Operating Parameters; Seal Compatibility - SPX FLOW W70 Series Instruction Manual

Introduction

Operating Parameters

Page 10
Waukesha Cherry-Burrell
Temperature Range:
No special precautions are required for applications within a tem-
perature 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.
Operating valves above 180°F (82°C) could result in shortened
life of elastomers and/or erratic valve operation.
If operating below 32°F (0°C):
• Control air must have an appropriately low dew point.
• Valve stems must be protected from icing to ensure long
working life for valve stem seals.
Solenoid valves may not be used in the control module in room
environments below 32°F (0°C) and over 140°F (60°C), as func-
tion cannot be guaranteed.

Seal Compatibility

Table 1: Seal Compatibility for FKM/EPDM Seals
Thermal Range
of Application *
Chemical
Resistance
Not compatible
with
* NOTE: The temperature listed is the rating for the elastomer
only, in static condition.
Contact SPX FLOW Application Engineering for other fluid
compatibility.
FKM and EPDM seals comply with FDA regulations.
95-03087
®
Brand W70 Series Mix Proof Valves
Fluorelastomer
(FKM) Seals
32°F to 375°F * 0°F to 275°F *
(0°C to 190°C) (-18°C to 135°C)
Silicone oil and grease Silicone oil and grease
Ozone, aging and Ozone, aging and
weather resistant weather resistant
Oils and fats Hot water and steam
up to 275°F (135°C)
Aliphatic, chlorinated Many organic and
and aromatic inorganic acids
hydrocarbons
Cleaning agents, soda
and potassium alkalis
Many polar solvents
(alcohols, ketones,
esters)
Superheated steam Mineral oil products
(oils, greases and
Formic and acetic
fuels)
acids
EPDM Seals
10/2023