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300X Slow Closing Check Valve
Product overview
300X Slow-closure check valve is an intelligent valve installed at the pump outlet of high buildings water supply system and other water supply systems to prevent media from flowing back and phenomena of water hammer and water hitting. The valve even possesses functions of electric valve, check valve and water hammer eliminator, which can effectively improve the safety and reliability of the water supply system.It also integrates the technological principles of slow opening, quick closing and slow closing to eliminate water hammer, in order to prevent generating water hammer of opening the pump and water hammer of sto-pping the pump. The valve can switch automatically in accordance with the rules of pumps as long as you operate switch button on the pump motor, with large flow and small pressure loss. It is applicable to valves of less than DN600mm.
Product Features
1. It should be installed horizontally
2. Before installation, the sundries inside the pipe network should be cleaned to ensure the flexible movement of valve core
3. A stop valve of the corresponding size shall be installed at the position where the water source can be cut off during maintenance of the check valve
4. Before and during the commissioning of the pipe network, the check valve should be kept clean inside and should not enter the debris due to improper construction
5. Debugging: when the valve leaves the factory, the needle valve and ball valve are all closed. Use the clockwise valve to rotate 2 and a half circles anticlockwise, and the ball valve is fully opened. If water hammer is found, close the ball valve slightly and open the needle valve anticlockwise to eliminate the water hammer phenomenon.
Execution Standard
Face to Face：GB/T12221-2005
Flange end：GB/T9113
Pressure-temp：GB/T12224-2005
Test & check：GB/T13927-2008
Performance Parameter
Nominal diameter：DN50~800mm
Nominal Pressure：PN1.0～1.6MPa
Applicable media：water
Applicable temperature：0≤80℃
Main materials：WCB
