Types of API 6A Gate Valves

 Yulin Machinery is one of the Chinese manufacturers of API 6A gate valves. The API 6A gate valves manufactured by Yulin Machinery are divided into ball screw gate valves, API 6A expansion gate valves, API 6A hydraulic gate valves, Slab Gate Valve, API 6A Choke Valve, etc. Their functions are as follows.


Ball Screw Gate Valve



Ball screw gate valves are designed for large caliber, high pressure manual valves. The valve combines the tail balance lever and the unique ball ball principle to make its operation light, low torque, easy to operate.

Slab Gate Valves widely used in oil, natural gas long-distance pipelines and gas fields Valves used in forging or casting body, the gate designed with diversion holes, non-diversion holes; single discand double disc structure; Seat used bi-direction seal seat which mainly based on the metal seat sealing and assisted with soft seat sealing as a second type of seal. The series of parallel type gate valve has rational design, compact structure, sulfur resistance, corrosion resistance, wear-resistant, reliable sealing, and light torque of switches, easy-to-use.

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What is the Selection Principle of Slab Gate Valve?

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  As a   Wellhead Suppliers , share with you. The flat gate valve has low flow resistance, and its flow resistance without retraction is similar to that of a short tube. The flat gate valve with diversion hole can be directly used for pigging when installed on the pipeline. Since the gate slides on the two valve seat surfaces, the flat gate valve fluid can be applied to the medium with suspended particles, and the sealing surface of the flat gate valve is actually automatically positioned. The sealing surface of the valve seat will not be damaged by the thermal deformation of the valve body. Moreover, even if the valve is closed in a cold state, the thermal elongation of the valve stem will not overload the sealing surface. At the same time, when the valve is closed, the flat gate valve without diversion hole does not require the closing position of the gate to have a higher accuracy, so the electric flat valve can use the stroke to control the opening and closing position. Sl...
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