Specialty Valves

The Dual-Connected Sample Gate Valve

A wedge gate valve device for cutting off pipeline pressure is designed at both ends of the dual-connected samplie gate valve. The middle part of the valve body is designed as a square shape. The gate valve, needle valve, and sampling port are designed on the four sides of the square. The use of three-dimensional space is reasonably reduced to shorten the structure length required by the valve body design. It is possible to operate under three different pressures (high pressure, low pressure and no pressure) during the pipeline sampling operation by switching gate valves at both ends.…
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Product Description
A wedge gate valve device for cutting off pipeline pressure is designed at both ends of the dual-connected samplie gate valve. The middle part of the valve body is designed as a square shape. The gate valve, needle valve, and sampling port are designed on the four sides of the square. The use of three-dimensional space is reasonably reduced to shorten the structure length required by the valve body design. It is possible to operate under three different pressures (high pressure, low pressure and no pressure) during the pipeline sampling operation by switching gate valves at both ends.
Features & Benefits

Gate valve at the both ends and needle valve of the dual-connected samplie gate valve retain the advantages of 

general gate valve and needle valve. When sampling, the medium pressure of the sampling port can be 

rationally selected according to different requirements, and the safety is higher. The valve body adopts the 

integrated design, the layout of double gate valve, needle valve and sampling port is reasonable, the structure is 

compact, and the installation space does not need to be too large. The sampling port can replace the role of 

sewage of pipelines when installing. The medium can flow in any direction on both sides and easy to install.


General Information

◎ Design Standard: API602, ASME B16.34

◎ Main Material: Carbon Steel, Stainless Steel, Alloy Steel, Etc.

◎ Size Range: NPS1/2~NPS10/DN15~DN250

◎ Pressure Level: Class150~ Class 2500/PN20~PN420

◎ Temperature Range: -29℃~650℃                                     

◎ Application Scenario: The dual-connected sample gate valve is used in the occasion that the sealing effect is relatively strict and requires the control medium composition (sampling verification). For example, a high-temperature and high-pressure working medium, toxic and harmful risk liquid, the closure of the closure must ensure long-term sealing and leakage (the double gates valve can achieve a double-level seal effect under non-sampling state). Such as the application of power industry, petroleum refining, petrochemical industry, marine oil, tap water engineering in urban construction, chemical industry and other fields.


Technical Specification

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