multi-function water hammer elimination check valve
Design Features
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It can be used as a slow closing check valve:
aWhen it is applied to the pump outlet:
in the process of water pump to the top of the high water, when the pump stops, the return water in the pipeline is downward impulse (I. e. water hammer effect), which is easy to cause accidents, so in order to avoid accidents, the check valve must have a slow closing function. This valve has this function to ensure the safe operation of the pipeline. The operator only needs to open or close the pump, which not only eliminates the manual operation, avoids the water hammer phenomenon, but also realizes the automatic control of the pipeline, which is more safe and reliable.
BWhen it is used in pipelines:
When the pipe in the direction of the valve inlet suddenly breaks, the valve can automatically close the backwater in the direction of the outlet, so as to avoid the danger of high-level backwater backflow and avoid the phenomenon of wasting a lot of water.
ordinary check valve closing speed, easy to produce water hammer, so that the pressure suddenly rise, that is, water hammer phenomenon, this situation will damage the pipeline and equipment, and noise, so you need to have a slow closing function of the check valve, the existing slow closing check valve on the market mostly need to take the following ways:
a. Slow-closing check valves mostly need pressure drive to open the valve. If the water pressure does not reach the minimum pressure of the valve, it will not open the valve. B. It will not automatically adjust with the change of pressure. It also needs to adjust the opening and pressure according to the instructions. If there is misunderstanding in operation, it will bring potential safety hazards. C. Failure will also cause the water pump to pump normally. And our valve can be opened with only 1kg of pressure, and there is no need to adjust. The valve itself has a slow closing function. It will automatically adjust with the change of pressure. After years of use by customers, it is generally reflected to be very safe and reliable.
2,It can be used as a switch valve (is the micro-force switch valve):
its switching principle is to use the pressure of the fluid itself to realize the automatic switch.
This is a valve that does not require a handwheel. It only needs to rotate the knob on the valve, and only a small force can control the valve switch, especially when the large valve switch is more time-saving and labor-saving.
3,It also has the function of preventing water hammer and automatic pressure relief:
When the pipeline first water head impact is very large, easy to cause damage to the pipeline, in this case with the valve can solve this problem, its role is when the pump starts, the head suddenly pressurized, the valve can automatically head impact energy off, and then automatically shut down, to ensure the safety of the valve and other pipeline components, for the safe operation of the pipeline escort.
good for users
(1)This valve is equivalent to the on-off valve check valve water hammer eliminator, saving equipment investment
(2) Small size and light weight, saving installation space and construction costs
(3) Switch control and its labor-saving, time-saving, worry-free, no need to worry about the risk of backwater impact and head impact
(4) As long as the flow direction is correct, it can be installed horizontally or vertically at will.
(5) No power is required to operate the switch, which is convenient for the field and inconvenient power supply environment
(6) in the pipe network to break the upstream loss of pressure and automatically shut down the role, to avoid a large number of water overflow accidents
(7)built-in mechanism is durable, sealed and durable, and has a long service life. Even if it needs to be repaired, it only needs to replace the parts online, without spending a lot of construction costs.
technical parameters
(1) Nominal pressure (MPa):≤ PN16; medium pressure ≤ PN100; high pressure ≤ PN1000
(2) Applicable medium: no sediment water, bottom viscosity fluid, medium and high pressure gas
(3) working range temperature:-20~150 ℃
Scope of application
water supply and drainage system; heating and secondary heat exchange system; medium and high pressure gas pipe network
picture shows a 5-year-old girl easily switching DN200 "multifunctional water hammer elimination check valve"
