Piston valve

 

Piston valve was Innovated by replacing the disk and seat of a conventional globe valve with a cylindrical piston and two resilient, replaceable sealing rings.  Constant research and development have resulted in sealing rings that provide the piston valve with an extraordinary ability to seal line pressure and prevent leakage to the atmosphere. 
Piston valve is a linear movement valve in which a stainless steel piston travels between the upper and lower seal ring. These rings are separated by a lantern bushing, which supports the piston and creates a tight seal. When the valve is in the open position, the upper seal ring, in conjunction with the piston, prevents leakage through the stem. In the closed position, the lower seal ring seals the valve passage and provides a tight shutoff.

Known for their extraordinary performance and long life, Piston Valves can handle a variety of media such as steam, thermal fluid, condensate and many other liquids and gasses. They can be used in on/off and throttling applications.

RANGES:
FORGED CARBON STEEL (A105) WITH SS INTERNALS 15 NB, 20 NB, 25 NB, 40 NB,50NB in socket weld, Butt Weld ends as well as Screwed BSPT /NPT Ends For socket weld, Butt Welded ends, Max Operating Pressure : 78 kg/cm2 Max Operating Temperature : 427 deg. C CAST CARBON STEEL (ASTM A 216 WCB ) WITH SS INTERNALS 15NB to 200NB in ANSI Class-150 and Class-300 Max working Conditions: 40 kg/cm2 at 400 deg C VALVE STANDARD ANSI B 16.34 ,

Applications:
•Hot and Cold Water Applications
•Steam Applications
•Compressed Air Applications
•Chemical Fluids (Acidic and non-alkaline fluids)
•Oil Applications

FEATURES :

Leak proof isolation - Class 6 shut off achieved.

Durability - Piston unexposed to media

Absence of Gland & Seat

Maintenance friendly - Uniform sealing rings on both the sides & maintenance can be done without removing the valve from the pipe line. (On-line Maintenance)

User Friendly - It does not need Valve Key

The Only Scrap Free Valve

Self Lubricating

Self Cleaning

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