WTA® Handoperated Chlorine Valves Type EC11.35

WTA® Bellows Sealed Globe Valve compliant with Chlorine Institute Pamphlet 6 and Euro Chlor specification for liquid chlorine and dry chlorine gas applications.

Features And Benefits

  • Bellows anti-torque device with integrated position indicator for open and closed positions
  • Safety gland packing made of PTFE silk; gland follower with double O-ring seal to prevent ingress of water into the packing area
  • Metal back seat and stroke limiter
  • Protected multiple wall bellows made of 2.4819 / Hastelloy C276, designed for 10.000 cycles, installed beyond main flow area
  • Bridge and pillar design separates yoke from bonnet; pillars are bolted and secured with nuts
  • Bonnet flange in tongue and grooved design; bolting by stud bolts made of 1.7225 / A 320 Grade L7M with a nut at each end made of 1.7218 / A 194 Grade 7M; bonnet gasket with PTFE coating
  • Exchangeable disc with conical shape; sealing surface hardfaced with Stellite®6; body seat hardfaced with Stellite® 21

Technical Details


  • Low temperature carbon steel 1.6220 / LCB / LCC
  • Other materials are available upon special request


  • DN 25, 40, 50, 80, 100, 150 / NPS 1”, 1 ½”, 2”, 3”, 4”, 6”
  • Other sizes are available upon request


  • PN 40 and Class 300
  • Other pressure classes are available upon request


  • Straight type


  • Complete internals in 2.4819/Hastelloy C276 are available upon request


Liquid chlorine and dry chlorine gas applications


  • Technical Correspondents of the Euro Chlor organization
  • WTA valves are manufactured in compliance with Euro Chlor GEST Specifications and Chlorine Institute Pamphlet 6