Piston valves
From customizable standard to 100% tailor-made
Usable under high temperatures or high pressures, the piston valve is used to modify the passage of a component
Standard characteristics (Ducroux Type 910):
- NOMINAL DIAMETER: DN 25 to 250
- CONSTRUCTION: Mechanically welded. Wetted parts: 316L stainless steel (other 304L)
- BODY: 1 entry/1 exit
- BASE SEALS: Flat PTFE
- PISTON: Flat nose/Non-rotating
- SEALING CONTACT: Axial: Hardened metal/metal contact according to your needs
- RADIAL: Contact metal/PTFE or graphite
- CABLE GLAND: Bolted and self-compensating, PTFE lined
- CONNECTION: PN16 flanges (screwed or solid). Base to be welded on the tank or piping
- ROD: Rotating or rising according to DN
- MANEUVER NUTS: Anti-seize treated stainless steel
- EXIT INCLINATION: 17°
Our piston valves are available in special productions
DOUBLE ENVELOPE
CUSTOM MULTI-WAYS
COLLECTOR
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
- Others: Zirconium, Tantalum
Base seals
- Materials : Modified PTFE, filled PTFE, graphite, stainless steel, others
- Types: Flat, corrugated, spiral, annular, welded lips, welded inserts or others
- Interlocking: Single, double or without
Types of connection
- welding : Butt welding, Socket welding
- flanged: Screwed, solid or rotating
- tapped: Gas, NPT, others
Instrumentation
- Temperature sensor
- Limit switch (inductive or dry contact)
- solenoid valve
- Positioner
Approvals
- ATEX - ACS - ADR - RID - PMUC - ISO 10497 - API 607 - EN15848 – APSAD – others
Toppings
- Materials : Modified PTFE, filled PTFE, graphite, others
Sealing scope
- Axial: Hardened metal/metal contact according to your needs (see materials)
- radial: Contact metal/PTFE or graphite (see trims)
Isometry
- Inclines: on demand
- Base or manifold: on request flat or curved
- Multi-way body: on demand
Commands
- Manual: with or without reducer
- Pneumatic: piston, single or double effect
- Electric: with or without fail safe
- Option: Additional manual emergency control, padlockable control, remote control
Additional options
- rotating piston,
- gas box,
- test sockets,
- injections
- Construction for regulation,
- Others