Piston valves
From customizable standard to 100% tailor-made
Standard characteristics (Ducroux Type 910):
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NOMINAL DIAMETER: DN 25 to 250
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CONSTRUCTION: Mechanically welded. Wetted parts: 316L stainless steel (other 304L)
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BODY: 1 entry/1 exit
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BASE SEALS: Flat PTFE
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PISTON: Flat nose/Non-rotating
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SEALING CONTACT: Axial: Hardened metal/metal contact according to your needs
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RADIAL: Contact metal/PTFE or graphite
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CABLE GLAND: Bolted and self-compensating, PTFE lined
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CONNECTION: PN16 flanges (screwed or solid). Base to be welded on the tank or piping
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ROD: Rotating or rising according to DN
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MANEUVER NUTS: Anti-seize treated stainless steel
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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
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
Types of connection
welding : Butt welding, Socket welding
flanged: Screwed, solid or rotating
tapped: Gas, NPT, others
Ordered
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
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
Additional options
rotating piston,
gas box,
test sockets,
injections,
Construction for regulation,
Others
Gallery