in severe applications at nuclear power plants

Specs

Size:

DN 50 - DN 600 (NPS 2 - 24)

Temperature:

Up to +450°C / +842°F

Pressure:

PN 160 - 420 / Class 900 - 2500

Body Material:

forged carbon steels, alloyed steels and stainless steels All in compliance with ASME and DIN standards

Connections:

Buttweld ends: ASME B16.25, DIN 2448 Flanges as per ASME B16.5 and other shapes of welding ends on request

High quality forged materials to guarantee pressure envelope integrity, all in conformity with ASME and DIN standards, alternative of cast available on request
Designed to comply with ASME B16.34 and/or against nuclear design specifications and codes
Bolted bonnet design as a standard, high pressure self-sealing design as an option
Easy in-line service
No penetration of hinge pin to outside
Forged disc/seat
Seat surfaces are lapped mirror finish and can be relapped
Stellited seat/disc for carbon steel designs lapped to mirror finish
Supplied as swing check configuration
The inside shape design of the body results in favorable flow characteristics
Retaining ring assembly - all moving parts are attached to the ring and can be removed easily for service
No penetration of shaft duct to outside eliminates shaft seal leakages