Parallel gate valve is a sliding valve with parallel gate as the closing element. The closing component can be a single gate or a double gate with a support mechanism in between. The clamping force of the gate to the cast steel valve seat is controlled by the medium pressure acting on the floating gate or floating valve seat. If it is a double gate parallel gate valve, the expansion mechanism between the two gate plates can supplement this clamping force. The parallel gate valve has a flange and is connected to the pipeline using a flange connection.
Parallel gate valves can be divided into three types based on their purpose and usage: parallel gate valves with diversion holes, parallel gate valves without diversion holes, parallel gate valves for gas, parallel gate valves for pipelines, and parallel gate valves for oil fields. According to the driving mode, it can be divided into manual parallel gate valve, pneumatic parallel gate valve, and electric parallel gate valve.
Application of parallel gate valve products
1. Parallel gate valves are suitable for use in chemical, environmental, urban pipelines, venting systems, and steam storage devices as opening and closing equipment.
2. Wellhead equipment for oil and natural gas extraction.
3. Transportation pipelines and storage equipment for finished oil products.
4. Urban gas transmission pipelines.
5. Pipelines containing suspended particles.
6. Water supply project.

Characteristics of Parallel Gate Valve Products
1. The valve seat adopts an O-ring seal and a floating valve seat structure with pre tension force, which enables bidirectional sealing of the inlet and outlet of the parallel gate valve; And the structure is simple enough to easily open and close valves
2. When fully open, the channel is smooth and straight, with a very small flow resistance coefficient and no pressure loss. It can be cleaned by passing a rough ball through the pipeline
3. Adopting a packing structure with self sealing ability, it does not require frequent adjustment, and the opening and closing are extremely lightweight with reliable sealing performance. The packing box is equipped with an auxiliary sealing grease injection structure, which ensures reliable sealing performance and truly achieves zero leakage; Solved the problem of easy leakage at the packing of universal valves
4. When the flat flange gate valve is closed, it can automatically remove the high-pressure flange inside the chamber, ensuring safe use
5. Fully enclosed structure, good protective performance, can adapt to all-weather requirements