Global Website


Asia - Pacific

Waukesha Cherry-Burrell

Global - English

Asia - Pacific

Throttling/Regulating Single Seat Valves - W68/W88/W98 Series

  • Throttling/Regulating Valve photo


Image 1of 1
  • Throttling/Regulating Valve photo
video player
Product Type:

single seat valves

This modular family of throttling or pressure control valves are the ultimate in easy cleaning, high pressure, low maintenance design.
Our Partner Locator allows you to search distributors within your region for product inquiries
Where to Buy

A modular family of "throttling or pressure control" valves that are the ultimate in: easy cleaning, high pressure, low maintenance design. With 11 standard bodies, 12 different actuators, 4 stem types, flush or standard adaptor, and a wide range of control tops, the valves can be configured to precisely fit any application.

  • Bodies machined from solid bar 316L with laser welded ports
  • Stems available with low and high flow Cv values
  • Seat ring inserts for very low Cv in 1" and 1½" (25mm and 38mm) bodies
  • Standard "S" clamps used to connect adaptors and bodies
  • Adaptor and Lower Bearing Carrier with inlet and discharge flush connections
  • High pressure capability
  • Seal options – Tri-Ring (FKM or EPDM for complete shut-off) or Metal Plug
  • Open yoke 3A design
  • Reverse (R) or standard plug design
  • Pneumatic and electropneumatic positioners available

3A Certification LogoCE Certification LogoISO9001 Certification Logo

  • W68 Series – Throttling
  • W88 Series – Aseptic Stem Flush Throttling
  • W98 Series – Aseptic Diaphragm Throttling
  • W682 or W882 Series – Divert Throttling
  • W685 or W885 Series – Non-Slamming Divert Throttling

Pneumatic Moore positioners - Uses 3-15 psi (.20-1.03 bar) pneumatic control signal and plant air supply to drive the seat plug into a certain position.

  • Direct acting (as input increases, supply air increase)
  • Reverse acting (as input increases, supply air decreases)
  • Cost effective way to control the valve

Electropneumatic Bürkert positioners - Uses a 4-20mA electronic feedback signal between the valve stem sensor and a solenoid in the control top which adds or vents air into the actuator to move the plug seat up or down depending on the desired position.

  • Positioner attaches right to the valve
  • Includes all of the controlling functions within the unit
  • Long service life
  • Also available with bus communication (DeviceNet, Profibus) and additional control options

English Videos

W68 Series Single Seat Valve Operation - Open and Closed Seat Positions


Sanitary Control Valve Maintenance Burkert Positioner