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Plunger valve
Product classification of Meiyan One Pump Valve
- ShangHai Meiyan Yi Pump & Valve Co.,LTD.
- Sales hotline：
+86 21 5640 2009 - Pump customer service：
+86 138 1691 3072 - Valve customer service：
+86 1381 6913 072 - E-mail：
my1pv@1bengfa.com
Plunger valve
plunger valve is composed of components such as a valve body, valve cover, valve stem, plunger, handwheel, sealing ring, and hole holder. As the name suggests, the valve core of a plunger valve is cylindrical. When the handwheel is rotated, the plunger is driven by the valve stem to reciprocate up and down between two sealing rings, completing the opening and closing of the valve. The sealing form of a plunger valve mainly adopts an interference fit between the plunger and the sealing ring in the plunger valve. When the plunger is inserted into the inner hole of the sealing ring, the sealing ring is compressed and tightly holds the plunger sealing surface. At this point, the radial force generated by the interference seal ring will be greater than the fluid pressure, ensuring the sealing of the valve. When the plunger is pulled out, the sealing ring returns to its original state under the elastic action of the material. At this time, the fluid flows through the hole frame and the lower sealing ring towards the outlet. Due to the fact that the plunger valve sealing rings produced by Shanghai Meiyan Yi Pump Valve are made of new non-metallic materials, they have good mixed comprehensive performance and can withstand long-term high temperature and high pressure without losing elasticity. Moreover, the contact area between the plunger and the sealing ring is large. Therefore, the seal is reliable and durable. There are mainly two types of plunger valves: straight through plunger valves and angle plunger valves. The connection methods include internal thread connection, flange connection, and various models and specifications. The following pictures are for selection reference only, and the drawings provided by our company shall prevail.
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Flange Piston Valve
Flange plunger valve refers to the connection method of the plunger valve, which is flange connection. According to the operating pressure of the plunger valve, there are mainly flat flange, concave flange, convex flange, Austrian convex flange, etc. The flange plunger valve adopts interference fit between the plunger and the sealing ring in the valve. By adjusting the bolt in the pressure cover, the lateral force generated by the compression of the sealing ring forms a seal with the hole surface in the valve body and the outer circle of the plunger, thereby ensuring the sealing performance of the valve, eliminating internal leakage, and achieving rapid opening and closing of the valve with a small opening torque. Due to the use of non-toxic new sealing materials with strong resilience and high wear resistance in the sealing ring, it can withstand long-term high temperature and high pressure without losing elasticity, making the sealing performance reliable and durable.View details>>
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Internal thread plunger valve
Internal thread plunger valve refers to a plunger valve with a smaller diameter that is connected to pipeline equipment using internal threads. The thread system is generally British G-thread, and the general diameter is within DN50. Internal thread plunger valve is a valve composed of parts such as valve body, valve cover, valve stem, plunger, hole frame, sealing ring, and handwheel. Its working principle is that when the handwheel rotates, the valve stem drives the plunger to reciprocate up and down in the middle of the hole frame, completing the opening and closing functions of the valve. The internal thread plunger valves produced by Shanghai Meiyan Yipump Valve are generally used in the medium and small diameter pipelines of medium and low pressure valves, mainly for cutting off fluids. Due to its reliable sealing and effortless operation, it is suitable for occasions that require frequent switching.View details>>
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Angle type plunger valve
Angle type plunger valve refers to the valve body architecture of a plunger valve, with an inlet and outlet forming a 90 degree angle, which is more suitable for pipelines at corners or turns. The working principle of an angle type plunger valve is to rotate the handwheel to drive the valve stem to move, causing the plunger to move up and down in the hole frame. The plunger and sealing ring adopt interference fit. By adjusting the flange bolts in the pressure cover, the sealing ring is compressed to generate lateral force, which seals with the hole surface in the valve body and the outer circle of the plunger, ensuring the sealing performance of the valve and preventing internal and external leakage. The angle plunger valves produced by Shanghai Meiyan Yipum Valve are widely used in pipeline equipment with frequent switching in industries such as metallurgy, electricity, chemical, refining, fertilizer, light industry, and food. The sealing ring adopts a non-toxic new sealing material with strong resilience and high wear resistance, which is reliable and durable in sealing.View details>>
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Piston Gate Valve
A plunger gate valve refers to a valve whose body shape is similar to that of a gate valve. The sealing effect of a plunger gate valve is achieved by the tight fit between the plunger and the sealing ring, with a large sealing area and almost no wear on the contact surface. When closed, the plunger is inserted into the lower sealing ring to cut off the flow channel, and the medium pressure and resistance during opening and closing are relatively small. Piston gate valves are suitable for applications that require frequent operation and flow regulation, such as food, pharmaceutical, chemical, and other industries. But its adjustment stroke is long and throttling control is difficult, but the valve opening torque is small and can be quickly opened and closed.. The plunger gate valves produced by Shanghai Meiyanyi Pump Valve are mainly made of cast steel, cast stainless steel, etc., consisting of valve body, valve cover, valve stem, plunger, hole frame, sealing ring, handwheel and other components. The sealing rings of plunger gate valves are made of new non-metallic materials, with good mixed comprehensive performance and the ability to withstand long-term high temperature and high pressure without losing elasticity.View details>>
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Piston globe valve
A plunger globe valve refers to a valve whose body shape is similar to that of a globe valve. A plunger globe valve is a forced sealing valve, and when closed, pressure must be applied to the valve disc to force the sealing surface not to leak. The medium flows from top to bottom and is subject to significant resistance from the valve disc. The plunger globe valve is suitable for working conditions that require strict flow control and infrequent adjustment, such as the control of steam, water, and other general industrial media. It has low fluid resistance, simple structure, and easy maintenance. The working principle of the plunger globe valve produced by Shanghai Meiyanyi Pump Valve is to rotate the handwheel, and the valve stem drives the plunger to reciprocate up and down in the middle of the hole frame, completing the opening and closing of the valve. The sealing ring is made of materials with strong resilience and high wear resistance, which can maintain good sealing performance in high temperature and high pressure environments.View details>>
- Sales hotline：
+86 21 5640 2009 - Pump customer service：
+86 138 1691 3072 - Valve customer service：
+86 1381 6913 072 - E-mail：
my1pv@1bengfa.com
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