Piston Valve

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Piston Valve

Piston Valves

Size 2" to 24" (50 mm to 1800 mm)
ASME Class Class 150 and PN 10
Design Standard MSS SP 151


L&T Valves offers glandless Piston Valves for reliable long-term performance in steam, condensate as well as process lines.

The versatile valve can be used for both isolation and throttling applications, and is available with flanged, socket-weld and screwed ends.


Salient Features:

  • Large effective sealing area - Reliable shutoff
    (ANSI Leakage Class VI)
  • Glandless design - No leakage to atmosphere
  • Reinforced sealing rings and Belleville washers - Compensates for thermal expansions, Reliability
  • Sealing not affected by presence of dirt or any other impurities in the media
  • Online Serviceable - Sealing rings can be replaced without removing the valve from line
  • Long service life
  • Lower cost of ownership


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