Hebei Huahui Valve Co., Ltd

A gate valve is the most widespread type of industrial valves for pipelines. It also is very popular in many applications. But how much do you know about the gate valves? As a   gate valves supplier , I'd like to share it with you.                             Gate Valve What is a Gate Valve? A gate valve, also known as a sluice valve, is a valve that opens by lifting a gate out of the path of the fluid. Gate valves got their name from the closure element sliding into the flow stream to provide shutoff and, therefore, acting like a gate.  Gate valves require very little space along the pipe axis and hardly restrict the flow of fluid when the gate is fully opened. It represents a linear-motion isolation valve and has a function to stop or allow the flow.   Gate Valves Applications Gate valves are used in almost all fluid services such as air, fuel gas, water, steam, lube oil, hydrocarbon, and all most any...

Stainless steel butterfly valves will appear rusty when they are in use. Many friends don't know what caused it. Today the butterfly valve manufacturer will tell you about this problem. Let's learn about it with the   Butterfly Valve Supplier . Stainless steel butterfly valve will rust during use. Through metallographic analysis, dyeing test, heat treatment test, SEM and other tests, it is found that the key factor for material corrosion is the precipitation of carbides along the grain boundaries to form chromium-depleted areas, which causes the stainless steel butterfly valve to rust. Material CF8M stainless steel butterfly valve rusts during use. After austenitic stainless steel undergoes normal heat treatment, its structure should be austenite at room temperature, and its corrosion resistance is very good. Analyze the cause of butterfly valve corrosion. Butterfly Valve The stainless steel butterfly valve material is nickel-chromium austenitic stainless steel, which is usuall...

  Butterfly Valve Gate valves are mostly used in steam pipelines and large-diameter water supply pipelines. Since fluid resistance is generally required to be small, gate valves are used. In the gate valve, the hand wheel rotates and the valve stem moves upward. The flow rate is different, the gate valve is required to be fully opened. A higher installation space is required, and the sealing surface of the gate valve has a certain self-sealing ability. Its valve core is in tight contact with the sealing surface of the valve seat by the medium pressure to achieve tightness and leak-proofness. The inclination of the valve core of the wedge gate valve is generally 3-6 degrees. When the valve core is forced to close excessively or the temperature changes greatly, it is easy to jam. Therefore, high temperature and high pressure wedge gate valves have taken certain measures to prevent the valve core from jamming in the structure. When the gate valve is opened and closed, the valve core a...

BS5163 Spur gear Resilient Seated Gate Valve with bypass Product Description gate valve with bypass  Features The ductile iron core is fully vulcanized with EPDM rubber, no iron parts are exposed to the medium and the excellent rubber vulcanization prevents creeping corrosion underneath the rubber. Guides in the wedge and on the valve body ensure a uniform closure, safe operation ensured as the guides prevent overloading of the stem. Stainless steel stem with rolled threads for high strength. The valve can replace stem seals under pressure. Full bore. Body inside and outside fusion bonded epoxy coating with excellent corrosion resistant performance.  gate valve  with bypass Standard Design standard BS5163, EN1171 Flange drilling standard EN1092-2 PN10/PN16 Face to face standard EN558-1 Series 3 Hydraulic test standard EN1074-1 and 2 /EN12266   Seat:1.1*PN(in bar), Body:1.5*PN(in bar)

As a   Butterfly Valve Supplier ,share it with everyone. The butterfly valve is a valve that uses a disc-type opening and closing member to reciprocate about 90° to open, close or adjust the flow of the medium. The butterfly valve is not only simple in structure, small in size, light in weight, low in material consumption, small in installation size, small in driving torque, easy to operate, fast, and high in chemical corrosion resistance, but also has good flow regulation and closing and sealing characteristics at the same time , The use of butterfly valves is very extensive. , The variety and quantity of its use continue to expand, and it is developing towards high temperature, high pressure, large diameter, high sealing performance, long life, excellent adjustment characteristics, and one valve with multiple functions. Its reliability and other performance indicators have reached a high level. Disadvantages, there is a certain resistance to the medium. Butterfly Valve Gate valve...

  What is Gate valves Gate valves  are widely used for all types of applications and are suitable for both above-ground and underground installation. Not least for underground installations it is paramount to choose the right type of valve to avoid high replacement costs. Gate valves are used to shut off the flow of liquids rather than for flow regulation. When fully open, the typical gate valve has no obstruction in the flow path, resulting in very low flow resistance. The size of the open flow path generally varies in a nonlinear manner as the gate is moved. This means that the flow rate does not change evenly with stem travel. Depending on the construction, a partially open gate can vibrate from the fluid flow Gate valves are mostly used with larger pipe diameters (from 2" to the largest pipelines) since they are less complex to construct than other types of valves in large sizes. Gate Valve Parts Main gate valve p...