Pressure Seal Flexible Wedge Gate Valves

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.