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Isolation Valves

Piston Valves

A gland-less on/off valve: a piston slides into two sealing rings, so there is no stem packing to leak on steam. We supply piston valves from Navi Mumbai to plants, contractors and projects across India.

Sectional drawing: piston valves

Types we supply

  • Straight pattern
  • Angle pattern
  • Y-pattern
  • Lockable handwheel
  • Extended spindle
  • With drain
  • High-pressure forged
  • With position indicator

Key facts

Key facts for Piston Valves
Typical size range15 mm to 200 mm
Pressure / ratingPN16 to PN40
MaterialsCast iron, SG iron, cast steel, forged steel; stainless steel piston; graphite sealing rings
StandardsMaker’s standard; IBR on request
Typical applicationsSteam, condensate, hot water, thermal oil and air — on/off duty

Ranges are typical for the product type, not a stock list. We confirm the exact size, rating, make and delivery on the quotation.

What to include in your enquiry

  • Valve type (for example: solid wedge gate, Y-pattern globe)
  • Size (mm or inch)
  • Pressure class or rating (PN or ASME Class)
  • Body material and grade (for example: WCB, CF8M, cast iron)
  • Trim, seat or lining material
  • End connection and operation (flanged, screwed; handwheel, gear, actuator)
  • Fluid, temperature and pressure
  • Quantity, approved makes and documents (test certificate, IBR, inspection)

Piston Valves in our catalogue

Individual items with their listed specifications.

Piston ValvesUni Klinger

Uni Klinger Piston Valve

Size

15 mm
Body Material
Cast Iron
End Connection
Flanged
Pressure Rating
PN10
Details
Piston ValvesUni Klinger

Uni Klinger UKL Piston Valve

Stocked sizes

15 mm50 mm
Body Material
Cast Iron
End Connection
Flanged
Pressure Rating
PN10
Details
Piston ValvesForbes Marshall

Forbes Marshall Piston Valve

Body Material
Cast Iron
End Connection
Flanged
Pressure Rating
PN10
Operation
Manual
Details

FAQ

Piston Valves: common questions

Piston Valves are typically available from 15 mm to 200 mm, rated PN16 to PN40. Exact sizes depend on the type, material and manufacturer; we confirm availability on the quotation.

Depending on type and manufacturer: Maker’s standard; IBR on request. Tell us the standard your specification calls for and we will quote against it.

We deal in piston valves from leading manufacturers, matched to your specification and approved-makes list. Tell us the make you need, or ask us to recommend one for the duty.