The WELSON model 4001 economical swing check valve with gunmetal body for low-pressure water supply system in buildings.
It also equipped with a high synthetic rubber seal to eliminate slamming during shutoffs.
This valve requires a low pressure to open and can be installed in both horizontal and vertical lines with upward flow.
The available model sizes are from 1-1/4″ to 4″ which all are mated to the system by the screwed joint inlet.
The 4001 check valve is the traditional non-return valve to be installed in a system where flow in one direction is desired.
The valves design is more compacted for easy installation and also incorporates a large valve bore which helps to eliminate jamming or clogging while in operation. The arrow on the side of the valve indicates the flow direction.
Service Medium: Water (Fresh / Seawater)
Working Pressure: 0-16 BAR (Non-Shock at normal atmospheric temperature)
The available sizes for model 4001 check valve are 1-1/4″ to 4″.
All valves are manufactured with female BSP screwed joint inlet.
The main uniform body of valve is casted from high-quality gunmetal material.
Assembled together by selected stainless steel components to enable this valve to have good corrosion-resistant.
Valve Gunmetal Material: BS EN 1982: 2008 CC491K
Valve Component: BS EN 10088-1: 2014 Grade 1.4301(304) / 1.4401 (316)
This valve has been approved by the Hong Kong Water Service Department under its General Acceptance Scheme.
Please contact us for further details.