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Western Hemisphere |
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USA, Houston, Hempstead |
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USA, Houston, Eldridge |
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USA, New Orleans |
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Brazil, Macaé |
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Eastern Hemisphere |
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Aberdeen, Scotland |
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England, London |
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England, Great Yarmouth |
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Norway, Stavanger |
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Denmark, Esbjerg |
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Netherlands, Beverwijk |
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Nigeria, Lagos |
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Nigeria, Port Harcourt |
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Egypt, Cairo |
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Egypt, Alexandria |
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Asia-Pacific |
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Singapore |
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Malaysia, Kuala Lumpur |
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Indonesia, Jakarta |
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Australia, Perth |
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Australia, Darwin |
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China, Shekou |
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China, Tianjin |
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DH AND DHS SERIES GATE VALVES
The Dril-Quip DH and DHS Series Gate Valves are bi-directional sealing gate valves designed to offer maximum reliability and provide extended service in the field. This has been accomplished by incorporating field-proven gate-to-seat and seat-to-body, metal-to-metal sealing technology and a non-elastomeric stem packing design.
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Gate-to-seat, metal-to-metal seal and two independent seat-to-body metal-to-metal sealing surfaces |
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Hard-faced sealing surfaces provide long seal life |
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Low pressure sealing ensured by pressure-energized Teflon® face seal and spring-energized Teflon lip seal |
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Non-rising stem and heavy duty bearings ensure easy open and close functions or even while valve is under full pressure |
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Selective metal-to-metal stem back-seat allows stem replacement while valve is under pressure |
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Grease port located behind stem's backseat to verify the backseat seal |
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Unique stem seal provides multiple sealing points along the length of the stem packing |
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Close-fitting gate guides minimize amount of debris that can enter valve body |
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Available with the following end connections: clamp, flanged, threaded |
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Components of a pressurized valve can withstand a half-hour burn and cooldown and one-time operation without significant leakage |
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The Stem packing is made up of high temperature Teflon and metal backup ring that can withstand the heat of a half-hour burn. |
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Field-proven performance |
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