Product name: DSBP741X low resistance backflow preventer DMPDH741X
Product introduction:
Single diaphragm low resistance backflow preventer DSBP741X low resistance backflow prevention valve/low resistance backflow preventer DMPDH741X/single diaphragm backflow preventer/stainless steel low resistance backflow preventer/low resistance waterproof backflow check valve is a hydraulic control combination device used for urban water supply and other water supply units. When supplying water to general pollution units, it strictly limits the pressure water in the pipeline to flow in one direction. Its function is to prevent the medium in the pipeline from backflow or siphon backflow under any working conditions to achieve the purpose of avoiding backflow pollution.
Product features:
1. The structure is more compact, short in size, small in volume, low in backflow, low in noise, and the normal working water loss is 1.3~2.5 meters at the economic flow rate.
2. The accuracy and discharge pressure of the drain valve are adjustable, so that it is less disturbed by pipeline pressure fluctuations, and the opening and closing are safe and reliable, without abnormal drainage.
3. Single diaphragm design, the proven reliability of key components such as diaphragms make its quality better than ordinary backflow preventers.
4. The * flow channel design of the two-stage check valve has small flow resistance and fast opening and closing speed, which can effectively prevent the sudden increase of back pressure from damaging the valve and pipeline, limit the backflow of pressure water or siphon backflow, and has a silent function, effectively extending the service life of the valve.
5. Humanized design, the product can be installed horizontally or vertically, tested online, and repaired online.
Technical standards:
1. Design and manufacturing technical requirements are in accordance with the provisions of CJ/T160;
2. Valve inspection and testing are in accordance with the provisions of GB/T13927;
3. The valve structure length is in accordance with the provisions of GB/T12221;
4. The flange size is in accordance with the provisions of GB/T17241.6;
5. The surface of the valve is coated with epoxy resin powder before assembly, and it complies with the provisions of GB/T17219.
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