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PULSATION DAMPENERS
WHAT ABOUT THEM
DAW automatic diaphragm pulsation dampeners feature solid build and high performance.
They are fitted to the discharge line of diaphragm pumps in order to smooth pulsating flows and can be used with liquids having apparent viscosity of up to 50.000 cps (at 20°C) even if containing suspended solids of considerable size.
DAW dampeners automatically adapt to system conditions without the need for manual adjustment or calibration.
The ability to minimise pulsations, vibrations and water hammer means that this component provides excellent protection and smooth system
flow. The huge choice of construction materials allows selection of optimum chemical compatibility with the fluid and/or environment without neglecting the temperature range.
Dampeners are also available for use in potentially explosive atmospheres (ATEX certification).
HOW IT WORKS
The compressed air entering the back-pressure chamber behind the diaphragm creates a pneumatic cushion that adjusts automatically to
compensate the shock produced by the pressure pulse of the fluid generated by the pump.
| TABLE CODE |
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| 1 | 2 | 3 | 4 | 5 |
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| Dampener model | Dampener body |
Air side diaphragm |
Product side diaphragm |
Zone |
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DESCRIPTION OF THE DAMPENER
Diaphragm pulsation dampeners consist of a pneumatic actuator connected to the new generation diaphragm (Long Life profile). The sturdy outer body forms the actuator’s compressed-air chamber for suppressing pressure surges on one side of the diaphragm and the chamber through which the fluid flows on the other.1 = expansion opening
2A = air-side diaphragm
2B = fluid-side diaphragm
3 = automatic pneumatic valve
4 = compressed-air chamber
INSTALLATION
Diaphragm dampeners should be installed on the discharge side of pneumatic pumps or where pressure surges in the fluid occur.
Via Giolitti, 15 36056 Tezze sul Brenta (Vi) Italy Partita IVA 00386730246
Ph. +39 0424 878080 Fax +39 0424 878140 email: arrow@zp-arrow.com - www.zparrow.com
Air-operated pneumatic piston pumps and double diaphragm for products for medium/high viscosity - Hot splicing press - Static dischargers