Selection recommendations:
Class |
Rated pressure(MPa,20℃) |
Applicable Scenarios |
Typical materials |
Class 150 |
1.93 |
Civilian water supply, low-pressure steam pipelines, air conditioning systems |
WCB carbon steel, ductile iron |
Class 300 |
5.17 |
Medium and low pressure raw material transportation in petrochemical industry, pharmaceutical preparation |
WCB carbon steel, A351 CF8 stainless steel |
Class 600 |
10.34 |
High-pressure steam pipelines, feed to fractionating towers in oil refineries |
WC6 chrome-molybdenum steel, A182 F316 |
Class 900~2500 |
15.51~42.03 |
Hydrogenation reaction unit, high-pressure natural gas metering pipeline |
A182 F316L, Hastelloy C276 |
Application:
Petrochemical: Refinery catalytic cracking unit "Reaction feed regulating valve" (Class 600, WC6 chrome-molybdenum steel, high temperature resistance up to 400°C), fine chemical "Solvent metering pipeline valve" (Class 300, A351 CF8M stainless steel, corrosion resistant);
Power: Thermal power plant "Boiler feed water regulating valve" (Class 900, WC9 chrome-molybdenum steel, high pressure and high temperature resistance), Nuclear power plant "Coolant circulation pipeline valve" (Class 1500, A182 F316L, radiation corrosion resistant);
Pharmaceutical and food: Pharmaceutical factory "Drug liquid dispensing pipeline valve" (Class 150, 316L stainless steel + PTFE seal, easy to clean, no dead corners), Food factory "Syrup transfer regulating valve" (Class 150, Y-type structure, anti-clogging);
Urban pipeline network: Urban heating system "Residential heating inlet pressure regulating valve" (Class 150, WCB carbon steel, regulating household steam pressure).