Which is better, clamp check valve or flange check valve? The answer is flange check valve, because flange check valve can withstand greater pressure and is widely used. The main advantages of clamp check valves are low price and small size. But we cannot compare these two types of check valves because they have significant differences. Choosing the right valve under the appropriate operating conditions is necessary to achieve the desired valve function. The answer to clamp check valves and flange check valves is flange check valves, because flange check valves can withstand greater pressure and are widely used. The main advantages of clamp check valves are low price and small size. But we cannot compare these two types of check valves because they have significant differences. Choosing the right valve under the appropriate operating conditions is necessary to achieve the desired valve function.
The difference between clamp check valves or flange check valves is that the purpose of water hammer pressure is different: the clamp check valve has a small volume, a short valve disc stroke, and is assisted by a spring to close the valve.
Size and weight comparison: The clamp type check valve has a short structure, small volume, and light weight, which brings great convenience to the installation, handling, storage, and pipeline layout of the valve, and can save a lot of materials and reduce costs; The flange check valve has a long structure, large volume, and heavy weight.
The application of fluid resistance is different: for clamp type check valves, the resistance is small, and the fluid resistance coefficient ξ is 2.6~2.7. As the valve diameter increases, the fluid resistance coefficient decreases; The flange check valve is relatively small, with a fluid resistance coefficient ξ of 1.3~3, but under low pressure conditions, the valve disc cannot be fully opened, resulting in high fluid resistance. The fluid resistance increases with the increase of valve diameter.
Different installation methods: Clamp type check valves can be installed horizontally or in a straight line, are lightweight, and do not require a bracket for the valve; Flange check valves and large-diameter valves require heavy horizontal installation and need to be supported with brackets.
The opening pressure is different: the opening of the clamp type check valve is very small, and the valve disc can be fully opened under a small pressure difference; The opening pressure of the flange check valve is high, and the valve disc can be fully opened under a large pressure difference.
The reliability of valves varies: clamp type check valves have an integral structure, are simple and compact, have low impact force when closed, low water hammer pressure, long valve life, and high reliability; The huge impact force and water hammer pressure when the flange check valve is closed can easily damage the valve.
Check valves, also known as one-way valves or check valves, have a wide variety of types to choose from. You can choose different models, materials, and specifications from our check valve selection.
