Carbon steel low resistance backflow preventer LHS743X-16C

LHS743XLow resistance backflow preventerMainly used for urban water supply and other water supply units to the general pollution units when strictly limited to the pipeline pressure water can only flow one-way hydraulic control combination device. Its function is to absolutely prevent the medium in the pipeline from flowing backward or siphoning backward under any working condition, so as to achieve the purpose of avoiding backward flow pollution. The product has a small noise, low flow resistance, smooth and sensitive operation, easy installation and maintenance, long service life and other significant features. Widely used in various types of construction, fire, industrial and mining, hospitals, gardens, water treatment and other systems in the water supply network need to prevent backflow pollution occasions.

Product Features:

1, by the front and rear twocheck valveand intermediate automatic drains consist of.

2, in the front and rear check valve leakage, can automatically drain, block the return flow, strictly prevent the return flow pollution, protect the water quality in the upstream pipeline.

3、Ultra-low water loss, significant energy saving: head loss is less than 0.04Mpa.

4, air isolation, automatic drainage: in the reflux state occurs, the main valve is closed, the drain automatically opens, the intermediate chamber pressure relief is zero, the main valve between the upstream and downstream to achieve air isolation or zero-pressure isolation, isolation performance is safe and reliable.

5, land and material saving, flexible installation: small shape, light weight, structure length is only 30% of the existing similar products; can be installed horizontally or vertically.

Product Parameters:

Product Size Reference: