Index>News>Fluorine lined DC globe valve manufacturer reports: Several valve manufacturers are all slow closing check valves
TIME:2012-10-27 Source: This site
The slow closing opening of the check valve disc of the slow closing check valve, that is, the extended length of the slow closing piston, should be adjustable throughout the entire process.
clamp-on Fluorine-lined Butterfly Valve The manufacturer said that the check valve disc (butterfly plate) of the slow closing check valve should open and close flexibly without any jamming phenomenon.
The damping piston in the slow closing device must act sensitively. When the reverse valve disc (butterfly plate) is opened, it can automatically and quickly extend to the predetermined working position. When the check valve disc (butterfly plate) is closed to the slow closing position, it can play an effective slow closing role. The capacity of the damping piston cylinder in the slow closing device should be matched with the regulating valve used to avoid excessive force on the damping piston cylinder and pipeline, achieving the purpose of adjustable damping and damping.
The slow closing device of external damping slow closing check valve and hydraulic butterfly check valve should be equipped with a mechanism for monitoring the damping medium liquid level.
The self damping slow closing valve does not allow raw water, sewage, etc. with solid particles to directly enter the slow closing device to avoid blockage or damage to the sealing components.
check valve Merchant: Hydraulic butterfly check valves and butterfly slow closing check valves should be equipped with an indicator mechanism that correctly displays the position of the butterfly plate opening.
Hydraulic butterfly check valves should be equipped with a heavy hammer or accumulator as an additional power source to automatically close the valve in case of power failure.
PTFE lined valve Supplier: The connection, transmission, and support components related to the slow closing device should have sufficient strength and rigidity.
Hydraulic devices: Standard hydraulic and electrical components should be selected from products with reliable quality, good performance, and long service life, and should be tested according to the relevant standards. Only after passing the tests can they be used. After the assembly of the hydraulic device, various parameter performance tests and adjustments should be carried out to meet the design requirements of "slow closing" of the valve.
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