straight or weir valve

DIAPHRAGM VALVES

SW/BW versions – STRAIGHT or WEIR

Diaphragm bidirectional monoblock casted body with weld ends and bolted bonneted. Welded version available in straight (T85) or weir (T100) type. Rubber line options No available.

Applications: Pulp and Paper, Power generation, Water and Waste Water, Powder and Bulk Handling, Mining, Chemical, Food and Beverage.

  • Monoblock body, one piece cast.
  • Socket Welding (SW) and Butt Welding (BW) options.
  • 100% tightness performance guaranteed.
  • The valve can be installed in any position.
  • High strength woven Diaphragm reinforced design.
  • Bolted bonnet design.
  • Easy maintenance: Three part design (Body, diaphragm and actuator) allows maintenance and actuator retrofitting without removing the valve body from the pipeline.
  • Bidirectional shut off design.
DIRECTIVAS:
  • DIR 2006/42/CE (machinery)
  • DIR 2014/68/EU (PED) Fluid Group 1(b), 2 (Cat. I. mod. A)
  • DIR 2014/34/EU (ATEX) Area 2&22
FLANGE CONNECTION
  • SW (Socket Welding)
  • BW (Butt Welding)
SIZES & PRESSURES
  • Manual straight valves:
  • DN20 to DN50: 8 bar
  • DN65: 6 bar
For actuated valves, please refer to the appropriate datasheets.
TIGHTNESS
  • Watertight
MATERIALS BODY GGG50, CF8M (AISI316) Others on request. DIAPHRAGM
  • Butyl (BU) Blue
  • Aliment butyl (BUA)
  • Reinforced butyl (BUR)
  • Natural rubber (BL) White
  • Natural aliment rubber (BLA)
  • EPDM (EP)
  • Hypalon (HY) Green
  • Neoprene (NE) Red
  • Nitrile (NI) Yellow
  • Silicone (SI)
  • Viton (VI) Orange
  • PTFE (TE) (availabe in weir version)
*The abbreviations or the identification colours are in the flap of the diaphragm. *The pneumatic actuator diaphragm made in Natural rubber (BL). BONNET GG25 Others on request.
ACTUATORS Manual, air open actuator, air to close actuator, double acting actuator, electric, gear box.
ACCESSORIES AND OPTIONS Position indicators, switches, solenoid valves, padlocks, mechanical limit switches, positioner 4/20mA.

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