The Pressure Reducing Oblique Landing Valves for installation on wet risers in buildings for fire fighting purposes
Description
The pressure reducing oblique landing valves are suitable for installation on wet risers in buildings for fire fighting purposes, permanently charged with water from a pressurized supply.
The landing valves are pressure reducing type designed to provide a range of outlets pressure (4 bar - 12 bar). The landing valves are classified under high pressure and are suitable for use at nominal inlet pressure up to 20 bar.
Specification
| Valve Type | Oblique, Pressure Reducing, Flanged Inlet |
| Pressure Rating | High Pressure Valve |
| Nominal Size | DN50 |
| Working Pressure | 20 Bar Maximum |
| Test Pressure | Valve Seat Test at 22 Bar; Valve Body Test at 30 Bar |
| Flange Drilling | BS4504 Part:2:1974 Table:16/21 |
| Min. Water Flow Rate | 8.5 L/S at 4 Bar Outlet Pressure |
| Min. Valve Pressure Regulating | 4 Bar - 12 Bar |
Features
Valve body material made of copper alloy to EN 1982
Hand wheel material made of grey cast iron to BS EN 1561
Blank cap material made of copper alloy to EN 1982
Possible to replace the gland seal when under pressure with the valve fully closed
Disc facing rubbers are of replaceable type
The valve is provided with a strap and pad lock so that the hand wheel can be secured to counter unauthorized use
The hand wheel is black painted and valve body to red
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