Piston valve


Piston valve 606M

Our piston valve :

No dead space, particularly suitable for high viscosity and polymerising fluids

DN 15 to DN 250
1/2" to 10"
PN 10 to PN 420 acc. to size
150 to 2500 Lbs acc. to DN

Functions – Piston valve

♦ tank or reactor bottom outlet valve
♦ feeding valve : side mounted or upright
♦ sampling or injection valve : at tank bottom or laterally / on a section of piping
♦ walls cleaning by spraying or streaming : installed on reactor dome
♦ In-line stop valve, no dead areas

Operating principle – Piston valve

– Shutter : Right Piston and polished (stellite in option)
– Process/Atmosphere sealing with stuffing box (repackable in service)
– Full bore
– Low pressure drop

Fabrication – Piston valve

  • Construction materials: : Carbon Steel (CS), Stainless Steel (SS), Duplex & Super Duplex, Titanium, Zirconium, Uranus® B6, Tantalum, Nickel, Hastelloy®, Monel
  • Construction Methods : Fabricated (Welded), Cast
  • Uses – Piston valve

    • Service conditions : High pressure, High temperature, Low temperature, Abrasion, Corrosion, Vacuum
    • Types of fluids : Liquids, Liquids with solid particles, gas, Powder and powdery media, High viscosity fluids
    • Applications : Fine chemicals, Plastics and polymers, General chemicals, Petrochemicals

    Features & Options

    Piston valve 606M

    DN 15 to DN 250
    1/2" to 10"
    PN 10 to PN 420 acc. to size
    150 to 2500 Lbs acc. to DN

    Sealing system

    ♦ Conical metal-to-metal piston seating
    ♦ Radial soft seating with packing, O’ring, etc.


    Handwheel or crank according to size,handle + return spring (dead man handle),double acting pneumatic actuator,single acting pneumatic actuator (acc. to DN, Class and/or stroke),hydraulic actuator,electric actuator,air cylinder.

    Closing device

    piston with conical seating, straight piston

    Options – Piston valve

    – adaptation to any type of connection
    contoured piston to match the tank or line profile (no dead area)
    – crust breaking function
    – hard faced seating surfaces according to media and/or pressure
    – vacuum tight
    – firesafe design
    heating jacket
    – FDA grade gaskets and packings
    leak detector at stuffing box
    interchangeable seat
    – inside and/or outside polishing
    – additional draining and/or cleaning nozzles
    stroke limit or proximity switches
    – manual override for pneumatic actuator
    – dry air actuator
    – stainless steel pneumatic actuator
    – pneumatic actuator with stroke damper if trip time > 50 mm/s
    – actuator locking system (safety)
    – manual operator with locking mechanism
    – chain handwheel
    – manual operator extension, if required with cardans
    – manual operator mounted on ISO base for later adaptation of actuator
    electric actuator with local/remote controls
    CAUTION : some options are not compatible