Guangzhou Guanwo Valve Manufacturing Co., Ltd.

Guangzhou Guanwo Valve Manufacturing Co., Ltd.

Model LHS-741X & LHS743X Low-resistance Backflow Preventer, also known as direct flow low-resistance backflow preventer, anti-backflow pollution check valve, anti-pollution isolation valve and pipeline backflow prevention device
Water Control Valve Series

Model LHS-741X & LHS743X Low-resistance Backflow Preventer, also known as direct flow low-resistance backflow preventer, anti-backflow pollution check valve, anti-pollution isolation valve and pipeline backflow prevention device

DN40-600mm

Execution Standard

GB, JIS, ASTM, BS, GOST, DIN

Drive Type

Manual, pneumatic, electric, hydraulic, electromagnetic, self operated

Application Industry

Municipal tap water supply, building water supply and drainage, commercial building water supply, fire water supply, hospital water supply system, water treatment engineering, reclaimed water reuse, landscape water supply, supporting equipment for non-negative pressure water supply, industrial and mining water supply

Material

Carbon steel A105 cast steel WCB ductile iron QT450 stainless steel 304 316 2205 CF8 CF3M

Model

LHS741X-10Q LHS741X-16Q LHS741X-10P LHS741X-16P LHS743X-10Q LHS743X-16Q LHS743X-10P LHS743X-16P LHS743X-10C LHS743X-16C

Model LHS-741X & LHS743X Low-resistance Backflow Preventer features ultra-low head loss. It adopts hydraulic control to form air isolation, effectively preventing medium backflow and avoiding drinking water pollution. It supports horizontal and vertical installation with compact structure.
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Technical Specifications

Model LHS-741X & LHS743X Low-resistance Backflow Preventer, also known as direct flow low-resistance backflow preventer, anti-backflow pollution check valve, anti-pollution isolation valve and pipeline backflow prevention device Technical Specifications

Water Control Valve Series

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