Check Valves Β· Tilting Disc Check Valves
Hydraulic Buffer Tilting WCB Check Valves
A tilting-disc check valve in a WCB cast-steel execution with hydraulic buffering: the disc tilts open under forward flow and the buffered closure damps the slam that plain swing checks transmit back into the line. The manufacturer sizes it 2 in to 24 in (DN50-DN600) at PN10/16/25 for pump-outlet duty on water and neutral liquids, where water-hammer control is the buying reason.
Part of the Tilting Disc Check Valves family
Last updated: 2026-11
Specifications
| size range | 2 in-24 in (50-600mm) |
|---|---|
| pressure class | PN10/16/25 (10/16/25Mpa) |
| body materials | WCB (ASTM A216 / Cast steel) |
| temperature range | -20 to 120C |
| design standards | EN593, DIN 2501 PN6/10/16, DIN3202 K1 |
| seal material | WCB (ASTM A216 / Cast steel) |
| stem material | Stainless Steel 410 |
| medium | Water and neutral liquid |
Application & selection guidance
Specify this execution where pump stop-transient noise or water hammer is the complaint - circulating-water, building-services and sewage pump outlets are the stated applications. Confirm body/seal material (both WCB on the benchmark page) and stem material against the medium temperature, stated as -20 to 120 C.
Frequently asked questions
What does the hydraulic buffer actually change?
It slows the disc over the last part of its closing travel, so reverse-flow arrest does not produce the sudden metal-to-metal stop that causes water hammer. The manufacturer positions the valve specifically for pressurised pump outlets in industrial circulating water, urban water supply, high-rise buildings and sewage duty.
What size and pressure range is covered?
2 in to 24 in (50-600 mm) and PN10/16/25 per the specification block, with standards EN593, DIN 2501 PN6/10/16 and DIN3202 K1.
What materials are offered on the benchmark page?
Body and seal in WCB (ASTM A216 cast steel) and stem in stainless steel 410, with water and neutral liquids as the stated medium between -20 and 120 C. Other executions should be confirmed with the supplier.
Ordering & documentation
Documents
Ask for the documentation set you need with the inquiry β typical items for this execution (material certificates, test reports to the listed inspection standard, dimensional drawings) are confirmed and supplied with the quotation.
Quotation
A quotation-ready inquiry states: nominal size and pressure rating, body and seat material preference, end connection, operation, and the service medium with temperature. Typical values on this page are benchmark reference ranges; the binding values are confirmed at quotation.
Sample & supply
Supply terms, order quantities and lead time are agreed per order β state the destination country and required schedule with the inquiry.
Storage & shipping
Store valves with seats and seals protected from UV, ozone and deformation, keep end-face protectors on until installation, and for elastomer- or PTFE-seated executions avoid prolonged outdoor storage β seat compounds age fastest in direct sunlight and freezing conditions.
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