The media temperature for different valve body and bonnet materials is as follows. The maximum working temperature of the medium for gray cast iron body and bonnet is 250 °C.
The applicable medium for the malleable cast iron body and bonnet is 300°C.
Ductile iron body and bonnet are suitable for media up to 350 °C.
The high silicon cast iron body and bonnet are suitable for media up to 120 °C.
Carbon steel body and bonnet are suitable for media up to 425 ° C (forging 16Mn, 30Mn up to 450 ° C).
The maximum service temperature of the medium for the valve body and bonnet of Cr5Mo alloy steel is 1550 °C.
1Cr18Ni9Ti and Cr18Ni12Mo2Ti stainless steel "target=_blank> stainless steel valve body, bonnet applicable medium maximum operating temperature is 600 °C.
Copper alloy valve body and bonnet are suitable for media up to 200 °C.
Titanium body and bonnet are suitable for media up to 300 °C.
Medium for plastic valve body and bonnet Maximum use temperature: nylon 100 ° C, chlorinated polyether 100 ° C, polyvinyl chloride 60 ° C, polychlorotrifluoroethylene -60 ~ 120 ° C, polytetrafluoroethylene - 180 ~ 150 ° C .
Rubber diaphragm valves depend on the type of rubber, natural rubber 60 ° C; nitrile rubber, neoprene 80 ° C; fluoro rubber 150 ° C.
When the valve lining is made of rubber or plastic, the temperature resistance of rubber and plastic shall prevail.
Ceramic and glass valves, which have poor temperature and temperature resistance, are generally used below 90 °C.
The temperature resistance of enamel valves is limited by the material of the seal, which exceeds 150 ° C at the highest medium temperature.
Http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
The applicable medium for the malleable cast iron body and bonnet is 300°C.
Ductile iron body and bonnet are suitable for media up to 350 °C.
The high silicon cast iron body and bonnet are suitable for media up to 120 °C.
Carbon steel body and bonnet are suitable for media up to 425 ° C (forging 16Mn, 30Mn up to 450 ° C).
The maximum service temperature of the medium for the valve body and bonnet of Cr5Mo alloy steel is 1550 °C.
1Cr18Ni9Ti and Cr18Ni12Mo2Ti stainless steel "target=_blank> stainless steel valve body, bonnet applicable medium maximum operating temperature is 600 °C.
Copper alloy valve body and bonnet are suitable for media up to 200 °C.
Titanium body and bonnet are suitable for media up to 300 °C.
Medium for plastic valve body and bonnet Maximum use temperature: nylon 100 ° C, chlorinated polyether 100 ° C, polyvinyl chloride 60 ° C, polychlorotrifluoroethylene -60 ~ 120 ° C, polytetrafluoroethylene - 180 ~ 150 ° C .
Rubber diaphragm valves depend on the type of rubber, natural rubber 60 ° C; nitrile rubber, neoprene 80 ° C; fluoro rubber 150 ° C.
When the valve lining is made of rubber or plastic, the temperature resistance of rubber and plastic shall prevail.
Ceramic and glass valves, which have poor temperature and temperature resistance, are generally used below 90 °C.
The temperature resistance of enamel valves is limited by the material of the seal, which exceeds 150 ° C at the highest medium temperature.
Http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
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