5
BLACOH Fluid Control
Temperature Limits
Operating temperatures are based on the maximum temperature of the wetted dampener components
only. Non-wetted dampener components may have a lower temperature limit. Temperature and certain
chemicals may reduce the maximum allowable working pressure (MAWP) of the dampener.
CAUTION! Plastic (non-metallic) body materials lose strength as temperature increases, which reduces
the maximum pressure sustainable by the material. All plastic materials must have an appropriate de-
rating factor applied when working at elevated temperatures above 73.4°F (23°C) to determine maximum
allowable working pressure (MAWP).
Elastomer
Materials
Temperature Limits
Applications
Aflas
0°F to +400°F
(-18°C to +204°C)
High temperature, petroleum based chemicals, strong acids and
bases.
Buna-N
+10°F to +180°F
(-12°C to +82°C)
Good flex life; use with petroleum, solvents and oil-based fluids.
FDA Buna-N
+10°F to +180°F
(-12°C to +82°C)
FDA-approved food grade; similar characteristics of regular Buna-N.
EPDM
-60°F to +280°F
(-51°C to +138°C)
Use in extreme cold; good chemical resistance with ketones,
caustics.
FDA EPDM
-50°F to +225°F
(-45°C to +107°C)
FDA-approved food grade; similar characteristics of regular EPDM.
Hypalon
-20°F to +275°F
(-29°C to +135°C)
Excellent abrasion resistance; good in aggressive acid applications.
Neoprene
0°F to +200°F
(-18°C to +93°C)
Good abrasion resistance and flex; use with moderate chemicals.
PTFE Diaphragm
+40°F to +220°F
(+4°C to +104°C)
Use with highly aggressive fluids.
PTFE Bellows
-20°F to +220°F (-29°C to +104°C)
Exclusive bellows design with excellent flex life; use with highly
aggressive fluids.
Santoprene
-20°F to +225°F
(-29°C to +107°C)
Excellent choice as a low cost alternative for PTFE in many
applications.
FDA Silicone
-20°F to +300°F
(-29°C to +149°C)
FDA-approved food grade material; for use in food and
pharmaceutical processing.
USP Class VI
Silicone
-20°F to +300°F
(-29°C to +149°C)
Pharmaceutical grade material; for use in food and pharmaceutical
processing.
Viton
®
-10°F to +350°F
(-23°C to +177°C)
Use in hot and aggressive fluids; good with aromatics, solvents,
acids and oils.
Non-Metallic
Body Materials
Temperature Limits
Applications
Acetal*
+32°F to +175°F
(0°C to +79°C)
Good flex life; low moisture sensitivity; high resistance to solvents
and chemicals.
CPVC
+32°F to +180°F
(0°C to +82°C)
Chlorinated PVC (CPVC): Good general chemical resistance; loses
strength as temperature rises.
Noryl
+32°F to +220°F
(0°C to +104°C)
Good resistance to acids and bases; good temperature stability.
Polypropylene*
+32°F to +175°F
(0°C to +79°C)
Good general purpose plastic; broad chemical compatibility at
medium temperatures.
PTFE
+40°F to +220°F
(+4°C to +104°C)
Use with highly aggressive fluids, high temperatures.
PVC
+32°F to +140°F
(0°C to +60°C)
Good general chemical resistance; loses strength as temperature
rises.
PVDF
+10°F to +200°F
(-12°C to +93°C)
Excellent resistance to most acids and bases; high temperatures.
* Conductive Acetal and Conductive Polypropylene available.
[T22E11_010]
Summary of Contents for SENTRY CIP
Page 10: ...9 BLACOH Fluid Control NOTES ...
