Pressure seal flexible wedge gate valves

Overview

Category: Gate, globe, and check valves
Product line: Pressure seal (forged and cast steel) valves


  • Size range(s)
    NPS 2 - 60 (DN 50 -1500)
    Pressure rating
    ASME Classes
    600 - 4500
    Standard connections
    Socket weld, Butt weld

Features and benefits

The Velan pressure seal flexible wedge gate valve was pioneered by Velan in 1960. It has a large flexibility index up to 0.035” (0.89 mm) within normal closing torques and allowable stresses to compensate for seat distortions caused by piping loads, thermal and pressure fluctuations, seal-welding of seats and cooling down of a valve closed hot. It is the ideal choice for critical power plant applications where valves are subject to frequent start-ups and shut-downs.

  • Velan's proven pressure seal design.
  • Velan flexible wedge offers superior tightness of seats and freedom from sticking.
  • Wedge guiding minimizes seat rubbing and scuffing resulting in long cycle life.
  • Designed to ASME B16.34.
  • Live-loaded bonnet bolting maintains the required bonnet seal regardless of pressure-temperature fluctuations.
  • Body made of superior strength forgings and optional cast steel.
  • Velan stem seal offers tight seal with little to no maintenance over long periods of time.
  • Optional live-loading of packing.
  • Non-rotating stem requires lower operating torque.
  • Hardfaced seating faces resist erosion.
  • Designed to ASME B16.34.
  • Other sizes and pressure classes available. Contact the company for specifications. 

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