VEPL-NSCV-1601 (Cl.150) to VEPL-NSCV-1606 (Cl.2500)
Axial Flow Non-Slam Check Valve
API 6D axial-flow non-slam check valve with soft seat and metal-to-metal seating options. Spring-loaded diffuser disc closes before flow reversal, eliminating water hammer completely.
- Pressure
- Class 150–2500 (32–651 Kg+
- Size Range
- 2" to 24"
- Testing
- API 598
The anatomyscroll to separate
Assembly view
Scroll to separate the pressure envelope from its gearbox, trim, and hardware — the actual model for this valve, not a generic stand-in.
Technical specifications
- Material
- Body: ASTM A216 GR.WCB (CS) / ASTM A351 GR.CF8M (SS) / ASTM A995 GR.5A (Duplex)
- Pressure Rating
- Class 150–2500 (32–651 Kg/cm²)
- Temperature Range
- -29°C to +427°C (CS body; INCONEL X-750 spring)
- Size Range
- 2" to 24" (DN 50–600)
- Seat Ring
- Integral with body + Stellited 6
- Disc
- ASTM A351 GR.CF8M
- Diffuser
- ASTM A216 GR.WCB (CS) / ASTM A217 GR.WC9 (Alloy)
- Stem
- SS 304 / SS 316
- Spring
- INCONEL X-750
- End Connections
- Flanged (ASME B16.5), RTJ, Butt Weld (ASME B16.25)
- Face T To Face
- ASME B16.10 (Short Pattern)
- Model Numbers
- VEPL-NSCV-1601 (Cl.150) to VEPL-NSCV-1606 (Cl.2500)
Standards & testing
- MFG. STD: API 6D
- Face to Face: ASME B16.10
- Flange End: ASME B16.5
- Insp. & Test: API 598
- Fire Safe: API 607 / API 6FA
- Press. & Temp: ASME B16.34
Custom engineering
Special trims, exotic materials and non-standard dimensions are available against your datasheet — send it with your quote request and our engineering team will respond with a compliant proposal.
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