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High Pressure RO Pump
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  • Desalination High Pressure Pump
High-pressure RO Pump
Five different models of high pressure RO pumps

High Pressure RO Pump for Low Viscosity and Corrosive Fluids

The high pressure RO pump is a plunger-type volumetric pump specifically designed for seawater desalination. It employs a compact structure and simplified design that eliminates the need for a frame or belt drive, allowing for both horizontal and vertical installation, making it suitable for limited spaces. This pump delivers a constant flow rate of liquid during each working cycle, ensuring that desalination facilities receive a stable and reliable supply of seawater. Its modular design supports the operation of multiple pumps in series, providing uninterrupted water supply and offering a sustainable solution for seawater desalination systems. This pump is particularly suitable for handling low-viscosity and corrosive fluids, and is widely used in the field of seawater, brine, wastewater and other reverse osmosis treatment operations.

  • Specification
  • Working Principle
  • Videos
Specification
  • An AHPP 0.6–1.0 high pressure RO pump

    AHPP 0.6–1.0

  • An AHPP 1.5–3.5 high pressure RO pump

    AHPP 1.5–3.5

  • An AHPP (W) 5.1–10.2 high pressure RO pump

    AHPP (W) 5.1–10.2

  • An AHPP 11–13 high pressure RO pump

    AHPP 11–13

  • An AHPP 16–22 high pressure RO pump

    AHPP 16–22

  • An AHPP 21–46 high pressure RO pump

    AHPP 21–46

  • An AHPP 53–92 high pressure RO pump

    AHPP 53–92

AHPP 0.6–1.0

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Table 1: AHPP 0.6–1.0 Technical Parameters
Pump size AHPP 0.6 AHPP 0.8 AHPP 1.0
Code number AHPP 180B3048 180B3037 180B3049
Code number AHPP ATEX 180B3148 180B3137 180B3149
Geometric displacement cm3/rev. 4.07 5.08 6.30
in.3/rev. 0.25 0.31 0.38
Pressure
Max. outlet pressure continuous barg 83
psig 1200
Min. outlet pressure barg 20
psig 290
Inlet pressure continuous barg 0.5–5
psig 7.3–72.5
Max. inlet pressure peak barg 10
psig 145
Speed
Min. speed continuous rpm 700
Max. speed continuous rpm 3450
Typical flow
1000 rpm at max. pressure m3/h 0.22 0.29 0.36
1500 rpm at max. pressure m3/h 0.34 0.43 0.54
1200 rpm at max. pressure gpm 1.18 1.52 1.90
1800 rpm at max. pressure gpm 1.78 2.28 2.84
Technical specifications
Media temperature °C 2–50
°F 36–122
Ambient temperature °C 0–50
°F 32–122
Weight (dry) kg 5.2
lb 11.5
Sound pressure level, LPA 1 m dB(A) 74
Footprint with IEC motor m2 0.1 0.1 0.14
foot2 1.08 1.08 1.51
Typical motor size
Max. speed at max. pressure kW 2.2 3.0 4.0
3000 rpm at max. pressure HP 3 5 5
Torque at max. outlet pressure Nm 5.8 7.2 8.9
lbf-ft 4.2 5.3 6.6
Note: For speeds above 3000 rpm, the pump must be boosted at a pressure of 2–5 barg (29–72.5 psig)

AHPP 1.5–3.5

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Table 2: AHPP 1.5–3.5 Technical Parameters
Pump size AHPP 1.5 AHPP 1.8 AHPP 2.2 AHPP 2.5 AHPP 3.0 AHPP 3.5
Code number AHPP 180B3043 180B3044 180B3045 180B3046 180B3030 180B3032
Code number AHPP ATEX 180B3143 180B3144 180B3145 180B3146 180B3130 180B3132
Geometric displacement cm3/rev. 9.31 10.04 12.52 15.35 17.70 20.54
in.3/rev. 0.57 0.61 0.76 0.94 1.08 1.25
Pressure
Max. outlet pressure continuous barg 83
psig 1200
Min. outlet pressure barg 20
psig 290
Inlet pressure continuous barg 0.5–5
psig 7.3–72.5
Max. inlet pressure peak barg 10
psig 145
Speed
Min. speed continuous rpm 700
Max. speed continuous rpm 3450 3000 3450 3000
Typical flow
1000 rpm at max. pressure m3/h 0.53 0.57 0.73 0.90 1.02 1.19
1500 rpm at max. pressure m3/h 0.79 0.86 1.09 1.34 1.54 1.79
1200 rpm at max. pressure gpm 2.80 3.03 3.83 4.73 5.41 6.30
1800 rpm at max. pressure gpm 4.19 4.55 5.75 7.09 8.12 9.46
Technical specifications
Media temperature °C 2–50
°F 36–122
Ambient temperature °C 0–50
°F 32–122
Weight (dry) kg 8.6
lb 17
Sound pressure level dB(A) 77 77 77 81 81 81
Footprint with IEC motor m2 0.15 0.16 0.21 0.21 0.30 0.30
foot2 1.61 1.72 2.26 2.26 3.23 3.23
Typical motor size
Max. speed at max. pressure kW 5.5 5.5 7.5 7.5 11 11
3000 rpm at max. pressure HP 7.5 7.55 10.0 15.0 15.0 15.0
Torque at max. outlet pressure Nm 13.0 13.9 17.4 21.3 24.5 28.7
lbf-ft 9.6 10.3 12.8 15.7 18.1 21.2
Note: For speeds above 3000 rpm, the pump must be boosted at a pressure of 2–5 barg (29–72.5 psig)

