Shanghai Nainai Valve Manufactrue Co.,Ltd.
   
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   Add:No.87 Luojing Feiyun Road
   Baoshan District Shanghai
  PRODUCT  
Check Valve
Lift-Type Check Valve
Size: NPS 1/2"-36"
Pressure:  Class 150-1500
Material: 1/2"-2": A105,LF2,F11,F22,F5,F304,F316,F304L,F316L
                2"-36":WCB,LCB,WC6,WC9,C12,C5,CF8,CF3,CF3M,CF8M
Design & Manufacture Std.: API 6D,BS 1868,ASME B16.34
Face to Face Std.: API 6D,ASME B16.10,DIN 3202
Structure Type: Regular Pattern,Pressure Sealed Pattern,Damping   Pattern
Swing Check Valve
Design and Manufacture: Cast steel check valve to BS 1868, ASME B16.34 and API 6D;Forged steel check valve to API 602.
Inspection and Test: API 598 or API 6D.
End flange dimension: ASME B16.5(for NPS<=24);ASME B16.47 series B,API 605 or ASME B16.47 series A,MSS SP-44(for NPS>24).
Socket-weld dimension: ASME B16.11.
Face to face and end to end: ASME B16.10.
Flanged Swing Check Valve
Design and Manufacture: Cast steel check valve to BS 1868, ASME B16.34 and API 6D;Forged steel check valve to API 602.
Inspection and Test: API 598 or API 6D.
End flange dimension: ASME B16.5(for NPS<=24);ASME B16.47 series B,API 605 or ASME B16.47 series A,MSS SP-44(for NPS>24).
BW end dimension: ASME B16.25.
Socket-weld dimension: ASME B16.11.
Forged Swing Check Valve
Design and Manufacture: API 602.
Inspection and Test: API 598.
Socket-weld dimension: ASME B16.11.
End threads dimension: ASME B1.20.1.
Pressure-temperature ratings: ASME B16.34.
Forged Lift-Type Check Valve
Design and Manufacture: API 602.
Inspection and Test: API 598.
Socket-weld dimension: ASME B16.11.
End threads dimension: ASME B1.20.1.
Pressure-temperature ratings: ASME B16.34.
Wafer Dou-disc Swing Check Valve
对夹旋启式止回阀适用于公称压力PN1.0MPa～42.0MPa、Class150～2500；公称通径DN15～1200mm、NPS1/2～48；工作温度-196～540℃的各种管路上，用于防止介质倒流。
通过选用不同的材质，可适用于水、蒸汽、油品、硝酸、醋酸、强氧化性介质及尿素等多种介质。
 
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Copyright @ 2005 Shanghai Nainai Valve Manufactrue Co.,Ltd.    ADD: No.87 Luojing Feiyun Road Baoshan District Shanghai City
Telephone: +86-021-66876198 / 56879782   Sales Tel: +86-021-56874084 / 56871325   Email:nainai@nainaivalve.com
Service Tel: +86-021-56878077 / 56873724      Fax: +86-021-56878087銆
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