API Pressure sealing gate valve

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API Pressure sealing gate valve
Posting date : Aug 07, 2012
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Free Member Scince Dec 28, 2011
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84-
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Body and Bonnet Connection The body and bonnet of Class 150~Class 900 gate valves are usually bolted bonnet design.And Class 1500~Class 2500 gate valves are usually of pressurized seal design. Belleville Spring Loaded Packing Impacting System If being requested by the customer ,the Belleville spring loaded packing impacting system can be adopted for enhancing the durability and reliablity of the packing seal. Gasket of Cover Flange Carbon steel or stainless steel+flexible graphite combined gasket is used for Class 150 gate valve;Stainless steel+flexible graphite wounded gasket is used for Class 300 gate valve;Stainless steel+flexible graphite wounded gasket is used for Class 600 gate valve ,and ring joint gasket is also optional for Class 600 gate valve;Ring Joint gasket is used for Class 900 gate valve;Pressurized seal design is used for Class 1500~Class 2500 gate valve.

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