Piston valve
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
Sealing system
♦ Conical metal-to-metal piston seating
♦ Radial soft seating with packing, O’ring, etc.
Operation
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
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