Pulsation Dampener

Pulsation dampeners help to remove a high degree of pulsing and surging in the line

In some applications pulsation is a problem, typically with most of the metering pumps. Pulsation dampener helps remove a high degree of pulsing and surging in the line. They only work if installed properly, in the right order in the line, and with the right pressure bladder to offset the incoming pulsing. It is important that the directions supplied by the manufacturer regarding recommended set pressure and location of the dampener be adhered to.

According to :

 97/23/CE – PED

  94/9/CE – ATEX Group II Cat 2

  ASME VIII° div.1 STAMP

 GOST-R (Russia)

SELO (China)

 

HST-Line

TypeMax. Pressure (PSI)Nitrogen Volume (Cu. In.)Max N2 Preload (PSI)H (in)D (in)B (in)C (in)Hydraulic ConnectionMax Flow (GPM)Weight (lb)Drawing No.
AQU-HST0.054351.13.053045.83.862.362.680.873/8" NPT9.252.431
AQU-HST0.14351.17.323045.85.553.143.700.87M 18X1.511.894.631
AQU-HST0.354351.121.363045.85.983.983.940.87M 18X1.513.217.051
AQU-HST0.54351.130.513045.86.894.884.720.87M 18X1.515.8511.021
AQU-HST0.74351.142.723045.88.583.943.150.87M 18X1.514.5312.121
AQU-HST0.84351.148.823045.87.285.433.350.87M 18X1.515.8512.792
AQU-HST1.34351.179.333045.89.134.927.090.87M 18X1.514.5317.421
AQU-HST1.54351.191.543045.810.635.436.300.87M 18X1.514.5319.182
AQU-HST2.34351.1140.353045.813.395.436.490.87M 18X1.514.5323.152

FeaturesMeasurements
Maximum working pressure (PS):300 Bar
Test pressure (PT):PS x 1.43
Maximum Precharge Admissible210 Bar
BodyPainted Carbon Steel
Standard Nitrogen Valve⅝” UNF
Constructive MethodologyTwo different parts joined with a special threading that under condition of dynamic pressure tends to self-block.
Working Temperature for Standard ExecutionFrom - 20°C to + 90°C
Standard DiaphragmCan be used with mineral oils and non corrosive fluids.
Installation PositionIn every position.
Recommended Compression RatioP2/P0 = 2.5
Maximum Compression RatioP2/P0 = 6
Mechanical LifeThe number of cycles is inversely proportional to the increase compression ratio.
Also Available-HST..LT with diaphragm suitable for working temperatures to –40 °C .
-HST .. M rechargeable with nitrogen valve M28x1.5.
-HST .. V not rechargeable with a fixed nitrogen preload in the factory.
-HST .. S separator of fluid
- Hydraulic execution ½” NPT
- Special high pressure execution

HSTX-Line

TypeMax. Pressure (PSI)Nitrogen Volume (Cu. In.)Max N2 Preload (PSI)H (in)D (in)C (in)B (in)Hydraulic ConnectionWeight (lb)Drawing No.
AQU-HSTX0.053045.83.052175.6 3.942.360.431.383/8" NPT1.541
AQU-HSTX0.12175.6 / 3045.87.321522.9/2175.65.433.150.91-1/2" NPT4.851
AQU-HSTX0.352175.6 / 3045.821.361522.9/2175.65.983.940.91-1/2" NPT8.161
AQU-HSTX0.72175.6 / 3045.842.721522.9/2175.68.463.940.91-3/4" NPT11.021
AQU-HSTX0.82175.6 / 3045.848.821522.9/2175.67.095.430.913.033/4" NPT13.452
AQU-HSTX1.52175.6 / 3045.891.541522.9/2175.610.635.430.916.691" NPT19.182
AQU-HSTX2.32175.6 / 3045.8140.351522.9/2175.614.175.430.916.691" NPT23.152
AQU-HSTX4.52175.6 / 3045.8274.611522.9/2175.614.577.090.71-1" NPT52.913
AQU-HSTX102175.6 / 3045.8610.241522.9/2175.629.137.090.71-1-1/4" NPT99.24

FeaturesMeasurements
Maximum working pressure (PS):150 / 210 Bar
Test pressure (PT):PS x 1.43
BodyAISI 316L SS
Constructive MethodologyTwo or three different parts united with a special threading that under condition of dynamic pressure tends to self-block.
DiaphragmDifferent types in relation to the fluid used:
- Perbunan (NBR)
- Butile
- Nitrile (NBR)
- Poliuretano
- EPDM
- Viton
Installation PositionIn every position.
Recommended Compression RatioP2/P0 = 2.5
Maximum Compression RatioP2/P0 = 4
Mechanical LifeThe number of cycles is inversely proportional to the increase of the compression ratio. For pulsation dampener applications, the nitrogen value must be from 60% to 80% of the working pressure also in relation with the type of pump and the working temperature.
Also AvailableExecution for working pressure till 1300 bar.
- Alloy 20 / Hastelloy Body