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Double-Bellows Seal Valves

Mon, 07/19/2010 - 1:14pm

Double length bellows from ConvalConval now offers a complete line of single and double bellows seal valves. The new double length bellows allow for the same zero emissions as the reliable single bellows, with over double the Cv in the same pipe size. These valves are ideal for applications where packed valves may not reliably contain light gases or hazardous system fluids, due to leakage in the stem/packing seal area or stuffing box wall/packing seal area. The valves also:

  • Meet all requirements of MSS SP-117.
  • Come in 1/2" through 4" sizes, in Y, T and angle configurations, through ASME/ANSI Class 2500.
  • Use the following standard materials: carbon steel SA105; chrome-moly SA182-F22, F91; stainless steel SA182-F316, F316L and F347.
  • Have optional electric, pneumatic and hydraulic actuators; open, closed or both locking devices; single or dual limit switches; stem shroud; position indicator; and leak-off port.

www.conval.com

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