Knowledge

A wellhead device is a device installed at the wellhead to control the pressure and direction of gas, liquid oil, water, etc., sealing tubing and casing in oil and gas drilling as

High pressure plate gate valve adopts a new balanced floating seal structure, suitable for the pressure does not exceed 40 mpa, temperature does not exceed 120℃ oil products, the p

(1) Check whether the upper and lower splints of the high-pressure flat gate valve are cracked, welded, corroded, deformed and seriously damaged, whether the valve is flexible, and

The high-pressure flat gate valve is suitable for natural gas, petroleum, chemical, environmental protection, urban pipelines, natural gas pipelines and other gas transmission pipe

1. Adopt floating valve seat, two-way opening and closing, reliable sealing, and flexible opening and closing. 2. The lower part of the gate is provided with a diversion hole, whic

1. Check whether the wedge gate valve is properly closed, whether there are foreign matters on the sealing surface, and whether there is internal leakage on the sealing surface. If

Different from horizontal gate valves, wedge gate valves and wedge single gate valves. The two sealing surfaces of the most commonly used wedge gate valves form a wedge whose angle

In terms of structural form, it mainly focuses on the improvement and development of gate valves, vigorously promotes the use of wellhead devices, and conducts reliability analysis

Due to dual sealing, worn parts can be replaced without affecting the operation of the pipeline. The high-pressure flat gate valve mainly adopts a floating valve seat and two-way s