Pneumatic valve material pressure and temperature table

pneumatic valve material pressure and temperature table gray cast iron:
gray cast iron is suitable for the nominal pressure PN or less. MPa, the temperature was minus ℃ ~ ℃ water, steam, air, gas, oil medium, etc. Gray cast iron used brands are: HT, HT, HT, HT.

malleable iron:
is suitable for the nominal pressure PN or less. MPa, the temperature is - ~ ℃ water, steam, air and oil medium, commonly used brands are: KTH - k - k - 。 Ductile iron:


is suitable for the PN or less. MPa, the temperature was minus ~ ℃ water, steam, air, oil medium, etc. Commonly used brands are: QT - QT - QT - 。
in view of the current domestic technology level, GeChang is uneven, the user is often difficult to test again. According to the experience, it is suggested that the PN or less. MPa, pneumatic valve or adopt steel pneumatic valve for safety.

acid of high silicon ductile iron:
is suitable for the nominal pressure PN or less. MPa, corrosion medium temperature is lower than ℃.

carbon steel:
is suitable for the nominal pressure PN or less. MPa, the temperature was minus ~ ℃ water, steam, air, hydrogen, ammonia, nitrogen and oil products such as medium. Commonly used brand with WC, WCB, mid-december and high-quality steel, Mn, and the low alloy structural steel.

copper alloy:
is suitable for the PN or less. MPa of air, water, oxygen, water, oil, such as medium, and temperature - ~ ℃ steam medium, commonly used brand for ZGnSnZn ( Tin bronze) H, Hpb - （ Brass) 、QAZ- 、QA- ( Aluminum bronze.

high temperature copper:
is suitable for the nominal pressure PN or less. MPA, temperature ℃ or less of the steam and oil products. Commonly used brand ZGCrMo, CrM. ZGCrMoV ZGGrMoV, CrMoV, WC, WC, etc. Specific use must, in accordance with pneumatic valve pressure and temperature of the norms.