Inclined disc geometry minimises slam on closure, providing low-turbulence non-return protection for pump and compressor discharge service.
The tilting disc check valve pivots a single inclined disc on a pin located above the disc's centre of gravity. This geometry means the disc begins closing before flow velocity drops to zero, dramatically reducing the reverse flow impulse that causes water hammer in conventional swing check designs. The result is a smooth, low-slam closure that protects pump seals and downstream pipework from destructive pressure transients.
VALVAX tilting disc checks are designed to ASME B16.34 and tested to API 598. The full-bore, streamlined flow passage produces significantly lower pressure drop than lift-type checks, making this valve the preferred non-return solution in pump and compressor discharge service where energy efficiency matters.
| Parameter | Value |
|---|---|
| Design Standard | ASME B16.34 |
| Size Range | 2″ – 24″ (DN50 – DN600) |
| Pressure Class | ASME Class 150 – 300 |
| Face to Face | ASME B16.10 |
| End Connections | RF Flanged / BW |
| Body Material | WCB / CF8M / LCC |
| Disc Material | SS316 / CF8M / Hard-faced |
| Seat Material | Integral machined / Resilient insert |
| Design Temp. | -46°C to +425°C |
| Testing | API 598 |
ASTM A216 WCB
Pump discharge protection in water, hydrocarbons, and general process service.
ASTM A352 LCC
Cold climate and low-temperature process applications requiring Charpy-tested materials.
ASTM A351 CF8M
Corrosive media, chemical plant pump discharge, and marine pump protection applications.
ASTM A890 4A
Offshore and seawater pump discharge where chloride attack and erosion are concerns.
Pump station discharge where water hammer from check slam would damage downstream systems.
Crude oil and product pump discharge in gathering, transmission, and terminal applications.
Boiler feedwater pump discharge, condenser cooling water, and circulating water pump protection.
Corrosive fluid pump discharge protection where standard swing checks suffer seat erosion.
Seawater pump discharge and ballast pump non-return service on vessels and offshore platforms.
Specify your pump duty, pipe size, and fluid — we will engineer the right check valve solution.