Water Hammer Cushion

Water hammer is usually recognized by a banging or thumping in water lines. The noise can occur when the flow of moving water is instantaneously stopped by a closing valve, or there are loose pipes in the wall, or there is a worn out washer on a faucet. The sudden stop of water, or a stutter caused by a loose or bad washer, results in a pressure spike behind the valve which acts like a tiny explosion inside the pipe. This pressure spike will create shock waves in the water that will reverberate throughout the plumbing system, rattling and shaking pipes, especially loose pipes, until it is absorbed. Normally, a sufficient pocket of air will absorb such a pressure spike, but if no pocket of air is present, expensive fixtures and appliances within the plumbing system will be damaged as they are left to absorb this pressure spike. (1) Model Name : SWHC-B Type (Nitrogen Gas Type) Size : 40A~200A Applicable Fluid : Water Working Pressure : 10kg/cm2 Applicable Temperature : 60°C Hydraulic Test : 18kg/cm2 Specification Model(SWHC-B) Size Vertical Type Horizontal Type L D H L D H SWHC-B40 40A(1 1/2") 160 90 240 185 114 220 SWHC-B50 50A(2") 160 90 250 185 114 240 SWHC-B65 65A(2 1/2") 160 90 260 185 139 250 SWHC-B80 80A(3") 185 114 280 205 139 270 SWHC-B100 100A(4") 185 114 290 205 139 280 SWHC-B125 125A(5") 205 139 310 300 169 310 SWHC-B150 150A(6") 205 139 330 300 169 320 SWHC-B200 200A(8") 300 216 400 420 216 350 (2) Model Name : SWHC-P Type (Spring Type) Size : 40A~200A Applicable Fluid : Water Working Pressure : 10kg/cm2 Applicable Temperature : 60°C Hydraulic Test : 18kg/cm2 Specification Model(SWHC-B) Size Vertical Type D H SWHC-P40 40A(1 1/2") 77 200 SWHC-P50 50A(2") 89 210 SWHC-P65 65A(2 1/2") 89 225 SWHC-P80 80A(3") 114 230 SWHC-P100 100A(4") 114 245 SWHC-P125 125A(5") 139 260 SWHC-P150 150A(6") 169 270 SWHC-P200 200A(8") 216 340