
Waukesha Cherry-Burrell Brand W71/W72RS Sch. 5 Mix Proof Valves
Introduction
08/2018
95-03091
Page 15
Seat Options
Seat Type
Material / Maximum
Temp.
Tri Ring (TR)
Compression Seal:
Upper on W71/W72RS
Lower on W71
EPDM
Operation:
275°F (135°C)
Sterile:
275°F (135°C)
or
Operation:
375°F (190°C)
Sterile:
Consult Factory
Radial: Lower on
W72RS
FKM
Seat Ring Insert
Compression Seal
Upper on W71
Lower on W71
Tef-
Flow™ P
(gray in
color)
Operation 280°F
(137°C)
For higher temperature applications than those listed, please con-
sult the factory.
Operating conditions such as flow rate and pressure must be con-
sidered when operating near the maximum temperature rating.
Contact the Factory for FFKM.
Pressure Ratings
Valve Size
Maximum Pressure at 70°F (21°C)
2" - 4"
150 psi (10.3 bar)
6"
Contact factory
W70 Series Mix Proof
Actuator Air Volumes
Non-Seat Lifting Actuators
Size (dia.)
Open
2" - 4"
0.039 ft³ (0.0011 m³)
6"
0.055 ft³ (0.0016 m³)
Seat Lifting Actuators
Size (dia.)
Open
Upper Seat
Clean
Lower Seat
Clean
2" - 4"
0.07 ft³
(0.002 m³)
0.005 ft³
(0.0001 m³)
0.08 ft³
(0.002 m³)
6"
0.055 ft³
(0.0015 m³)
0.011 ft³
(0.0003 m³)
0.011 ft³
(0.0046 m³)