HS41W Backflow Preventer

Product Overview

A backflow preventer is a device composed of check components designed to prevent backflow of water in supply pipelines. It is primarily used by urban water supply systems and other water supply entities when delivering water to general polluting facilities, strictly regulating pipeline pressure under all operating conditions to absolutely prevent backflow or siphon backflow of the medium within the pipelines, thereby ensuring reliable water supply.

To prevent backflow contamination.

Product Features

It utilizes the principle of pressure reduction to achieve low resistance, featuring a compact structure and shorter dimensions.

The two-stage independent check valve features low flow resistance and rapid opening/closing, effectively preventing damage to valves and pipelines caused by sudden backpressure surges, while offering silent operation.

The drainage valve features adjustable discharge pressure, exhibits minimal interference from pipeline fluctuations, and ensures safe and reliable operation; its dual-diaphragm design effectively prevents backflow contamination caused by diaphragm damage.

The air partition features dual channels for intake and exhaust, ensuring that the intake and exhaust processes in the partition chamber operate independently without interference, thereby completely eliminating the possibility of pressure water backflow or siphonic backflow.

Built-in security control piping system to prevent theft and damage.

Technical Specifications

Model: HS41W

Manufacturing Standard: JB/T 11151-2011   Nominal Pressure: 1.6 MPa

Connection type: Flange connection   Media temperature: 0–80°C

Connection type: Flange connection   Media temperature: 0–80°C

Connection standard: GB/T 17241.6 Applicable medium: Water

Connection standard: GB/T 17241.6 Applicable medium: Water

Material List