what is the applicable medium temperature for different valve body and bonnet materials? -金沙集团1862cc

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what is the applicable medium temperature for different valve body and bonnet materials?

release time:2020/7/17

the applicable medium temperature for different valve body and bonnet materials is as follows:

the maximum medium temperature for gray cast iron body and bonnet is 250℃.

malleable iron body, valve cover applicable medium maximum service temperature is 300℃.

ductile iron valve body, bonnet suitable for the medium maximum temperature of 350℃.

high silicon cast iron body, bonnet suitable for the medium maximum temperature of 120℃.

the highest service temperature for carbon steel valve body and bonnet is 425℃ (forgings 16mn and 30mn up to 450℃).

cr5mo alloy steel body, valve cover suitable for the medium maximum temperature of 550℃.

1cr18ni9ti and cr18ni12mo2ti stainless steel body and bonnet suitable for the medium maximum temperature of 600℃.

copper alloy valve body, bonnet suitable for the medium maximum temperature of 200℃.

titanium valve body, valve cover applicable medium maximum temperature is 300℃.

the highest temperature of the medium suitable for plastic valve body and bonnet: nylon 100℃, chlorinated polyether 100℃, polyvinyl chloride 60℃, polytrifluoroethylene -60~120℃, polytetrafluoroethylene -180~150℃.

rubber diaphragm valve depends on different types of rubber, natural rubber 60℃;nitrile butadiene rubber, neoprene 80℃;fluororubber 150℃.

valve lining with rubber, plastic, rubber, plastic temperature resistance shall prevail.

ceramic and glass valves, their temperature resistance and rapid change difference, generally used below 90℃.

enamel valve temperature resistance is limited by seal ring materials, the highest temperature of the medium over 150℃.


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group address:no.52, lane 58, lushen road, zhaoxiang town, qingpu district, shanghai
group phone: 86-021-59755666
hotline: 86-021-69755076   69755027
            86-021-69755026   57339828
fax: 86-021-69755075   
factory address:no. 1798, wang wei east road fengjing development zone jinshan district shanghai city
金沙集团1862cc copyright © shen gao valve group co., ltd.
www.shengao-valve.com
record number:no. 14017677, shanghai icp
technical support:
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