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Water hammer absorber
Product model：
        WH002 / WH003 water hammer absorber, water hammer absorber is a special pressure storage device for pressurized liquid. In all practical applications, it has been proved that liquids are incompressible, and the compressibility of gases can be used to solve this problem.
 

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Product Highlights
        Diaphragm-like airbag design, split structure, reliable sealing performance, a variety of interface sizes and volumes can be selected, lifting ear protection cover, small size and light weight.
         A separator-like airbag is installed in the pressure-resistant casing of the water hammer absorber. An inert gas (nitrogen) with a pressure of P o is flushed into the air bag through the intake valve until the air bag expands to fill the water hammer absorber with a volume V o. The entire interior space. When the circulating pressure P1 is greater than the preset pressure P o of the gas, the hydraulic valve at the bottom is opened, and the airbag is compressed to V1 due to external circulating pressure.
         If the pressure of the liquid increases to P2, the volume of the gas decreases to V2, and the ribs also rise, which balances the pressure of the liquid, which means that the airbag inside the water hammer absorber has been compressed, and the volume change is OV = V1 -V2. The energy it stores can be used where we need it.
 
Product parameters
Working pressure level:
Maximum working pressure up to 25 bar
Withstand pressure up to 55bar
Temperature and medium: 0 ° C ~ 100C normal temperature water
If there are other operating temperatures or media, please contact the factory.
Interface type and standard: flange connection
Conforms to: GB / ANSI / BSEN / ISO / DIN / JIS

 
Applications
Back pressure impactor
         When a pump is used to transport liquid to a high place, when the pump suddenly loses power, the liquid in the pipe will flow back and accelerate in the pipe.This will cause a water hammer with a destructive force at the check valve at the outlet end of the pump. The longer, the formed water hammer may burst the pipe! The longer the pipe, the longer the fluid accelerates, and the more severe the resulting shock. The installation of Juhan water hammer absorber can effectively absorb such water hammer. At the same time, because Juhan can effectively absorb water hammer in the first time, so that the pressure in the pipeline system is stable.
Send end shock absorber
         As for the circulating water pump, the water hammer and hydraulic shock will naturally occur due to the piston's cyclic movement. During the pump discharge stroke, excess liquid will enter the water hammer absorber, absorbing excess pressure; during the piston recovery, the liquid absorbed in the water hammer absorber will enter the system, thereby replenishing the pressure drop caused by the pump piston recovery , And finally achieve the purpose of stabilizing the system pressure.
Suction end shock absorber
         Without adequate supply, the pump will not be able to achieve its full efficiency. The occurrence of "pitting corrosion phenomenon" is related to the different flow velocity, acceleration and friction of the fluid. If there is insufficient supply at the suction end of the pump, the supply end will form a vacuum under the suction of the pump, which will lead to the occurrence of "hole corrosion phenomenon". The Juhan water hammer absorber is installed at the suction end of the pump, and the water hammer absorber can be used as a buffer pool. If the suction of the water pump is insufficient, the liquid stored in the water hammer will be replenished into the system to ensure that the pump has sufficient suction; if the system supply is too large, excess liquid will enter the water hammer absorber to ensure that the suction end of the pump is stable So as to greatly improve the life of the pump.
 
Eliminates hydraulic shock
         All flowing liquids have kinetic energy. When the fluid is suddenly stopped, the kinetic energy is converted into pressure, which is usually very dangerous. This "water hammer phenomenon" usually occurs on piping systems fitted with quick-closing valves. The "water hammer phenomenon" produces enough power to damage pipes, valves and pumps. There are many reasons for the water hammer phenomenon, such as quickly closing the valve, back pressure shock, starting or stopping the pump, and the system suddenly loses power (such as encountering a power failure).
Energy storage
         If the system encounters a sudden power outage or pump failure, etc., the Juhan water hammer absorber can maintain the pressure of the system for a short time, ensuring that other rotating and working parts can still be lubricated and cooled, thus protecting the equipment well.
Thermal expansion absorption
         If the system is a closed system, when the liquid flows, the temperature of the liquid will rise due to friction or other reasons, and the resulting expansion of the liquid will also increase the pressure of the system. If the pressure rises above the safe pressure of the system, this may cause rupture of the pipeline, failure of the valve, damage to the precision instruments of the pipeline, etc. At the same time, if the system leaks, the liquid in the pipeline may cause permanent damage to people and the surrounding environment. If you choose the appropriate Juhan water hammer absorber, it can absorb the pressure overrun caused by the thermal expansion of the liquid, and ensure the safe operation of the system.
 
Isolation device
         If the pressure parameter of the system is extremely important for the safe operation of the system, and the instrument measuring the parameter is not allowed to contact the fluid in the system, the choice of Juhan water hammer absorber can solve this problem. In this case, the diaphragm of the Juhan water hammer absorber acts as an isolation.
 
 
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