Low Resistance Backflow PreventerIt Is A Hydraulic Control Type Combination Device, Whose Core Function Is To Prevent The Backflow Of Medium In The Pipeline, Eliminate Backflow Pollution, And Have The Advantage Of Low Head Loss. It Conforms To Relevant Regulations Such As CECS 259:: 2009 And Is Widely Used In Pipeline Systems That Need To Ensure Water Quality Safety For Municipal Water Supply, Fire Protection, Domestic Water, Etc. It Is A Key Protective Equipment For Safeguarding Water Supply Safety, With A Total Word Count Controlled Within 500 Words.

Structurally, It Mainly Consists Of A Two-stage Check Valve, An Intermediate Automatic Drain, A Valve Body, And Seals. The Valve Body Is Mostly Made Of Ductile Iron And 304 Stainless Steel, The Internal Components Are Made Of Stainless Steel, And The Seals Are Made Of EPDM Rubber, Which Meets The Standards For Drinking Water. The Core Highlight Is The Low Resistance Flow Channel Design And Dual Stage Protective Structure, Which Does Not Require Manual Operation And Relies On Hydraulic Pressure Difference To Work Automatically. When The Water Flows Forward, The Dual Stage Check Valve Opens And The Drain Closes. When The Water Flows In Reverse Or Under Abnormal Pressure, The Check Valve Closes And The Drain Opens, Emptying The Middle Chamber To Form An Air Partition And Blocking Backflow Pollution.

The Core Features Are Distinct, Low Resistance And Energy-saving, With A Head Loss Of Only 2-3m At A Flow Rate Of 2.5m/s, Far Lower Than Ordinary Backflow Preventers; Reliable Protection, Dual Stage Check And Automatic Drainage Dual Guarantee, Even If A Single Check Valve Leaks, The Medium Can Be Discharged Through The Drain To Avoid Pollution; Flexible Installation, Compact Size, Light Weight, With A Structural Length Of Only 30% Of Similar Products, Can Be Installed Horizontally Or Vertically; Corrosion Resistant And Durable, Coating Meets Drinking Water Standards, Suitable For Media ≤ 65 ℃, Nominal Pressure 1.0~1.6MPa, Easy Maintenance, Low Failure Rate.

Widely Applicable Scenarios, Mainly Used At The Connection Between Municipal Water Supply Pipelines And User Pipelines, At The Intersection Of Domestic Drinking Water And Heterogeneous Water Systems, And Can Also Be Equipped With Non Negative Pressure Equipment Installation, Suitable For High-rise Buildings, Commercial Complexes, Water Plants And Other Places. Compared To Ordinary Backflow Preventers, Its Head Loss Is Small, Energy Saving Is Significant, And The Protection Level Is High. It Is An Ideal Protective Device That Balances Water Quality Safety And Transportation Efficiency, Providing Safe Protection For The "last Mile" Of The Water Supply System.

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