Blacoh Sentry XPB 설치 및 운영 매뉴얼 - 페이지 5
{카테고리_이름} Blacoh Sentry XPB에 대한 설치 및 운영 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. Blacoh Sentry XPB 13 페이지. Pressure dampeners
페이지 인쇄Temperature 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 derating factor applied when working at elevated temperatures above 73.4°F
(23°C) to determine maximum allowable working pressure (MAWP).
Elastomer
Temperature Limits
Materials
Aflas
0°F to +400°F
Buna-N
+10°F to +180°F
FDA Buna-N
+10°F to +180°F
EPDM
-60°F to +280°F
FDA EPDM
-50°F to +225°F
Hypalon
-20°F to +275°F
Neoprene
0°F to +200°F
PTFE Diaphragm
+40°F to +220°F
PTFE Bellows
-20°F to +220°F
Santoprene
-20°F to +225°F
FDA Silicone
-20°F to +300°F
Viton
-10°F to +350°F
®
Non-Metallic
Temperature Limits
Body Materials
Acetal*
+32°F to +175°F
CPVC
+32°F to +180°F
Noryl
+32°F to +220°F
Polypropylene*
+32°F to +175°F
PTFE
+40°F to +220°F
PVC
+32°F to +140°F
PVDF
+10°F to +200°F
* Conductive Acetal and Conductive Polypropylene available.
Maximum allowable working pressure is reduced slightly for metal bellows at temperatures above 400°F (204°C). Apply an appropriate
derating factor to determine maximum allowable working pressure (MAWP).
Metal Bellows
Temperature Limits
SS w/Gaskets*
-200°F to +800°F
* Contact Blacoh for more information regarding temperatures below -200°F (-129°C).
BLACOH Industries
Applications
(-18°C to +204°C)
High temperature, petroleum based chemicals, strong acids and bases.
(-12°C to +82°C)
Good flex life; use with petroleum, solvents and oil-based fluids.
(-12°C to +82°C)
FDA-approved food grade; similar characteristics of regular Buna-N.
(-51°C to +138°C)
Use in extreme cold; good chemical resistance with ketones, caustics.
(-45°C to +107°C)
FDA-approved food grade; similar characteristics of regular EPDM.
(-29°C to +135°C)
Excellent abrasion resistance; good in aggressive acid applications.
(-18°C to +93°C)
Good abrasion resistance and flex; use with moderate chemicals.
(+4°C to +104°C)
Use with highly aggressive fluids.
(-29°C to +104°C)
Exclusive bellows design with excellent flex life; use with highly aggressive fluids.
(-29°C to +107°C)
Excellent choice as a low cost alternative for PTFE in many applications.
(-29°C to +149°C)
FDA-approved food grade material; for use in food and pharmaceutical processing.
(-23°C to +177°C)
Use with hot and aggressive fluids; good with aromatics, solvents, acids and oils.
Applications
(0°C to +79°C)
Good flex life; low moisture sensitivity; high resistance to solvents and chemicals.
Chlorinated PVC (CPVC): Good general chemical resistance; loses strength as
(0°C to +82°C)
temperature rises.
(0°C to +104°C)
Good resistance to acids and bases; good temperature stability.
(0°C to +79°C)
Good general purpose plastic; broad chemical compatibility at medium temperatures.
(+4°C to +104°C)
Use with highly aggressive fluids, high temperatures.
(0°C to +60°C)
Good general chemical resistance; loses strength as temperature rises.
(-12°C to +93°C)
Excellent resistance to most acids and bases; high temperatures.
Applications
Excellent for applications pumping frigid and molten fluids, outdoor applications in
(-129°C to +426°C)
extreme temperatures, chemical applications where elastomers or PTFE would fail.
[T22E11_030]
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