Operating Parameters; Temperature Range; Seat Options; Pressure Ratings - Waukesha Cherry-Burell W75RS PMO Operation And Maintenance Manual

Double seat mix proof
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Waukesha Cherry-Burrell

Operating Parameters

Seat Options

Pressure Ratings

August 2008

Temperature Range:

Recommended operating temperature is determined by the material used for the
seals. No special precautions are required for applications within a temperature
range of 32°F to 180°F (0°C to 82°C).
For applications above 190°F (88°C), clearances can be affected by excessive
thermal expansion when the valve is installed in compact fabrications or
manifolds. Valve bodies have thicker cross-sections than tubing, but thermal
expansion can affect clearances in interconnecting piping sections.
This valve is NOT designed to be used under aseptic or near aseptic conditions
and temperatures.
If operating below 32°F (0°C):
Ensure that the control air has an appropriately low dew point.
Protect the valve stems from icing to ensure a long working life for the valve
stem seals.
Solenoid valves should not be used in the control module in room environments
below 32°F (0°C) and over 180°F (82°C), as their function cannot be guaranteed.
In those cases, install the solenoid valves in a separate solenoid cabinet.
Seal Material:
Fluorelastomer (FKM)
Thermal Range
32°F to 375°F (0°C to
of Application:
190°C)
Chemical
Silicone oil and grease
Resistance:
Aliphatic, chlorinated, and
Contact WCB
aromatic hydrocarbons
Application
Oils and fats
Engineering for
other fluid
Ozone, aging, and weather
compatibility.
resistant
Not compatible
Superheated steam
with:
Formic and acetic acids
SEAT TYPE
Tri Ring (TR) -
Upper
Radial - Lower
For higher temperature applications than those listed, please consult the factory.
*Operating conditions such as flow rate and pressure must be considered when
operating near the maximum temperature rating.
Operating Pressure: 1-1/2"- 3" sizes = 150 psi (10.3 bar); 4" size = 90 psi (6.2 bar)
Holding Pressure: All sizes = 150 psi (10.3 bar)
95-03076
Introduction
EPDM
0°F to 275°F (-18°C to
135°C)
Hot water and steam up to
275°F (135°C)
Many organic and
inorganic acids
Cleaning agents, soda and
potassium alkalis
Silicone oil and grease
Many polar solvents
(alcohols, ketones, esters)
Ozone, aging, and weather
resistant
Mineral oil products
(oils, greases, and fuels)
MATERIAL / MAXIMUM TEMP.
Operation 280°F (137°C)
EPDM
Sterile 275°F (135°C)
Operation 350°F (176°C)
FKM
Sterile (Consult Factory)
Page 7

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