J41H national standard manual carbon steel globe valve

J41H national standard manual carbon steel globe valve is suitable for cutting off or connecting pipeline media in various working conditions such as petroleum, chemical, pharmaceutical, fertilizer, and power industries with nominal pressure PN1.6~16MPa and working temperature -29~550 ℃. The driving methods include manual, gear transmission, electric, pneumatic, etc.
Application specifications
design and manufacturing
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GB/T12235
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Connection end size
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Structure length
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GB/T12221
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Flange size
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JB/T79
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Inspection and Testing
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JB/T9092
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Material Science
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carbon steel
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GB/T12229
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stainless steel
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GB/T12230
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alloy steel
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Q/ZB66
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Logo
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GB/T12220
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supply commodity
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JB/T7928
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Structural characteristics
1. Carefully selected materials, in compliance with relevant domestic and international standards, with a reasonable structure and beautiful appearance. 2. The sealing surface of the valve disc and seat is made of iron-based alloy or Stellite cobalt based hard alloy, which has good wear resistance, high temperature resistance, corrosion resistance, abrasion resistance, and long service life. 4. The valve stem has undergone quenching and surface nitriding treatment, providing excellent corrosion resistance and abrasion resistance. 5. Various piping flange standards and flange sealing surface types can be adopted to meet various engineering needs and user requirements. 6. The valve body material variety is complete, and the packing and gasket can be reasonably selected according to actual working conditions or user requirements, which can be suitable for various pressure, temperature, and medium working conditions. 7. The reverse seal is made by connecting the sealing seat with threads or welding austenitic stainless steel on the body, ensuring reliable sealing. The replacement of the packing can be carried out without stopping the machine, which is convenient and fast, and does not affect the operation of the system.
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Required parts materials and main purposes
valve body
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valve cover
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Valve flap
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sealing ring
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valve stem
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filler
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Applicable Medium
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Temperature (≤℃)
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WCB
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WCB+D507MO
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D577
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2Crl3
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Flexible graphite
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Water, oil, steam
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425
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ZGlCrl8Ni9Ti
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0Crl8Ni9Ti+ Stellite12
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Stellite6
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lCrl8Ni9Ti
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PTFE
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Nitric Acid
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200
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ZGlCrl8Ni2Mo2Ti
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CF8M+ Stellite12
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lCrl8Ni2Mo2Ti
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lCrl8Ni2Mo2Ti
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PTFE
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Phosphoric acid Alkali and mixed acid
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200
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ZG00Crl7Nil4M02
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CF3M+ Stellite12
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Stel1ite6
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316L
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PTFE
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Phosphoric acid Urea and ammonium solution
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200
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ZGlCr5MO
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ZGlCr5MO+ Stellite12
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Stel1ite6
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25Cr2Mo1VA
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Flexible graphite
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Water, oil, steam
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550
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