
August 2008
95-03076
Page 7
Waukesha Cherry-Burrell
Introduction
Operating Parameters
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)
EPDM
Thermal Range
of Application:
32°F to 375°F (0°C to
190°C)
0°F to 275°F (-18°C to
135°C)
Chemical
Resistance:
Contact WCB
Application
Engineering for
other fluid
compatibility.
Silicone oil and grease
Hot water and steam up to
275°F (135°C)
Aliphatic, chlorinated, and
aromatic hydrocarbons
Many organic and
inorganic acids
Oils and fats
Cleaning agents, soda and
potassium alkalis
Ozone, aging, and weather
resistant
Silicone oil and grease
Many polar solvents
(alcohols, ketones, esters)
Ozone, aging, and weather
resistant
Not compatible
with:
Superheated steam
Mineral oil products
(oils, greases, and fuels)
Formic and acetic acids
Seat Options
SEAT TYPE
MATERIAL / MAXIMUM TEMP.
Tri Ring (TR) -
Upper
EPDM
Operation 280°F (137°C)
Sterile 275°F (135°C)
Radial - Lower
FKM
Operation 350°F (176°C)
Sterile (Consult Factory)
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.
Pressure Ratings
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)
Содержание Cherry-Burell W75RS PMO
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