Material & construction
Forged body with guided lift piston for reverse-flow prevention; installation orientation and minimum flow require confirmation.
WOG-441 / Check valves
Forged Steel Piston Check Valve
Standard isolation, flow-direction or straining functions in production-fluid and utility piping.
| Nominal size | NPS 1/2-2 (DN 15-50) |
|---|---|
| Class | Class 800; rating by material/temperature |
| Body / ends | A105 / A182 F316; NPT or socket weld |
| Bonnet / trim | Bolted bonnet; trim specified |
Industry reference selections; ordered specification requires supplier confirmation.
View catalogue page 34 ↗Options & acceptance
Select published size, class, ends, trim and seal materials. State inspection, shell and seat-leakage requirements.
Application & RFQ details
Confirm flow direction, installation orientation, cracking pressure and minimum operating flow. Evaluate reverse-flow transients and pressure loss in the actual line.
Standards & documents
API 602 for compact steel valves; ASME B16.34 rating basis and specified API 598 shell/seat tests. Confirm applicable editions.
Packing
Separated cartons on pallets; protect threads, sealing faces and fragile parts. State gross weight per package.
Related products
WOG-189
Dual-plate Wafer Check Valve
Automatic reverse-flow prevention in compatible process and utility lines.
Specifications & details ↗
WOG-324
In-line Spring Check Valve
Compact non-return protection in small-bore liquid or gas service.
Specifications & details ↗
WOG-325
Flanged Swing Check Valve
Prevent reverse flow in compatible process and utility lines.
Specifications & details ↗