Material & construction
Axial in-line check valve with spring-loaded poppet and threaded end connections.

Compact non-return protection in small-bore liquid or gas service.
| NPT sizes | 1/4-2 in (DN 8-50 nominal) |
|---|---|
| Material | 316 stainless; PTFE/FKM/EPDM as duty allows |
| Opening behavior | Spring cracking pressure; by selected model |
| Connection | Female NPT; 0.540-2.375 in mating pipe OD (13.7-60.3 mm) |
Industry reference selections; ordered specification requires supplier confirmation.
View catalogue page 33 ↗Axial in-line check valve with spring-loaded poppet and threaded end connections.
Select sealing compound, mesh opening, drain plug and orientation.
Confirm flow direction, installation orientation, cracking pressure and minimum operating flow. Evaluate reverse-flow transients and pressure loss in the actual line.
NPT to ASME B1.20.1; specify shell and seat leakage tests, cracking pressure and installation orientation.
Separated cartons on pallets; protect threads and seal faces. Consolidate compatible sizes by purchase schedule.
Share your product IDs, quantities and operating conditions.