different body and bonnet material applicable medium temperature is as follows:

highest use of gray cast iron valve body, valve cover suitable medium temperature is 250 ℃.

malleable cast iron valve body, valve cover applicable highest use temperature is 300 ℃.

nodular cast iron valve body, valve cover suitable highest use temperature is 350 ℃.

high silicon cast iron valve body, valve cover applicable highest use temperature is 120 ℃.

carbon steel valve body, valve cover applicable highest use temperature of 425 ℃ ( Forgings 16 mn, 30 mn can reach 450 ℃) 。

Cr5Mo steel valve body, valve cover suitable highest use temperature is 550 ℃.

1 cr18ni9ti and Cr18Ni12Mo2Ti stainless steel Industrial Valves body, Industrial Valves cover applicable highest use temperature is 600 ℃.

cu alloy valve body, valve cover suitable highest use temperature is 200 ℃.

titanium valve body, valve cover applicable highest use temperature is 300 ℃.

plastic valve body, valve cover for highest use of medium temperature: 100 ℃ nylon, chlorinated polyether 100 ℃, 60 ℃ polyvinyl chloride (PVC), polytrifluorochloroethylene - 60 ~ 120 ℃, ptfe - 180~150℃。

rubber diaphragm valve depending on the different types of rubber, natural rubber 60 ℃; Nitrile rubber, neoprene, 80 ℃; Fluorine rubber (150 ℃.

valve lining rubber, plastic, rubber, plastic and heat-resistant properties shall prevail.

ceramic and glass valve, its poor heat resistance urgent degeneration, commonly used in below 90 ℃.

enamel valve and heat-resistant properties subject to the conditions of sealing ring material, high medium temperature over 150 ℃.

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can be used in a wide variety of ways.
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