Relief Valves

Relief Valves - Manually Adjustable - 60R Series by Waukesha Cherry-Burrell

Relief Valves - Manually Adjustable - 60R Series

Versatile, manually adjustable relief valve for pipeline protection. Durable, compact, and easy to operate.

  • Manually adjustable, lockable cap for setting the relief pressure
  • 316L sanitary construction with No. 4 internal polish
  • Choice of seats: PTFE O-Ring or metal
  • Choice of spring pressures: 50 lb. (23 kg), 100 lb. (45 kg) or 300 lb. (136 kg)
  • Choice of body styles: single outlet "T" style or cross body
  • Connections: S-Line, Q-Line, Bevel Seat or Weld
  • Connection sizes: 1½" or 2" (38 mm or 51 mm)

Relief Valves - Air Vent - 40CF-AR Series

Relief Valves - Air Vent - 40CF-AR Series

For installation on pump suction lines, the 40CF-AR Air Vent Valve is designed to operate as a CIP return air relief, and operates against either vacuum or positive pressure. For proper operation, the valve should be mounted vertically.

  • The 40CF-AR is available in 1" - 4" (25mm - 102mm) sizes
  • S-Line connections are standard. Other connections are available on request
  • The 40CF-AR has a polypropylene ball that acts between the upper and lower machined seats.
  • The valve body is machined stainless steel, either 304 or 316
  • Buna or FKM gaskets

Over-Pressure Relief Single Seat Valves - WR60/WR80 Series by Waukesha Cherry-Burrell

Enhance your pump with an external over-pressure relief valve. If pump discharge pressure exceeds the set cracking pressure, the valve will open to a relief path.

The Adjustable-Spring actuator lets you set the desired relief cracking pressure right at the valve by simply turning the adjustment screw (see graphics above). Three diameters are available: 4", 5" and 6" (102mm, 127mm and 152mm) for both air-to-raise (AR) on 1.5" – 4" (38mm - 102mm) W61 valves and air to lower (AL) on 2" - 4" (51mm - 102mm) W63 valves. Tef-Flow PEEK™ or metal seats are required for strength and durability.

For clean-in-place applications (CIP), a piston in the actuator allows opening of the valve without having to over pressure it. After relieving or CIP is complete, the valve reseats in place.


Our Manufacturers

Main Office

Liquid Process Equipment
W356S9050 Godfrey Lane
Eagle, WI 53119

Phone: (262) 594-3790
Fax: (262) 594-3792


Service Center

Liquid Process Equipment
N177C Speedway Lane
Kaukauna, WI 54130

Phone: (920) 766-7110
Fax: (920) 766-7140

More information about our service and support.

Product Stream

Relief Valves - Air Vent - 40CF-AR Series
Sample Valves - W30 Series
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