Forged steel internal thread gate valve
Category： Gate valve series
Summary： Gate valves are one of the most commonly used shut-off valves, including open rod gate valves and dark rod gate valves. The stem of the open stem gate valve drives the gate plate to rise and fall together, and the transmission thread on the valve stem is outside the valve body, which is convenient for lubrication and not corroded by fluid; The transmission thread of the dark rod gate valve (Z45) is located inside the valve body, the valve stem only does rotational movement, and the gate plate is raised and lowered in the valve body.
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Main characteristics and uses of gate valves
Gate valvesare one of the most commonly used shut-off valves, including open rod gate valves and dark rod gate valves. The stem of the open stem gate valve drives the gate plate to rise and fall together, and the transmission thread on the valve stem is outside the valve body, which is convenient for lubrication and not corroded by fluid; The transmission thread of the dark rod gate valve (Z45) is located inside the valve body, the valve stem only does rotational movement, and the gate plate is raised and lowered in the valve body.
Gate valvesare divided into wedge, parallel, rigid, elastic, single gate and double gate and other structural gate valves according to the structure of the gate. Wedge rigid single gate gate valve (Z41) has simple structure, small size, and is more reliable to use, but the processing and matching accuracy of the wedge angle requires high, and it is easy to jam and scratch, it is suitable for gate valves of various media and pressures at room temperature and medium temperature; Wedge elastic single gate gate valve (Z40) can rely on the gate plate to produce a small amount of elastic deformation compensation effect to achieve good sealing, temperature change is not easy to cause wedge, wedge angle accuracy requirements are low, but should prevent the closing torque is too large and make the gate plate lose elasticity, it is suitable for various temperature and pressure gate valves; Parallel double gate gate valve (Z44) generally generates sealing force through the top wedge, the relative movement between the sealing surfaces is small, not easy to scratch, mostly used for low-pressure, small and medium-diameter gate valves.
Gate valves are mainly used to connect or cut off the medium in the pipeline on various pipeline systems, and are not suitable for adjusting the flow of media. Gate valves are suitable for a wide range of pressure, temperature and diameter, especially for medium and large diameter pipelines. In addition to special slurry valves, it is generally not suitable for pipelines transporting slurry and viscous fluids.
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Address: 517 Fucang Road, Bancang Industrial Park, Zigong City
