Shock absorber with bladder DDV / DDH
For drinking and industrial water
The damper consists of a cylindrical welded steel vessel protected inside and out by various coatings. The vessel is fitted with a caoutchouc bladder, which is fixed at the top of the vessel. The sieve plate at the fluid connection prevents any damaging of the bladder when emptying or when the damper is filled only with gas.
The connection to the pressure pipe is carried out via the connecting flange at the lower section of the accumulator. The damper is available for vertical or horizontal operation.
Before commissioning, the damper must be precharged to a previously calculated nitrogen pressure level compressing the bladder in the vessel.
At the beginning of the pumping process, water penetrates into the blader and compresses the gas around the bladder. With increasing pressure, the water compresses the gas filling up to the static or dynamic pressure of the installation.
When suddenly disconnecting the pump(s), the pressure drops in the pipe. The damper returns the stored water volume to the pressure pipe. After having reversed the direction in the column, the water returns to the damper and compresses the gas again. These processes are repeated as many times as necessary until the system pressure is again stabilized and the gas and water pressure are in balance.
- OLD 0450 - Shock absorber series DDV-CE 100 to 5000 L-16 Bar (1.2 MiB)
- OLD 0454 - Shock absorber series DDV-CE 50 L-16 and 25 Bar (275.7 KiB)
- OLD 0455 - Shock absorber series DDV-CE 100 to 5000 L-25 Bar (136.9 KiB)
- OLD 0457 - Shock absorber series DDV-CE 100 to 5000 L-40 Bar (1.2 MiB)
- OLD 0465 - Shock absorber series DDH-CE 500 to 5000 L-12 Bar (257.6 KiB)
- OLD 0470 - Shock absorber series DDH-CE 100 to 5000 L-25 Bar (256.6 KiB)
- OLD 0477 - Shock absorber series DDH-CE 100 to 5000 L-40 Bar (256.6 KiB)
Stand prolongation
OLD 1140 - Stand prolongation (325.8 KiB)
Gas side
OLD 1160 - Tester and pressuriser VG U (299.8 KiB)
For pressures up to 40 bar
OLD 1120 - LED Water level display (212.2 KiB)
For pressures from 40 bar
OLD 1115 - Magnetic level indicator (330.7 KiB)
OLD 1116 - Magnetic switch (115.1 KiB)