300X type slow closing check valve consists of main valve, check valve, needle valve, ball valve, micro filter and pressure gauge. The hydraulic control valve takes over the system. Hydraulic automatic operation, the main valve can be the best opening and closing speed. Chung hit the water to prevent water, to achieve the effect of slow closing muffler.
Working principle of slow closing check valve
When the valve from the inlet side of the water supply, the water through the micro filter, needle valve, one-way valve into the main valve control room, and then through the ball valve drainage to the downstream. Because the opening of the needle valve is smaller than the opening of the ball valve, that is, the main valve control room drainage speed is greater than the water inlet speed, so the pressure reduction in the control room, acts on the main valve disk inlet pressure at the lower end, open the main valve to downstream water supply. When the pipe when the water is stopped, if the downstream water began to return a portion of the water by the ball back into the main control room, because the function of a one-way valve, water can not back out from the main control room, caused by the main control room pressure gradually slowly close the main valve by the hydraulic self-control, no other devices and energy, maintenance is simple smooth opening and closing slowly. The valve products are widely used in water supply network systems and urban water supply projects such as high-rise buildings and living quarters.
Slow closing check valve installation and adjustment
1. the main way to install the main valve is horizontal installed on the pipeline, the valve cover facing up, and other installation methods can also achieve the use of function
2., before installation to completely remove the debris in the pipe, installation is to pay attention to the main valve outside water flow mark arrow, follow the direction of installation
3. before the main valve to install a gate valve and a filter, the main valve should also install a gate valve in order to facilitate maintenance
4. wash the pipe thoroughly before passing through water
5. test the water, it is necessary to slowly open the valve before the main valve, slowly increase the pressure, while paying attention to the main valve outside the control pipeline leakage
6. the main valve of the micro filter to the main stage cleaning needle valve and ball valve with the adjustment, you can get the best speed of opening and closing
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Zhejiang Hui Sheng Valve Co. Ltd is a professional production and sales of hydraulic control valves, multifunctional pump control valve, pressure reducing valve, control valve, micro slow close check valve, flow control valve, intelligent automatic control valve, flow and pressure regulating valve, automatic valve, silent check valve, mud valve, exhaust valve soft sealing gate valve, filter, filter, piston type check valve, balance valve and other products, widely used in waterworks, power plants, metallurgy, petrochemical, construction, energy, medicine and other water distribution piping system. Companies always adhere to the "quality first, customer first, excellence, and strive to develop] quality policy, and dedication to provide you with the best quality service! The general manager of the company and all the staff sincerely welcome friends to come to visit, discuss business, good faith cooperation, mutual benefit and create a better future!
Address: Zhejiang Wenzhou Dong'ou Street Anfeng Industrial Zone Chinese universal valve group
Tel: 0577-66999307 66999306
Fax: 0577-66999305
Mobile: 13968957077
Http://www.zjhsfm.com
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Order note
First, please try to put the selected valve pump flow and head [] told us, we help you by product selection (detailed parameters), please try to select [valve] diameter, pressure, material we help you tell us by product selection (detailed parameters).
Two. If the model of our company has been selected by the design unit, please order directly to our sales department according to the type of product.
Three, special temperature and pressure orders should be made separately
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Company after-sales service:
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709300645895814868 copies
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