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Pulsation dampener ALHP

Pulsation dampener ALHP. Inline pulsation dampner. Absorption is made by the deformation of hose controlled by compressed air Best result when the pick of maximum pulsation is +- 5 bar. With 75% of outlet pressure air pressure input, pulsations absorption can be as much as 90%.

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Pulsation dampener ALHP

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  1. Pulsation dampener ALHP Inline pulsation dampner • Absorption is made by the deformation of hose controlled by compressed air • Best result when the pick of maximum pulsation is +- 5 bar • With 75% of outlet pressure air pressure input, pulsations absorption can be as much as 90%.

  2. Pulsation dampener ALHP • This dampener is design to fit at the hose pumps outlet. • The pulsation damper is made with a polyamide reinforced hose available in 3 qualities: Natural Rubber (NR), Nitril (NBR) and EPDM. • This hose is situated inside a steel cylindrical hose filled up with air (cf. drawing). • The parts in contact with the pumped fluid will be, as on the hose pump, the hose and the inserts. • The inserts are also available in 3 qualities: 316L SS, PPH or PVDF. • The maximal pressure inside the hose 16 bars • Maximum air pressure 10 bars. • The advantages of this pulsation damper are: • reduction of the pulsation of the pump • reduction of vibration and water hammer in your piping • easy assembling because of the in line construction • few parts in contact with the fluid • Pulsation damper operation: • The filling up of the pulsation damper with dry air is executed by the « T » located on the high point of the pulsation damper (cf drawing). • The air pressure inside the pulsation damper must be equal to 2/3 of the outlet pressure of the pump. • The pressure setting is executed with a pressure gage reducer supplied with the pulsation damper. • The operate maximum pressure of the pulsation damper is 10 bars (relief valve). • A second gage could be installed on the pulsation damper (fitting ¼’’) (cf. drawing).

  3. AIR CUSH

  4. Pulsation dampner Guideline capacity dampener Volume dampener = V1 x Pd V1 [ l/bar] ALH10 0.05 ALH15 0.2 ALH20 0.3 ALH25 0.8 ALH32 1.4 ALH40 1.5 ALHX40 2.5 ALH50 5 ALH65 7,5 ALHX80 10 ALH80 16 ALH100 33 ALH125 66 For the small pump, you may use a piece of closed pipe, (at least the ID than the hose) placed on a T connexion at the outlet of the pump. This pipe length will be a 2/3 of the pump hose size. Example: on ALH25: 75 cm This system reduce the pulsation by 65% If not enough add 2/3 of the pulsation pressure in air pressure Mini 2X hose ID V1 volume [ l/bar] Pd Max discharge pressure [bar] Example: ALH50 with pick of pulsation at 5 bars: 5 (l/bar) x 5 Bars = 25 liter tank

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