Mechanically welded non-return valves
From customizable standard to 100% tailor-made

Standard features (Type X713):
- NOMINAL DIAMETER: DN 25 to 350
- CONSTRUCTION: Mechanically welded Wetted parts: 316L stainless steel (other 304L)
- BODY GASKET: Flat PTFE
- VALVE: Articulated metal
- CONNECTION: Screwed flanges PN16
- TECHNICAL SHEET: Standard valves
Our mechanically welded check valve is available in special productions
Materials
- Stainless steel: 304L, 316L, 316Ti, 321, 904L, U65, others
- Duplex: U45, others
- Nickel alloys: Hastelloy, Inconel, Incoloy, Nickel 200 and 201, Monel and others
- Titaniums
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Others : Zirconium, Tantalum
Gaskets
- Materials : Modified PTFE, filled PTFE, graphite, stainless steel, others
- Types: flat, wavy, spiral, annular, welded lips, welded inserts
- Interlocking: single, double or without
Connections
- welding: Butt welding, Socket welding
- with flanges: screwed, solid or rotating, PN on request
- threaded: Gas, NPT, others
- specials: Glued, SMS, picons, smooth ends, others
Approvals
- ATEX - ACS - ADR - RID - PMUC - ISO 10497 - API 607 - EN15848 - APSAD - RCC-M/MR – autres
Valves
- Kind : Piston, ball, others
Instrumentation
- Temperature sensor
- End of stroke sensor (if counterweight)
Sealing scope
- Materials : Stellite, Hastelloy, Hard Chrome, Stainless Steel and others
- Types: massive, or refills
Additional options
- Counterweight
- Shock absorber,
- Quick closing,
- test sockets,
- Injection taps
- Others
- Band product wanted