Backflow Preventers
Basic Informationof the no slam check valveThis non slam valveprevents backflow of media and reduces water hammer to achieve the safe and quiet effect.Features1. Small fluid resistance, large flow;2. Automatic control using medium energy;3. Prevent water hammer phenomenon;4. Slowly-closing silencing.PrincipleWhen the pipe supplies water from the inlet end of the valve, the water from the needleand one-way valve enters thevalvecover control room and then is discharged downstream through the ball. Due to the small opening of the needle valve, the discharge speed of the control room is greater than that of the inlet to replenish water, thus reducing the pressure in the control room. The inlet pressure acting under the main valve disc all the time lifts the main valve disc, thereby opening the main valve disc and supplying water downstream. When the pipeline stops supplying water, the downstream water begins to flow back. Due to the effect of the one-way valve, the backflow water cannot flow out after entering the valve cover control room through the ball valve. As a result, the pressure of the valve cover control room increases gradually and the main valve disc is closed tightly.Installation and CommissioningNeedle valve and ball valve adjust together to get the best opening or closing speed. For specific use, please consult ZECO Valve Group.ZECO are one of the most professional non slam check valve manufacturersin China.Product scope , Standards & MaterialsSize Range: 2"~24"Pressure Rating: 10bar ~ 25barFace to Face Dimensions: AMSE B16.10, EN558-1Flange End Dimension: AMSE B16.1/16.42, AS4087, EN1092-2Coating: Fusion Bonded Epoxy CoatingInspection and Test: ISO 5208 / EN 12226-2
ZECOis one of the most professional china check valve manufacturers, and we have been devoted to produce control valve chinafor many years. If you want to know more details or want a quotation, just feel free to contact us!
Отправить запрос, связаться с поставщиком
Другие товары поставщика
 |
Pneumatic Ball Valve | As one of the leadingchina ball valve suppliers, ZECO Valve Group developed our own laboratory for research &development for international stan... |
 |
Triple Offset Butterfly Valve | Categories: Butterfly Valve, Butterfly Valve By Form, Triple Offset Butterfly Valve Tag: What is a Valve Description The triple offset butterfly v... |
 |
Flange Globe Valve | Description of Flange Globe Valve: ZECO forged globe valvescan be divided according to the location of the stem thread. Flange globe stop valveste... |
 |
WCB Valve – WCB Gate Valve | Description As one ofgate valve manufacturers china, ZECO Valve Group is certified to API 600 and API 6D and we offer competitive quotations as we... |
 |
Forged Steel Gate Valve | Categories: Forged Steel Gate Valve, Gate Valve Tag: OS&Y Valve Description ZECO manufacturing capabilities for API 602 Forged Gate valves... |
Похожие товары
 |
Class 300 Valve | Продавец: GangYe Group Co.,Ltd. | Class 300 valves have a pressure rating of 300 pounds per square inch (psi) or 20.7 bar, allowing... |
 |
Class 3000 Industrial Valve | Продавец: GangYe Group Co.,Ltd. | Wafer Body, Full Port Design, Flanged End Class 3000 Ball Valve. A ball valve class 3000pressure-... |
 |
Class 2500 Industrial Valve | Продавец: GangYe Group Co.,Ltd. | Class 2500 valves can be used for both on-off and throttling applications. The specific valve typ... |
 |
Class 150 Valve | Продавец: GangYe Group Co.,Ltd. | globe valve class 150is a pressure rating designation defined by standards organizations, such as... |
 |
Class 1500 Industrial Valve | Продавец: GangYe Group Co.,Ltd. | A class 1500 valve made of 316 stainless steel, for instance, can sustain 248 bar of pressure at ... |
