Diaphragm valve - SW/BW | Zubi
Diaphragm valve - SW/BW | Zubi

Diaphragm valve - SW/BW | Zubi

The Diaphragm Valve - SW/BW by Zubi is a high-performance valve designed for precise flow control and shut-off applications. It features a flexible diaphragm that separates the flow stream from the closure element, ensuring a tight seal and preventing contamination. The valve is available with socket weld (SW) or butt weld (BW) end connections, providing versatility for various piping systems. Known for its durability and reliability, the Zubi diaphragm valve is suitable for use in industries such as pharmaceuticals, food and beverage, and chemical processing.

Description

Main Features

  • 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

Technical Data

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.