Material & construction
Wafer body with two hinged plates, hinge pin and spring-assisted closing.

Automatic reverse-flow prevention in compatible process and utility lines.
| Nominal size | NPS 2-12 (DN 50-300) |
|---|---|
| Connection | Wafer body between matching pipe flanges |
| Material / trim | Body, disc and seat materials selected for fluid |
| Rating | Pressure-temperature rating by actual design; confirm before supply |
Industry reference selections; ordered specification requires supplier confirmation.
View catalogue page 33 ↗Wafer body with two hinged plates, hinge pin and spring-assisted closing.
Body and plate material, seat compound, spring material and flange compatibility.
Confirm flow direction, installation orientation, cracking pressure and minimum operating flow. Evaluate reverse-flow transients and pressure loss in the actual line.
Confirm material and pressure-temperature limits, dimensional interface and shell/seat test requirements. Certification requires exact-model evidence.
Protect connections, seat faces and operators. Carton or crate by size and weight; retain lot identification.
Share your product IDs, quantities and operating conditions.