双联球阀
双相不锈钢截止阀的微观结构由奥氏体相和铁素体相混合组成。因此,双相钢同时具有奥氏体不锈钢和铁素体不锈钢的特性。.
双相不锈钢截止阀使用的不锈钢比常用的不锈钢阀门牌号(即 304 阀门和 316 阀门)具有更强的耐腐蚀性。双相不锈钢阀门广泛应用于化工、海水淡化、造船、石化、石油和天然气等行业。.
描述
Applications Industry Of Duplex Globe Valves
- Pharmaceutical Equipment
- Chemical Equipment
- Sea Water Equipment
- Heat Exchangers
- Condensers
- Pulp and Paper Industry
- Off-Shore Oil Drilling Companies
- Power Generation
- Petrochemicals
- Gas Processing
- Specialty Chemicals
- Pharmaceuticals
Cast steel duplex globe valve is an excellent valve to use for shut-off service and shall be installed in the proper direction as flow arrow marked in the body. Unless other specific, globe valve shall be used for uni-directional seal.
Grades Of Duplex Globe Valves
Duplex materials are always available with S31803(F51), S32750(F53), S32760(F53), S32205(F60), S32550(F61) etc with relevant casting code ASTM A890/A995 1A, 2A, 3A, 4A, 5A, 6A, 1B, 1C, CD4MCu, CD4CuN, CD3MCuN, CE8MN, CD6MN, CD3MN, CE3MN, CD3MWCuN.
Advantages of Duplex Globe Valve
- With a simple structure, duplex globe valves can be manufactured easily.
- It is convenient to maintain the surface and property of a duplex globe valve.
- The duplex globe valve has greater corrosion resistance in stress corrosion cracking.
- At a rather lower price, duplex globe valves have low friction between the sealing surface and long life.







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