Germany Aerzener valve Aerzener model Aerzener price

Aerzener valves are used to prevent backflow of media, opening automatically using the fluid's own kinetic energy and closing automatically during reverse flow. They are commonly installed at pump outlets, steam trap outlets, and other locations where reverse fluid flow is not permitted. Check valves are classified into three types: swing check, lift check, and wafer check. For swing check valves, when fluid can only flow from left to right, they close automatically during reverse flow. For lift check valves, when fluid flows from left to right, the valve disc lifts to form a passage; during reverse flow, the disc is pressed against the valve seat to close. For wafer check valves, when fluid flows from left to right, the valve disc opens to form a passage; during reverse flow, the disc is pressed against the valve seat to close. Wafer check valves allow multi-position installation, have small volume, light weight, and compact structure.

Aerzener valve industry applications

Ball valves are widely used in oil refining, long-distance pipelines, chemical industry, papermaking, pharmaceuticals, water conservancy, electric power, municipal engineering, steel industry, and other sectors, playing a significant role in the national economy. It features a rotation of 90 degrees, with a spherical plug body having a circular through-hole or channel along its axis. Ball valves are mainly used in pipelines for shut-off, distribution, and changing the flow direction of media. They require only a 90-degree rotation operation and minimal torque to achieve tight shut-off. Ball valves are most suitable for use as on/off and shut-off valves, V type ball valve. In addition to pipeline parameters, special attention should be paid to the environmental conditions for electric valves, as the electric actuator in an electric valve is an electromechanical device whose operating status is greatly affected by the environment. Typically, special attention is required for electric ball valves and butterfly valves in the following environments. [1]

Aerzener valve performance testing precautions

1) When valves of a specific specification are manufactured in batches, an official agency should be commissioned to perform the following performance tests: (1) opening and closing torque of the valve under working pressure conditions; (2) detection of the flow resistance coefficient of the valve under pipeline water transmission conditions. 2) The following tests should be performed on valves before factory release: (1) with the valve in the open position, the valve body shall withstand an internal pressure test at twice the valve's working pressure; (2) with the valve in the closed position, both sides shall separately withstand 11 times the valve's working pressure without leakage; however, for metal-sealed butterfly valves, the leakage value shall not exceed relevant requirements.

Aerzener valve installation instructions

Butterfly valves have a simple structure, small volume, and light weight, with relatively few components; just a few key parts constitute the butterfly valve. Opening is very convenient, requiring only turning the switch to ninety degrees. Butterfly valves provide excellent control over fluid flow, allowing flow rate to be increased or decreased at any time. Valves always present some resistance when transporting any fluid, and the resistance of a butterfly valve mainly comes from itself, such as the thickness of the butterfly valve body. To reduce fluid resistance, one only needs to reduce its thickness. Elastic seals have the disadvantage of being limited by temperature. The application range of butterfly valves is also quite wide. If used for flow control, different types and valve body sizes need to be selected, as butterfly valves are inherently more suitable for larger nominal diameters during design. Butterfly valves are not only widely used in general industries such as petroleum, gas, chemical, and water treatment, but also applied in cooling water systems of thermal power stations.

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