AHPP (W) 5.1–10.2

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Table 3: AHPP (W) 5.1–10.2 Technical Parameters
Pump size AHPP (W) 5.1 AHPP (W) 6.5 AHPP (W) 7.2 AHPP (W) 8.2 AHPP (W) 10.2
Code number AHPP 180B3005 180B3006 180B3007 180B3008 180B3010
Code number AHPP ATEX 180B3105 180B3106 180B3107 180B3108 180B3110
Code number AHPP W 180B3075 180B3076 180B3077 180B3078 180B3080
Geometric displacement cm3/rev. 50.2 63.3 70.3 80.4 100.5
in.3/rev. 3.06 3.86 4.29 4.91 6.13
Pressure
Max.outlet pressure continuous barg 83
psig 1200
Min. outlet pressure barg 20
psig 290
Inlet pressure continuous barg 0.5–5
psig 7.3–72.5
Max.inlet pressure peak barg 5
psig 72.5
Speed
Min. speed continuous rpm 700
Max. speed continuous rpm 1800
Typical flow
1000 rpm at max.pressure m3/h 2.79 3.57 4.01 4.62 5.83
1500 rpm at max.pressure m3/h 4.19 5.36 6.01 6.93 8.75
1200 rpm at max.pressure gpm 14.75 18.87 21.16 24.39 30.82
1800 rpm at max.pressure gpm 22.13 28.31 31.74 36.59 46.23
Technical specifications
Media temperature °C 2–50
°F 35.6–122
Ambient temperature °C 0–50
°F 32–122
Weight (dry) kg 30
lb 66
Sound pressure level dB(A) 78
Footprint with IEC motor m2 0.32 0.33 0.33 0.35 0.43
foot2 3.44 3.55 3.55 3.77 4.63
Typical motor size
Max. speed at max. pressure kW 15.0 18.5 22 22 30
1200 rpm at max. pressure HP 20 20 20 20 25
Torque at max. outlet pressure Nm 70 81 98 112 141
lbf-ft 52 65 73 83 104
Note: For speeds above 1500 rpm, the pump must be boosted at a pressure of 2–5 barg (29–72.5 psig)

AHPP 11–13

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Table 4: AHPP 11–13 Technical Parameters
Pump size AHPP 11/1200 AHPP 11/1500 AHPP 13/1200 AHPP 13/1500
Code number AHPP 180B3212 180B3211 180B3214 180B3213
Code number AHPP ATEX 180B3222 180B3221 180B3224 180B3223
Geometric displacement cm3/rev. 166.4 137.4 197.5 166.4
in.3/rev. 10.15 8.38 12.05 10.15
Pressure
Max. outlet pressure continuous barg 83 70 83 70
psig 1200 1015 1200 1015
Min. outlet pressure barg 10
psig 145
Inlet pressure continuous barg 2–5
psig 29–72.5
Max. inlet pressure peak barg 10
psig 145
Speed
Min. speed continuous rpm 700
Max. speed continuous rpm 1200 1500 1200 1500
Typical flow
1000 rpm at max. pressure m3/h 9.22 7.50 11.07 9.23
1500 rpm at max. pressure m3/h – 11.25 – 13.84
1200 rpm at max. pressure gpm 48.71 39.61 58.51 48.75
Technical specifications
Media temperature °C 2–50
°F 35.6–122
Ambient temperature °C 0–50
°F 32–122
Weight (dry) kg 78
lb 172
Sound pressure level dB(A) 85
Footprint with IEC motor m2 0.48 0.48 0.54 0.54
foot2 5.17 5.17 5.81 5.81
Typical motor size
Max. speed at max. pressure kW – 30.0 – 37.0
1200 rpm at max. pressure HP 40.0 – 50.0 –
Torque at max. outlet pressure Nm 229 166 274 204
lbf-ft 169 123 202 150

AHPP 16–22

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Table 5: AHPP 16–22 Technical Parameters
Pump size AHPP 16/1200 AHPP 16/1500 AHPP 17/1200 AHPP 17/1500 AHPP 19/1200 AHPP 19/1500 AHPP 22/1200 AHPP 22/1500
Code number AHPP 180B3254 180B3250 180B3255 180B3251 180B3256 180B3252 180B3257 180B3253
Code number AHPP ATEX 180B3264 180B3260 180B3265 180B3261 180B3266 180B3262 180B3267 180B3263
Geometric displacement cm3/rev. 234.6 188.3 253.3 197.5 272.3 219.7 310.6 253.3
in.3/rev. 14.32 11.49 15.46 12.05 16.62 13.41 18.95 15.46
Pressure
Max. outlet pressure continuous barg 83 70 83 70 83 70 83 70
psig 1200 1015 1200 1015 1200 1015 1200 1015
Min. outlet pressure barg 10
psig 145
Inlet pressure continuous barg 2–5
psig 29–72.5
Max. inlet pressure peak barg 10
psig 145
Speed
Min. speed continuous rpm 700
Max. speed continuous rpm 1200 1500 1200 1500 1200 1500 1200 1500
Typical flow
1000 rpm at max. pressure m3/h 13.38 10.67 14.57 11.25 15.71 12.55 18.06 14.61
1500 rpm at max. pressure m3/h – 16.01 – 16.88 – 18.82 – 21.92
1200 rpm at max. pressure gpm 70.70 56.40 76.98 59.44 82.98 66.30 95.43 77.21
Technical specifications
Media temperature °C 2–50
°F 35.6–122
Ambient temperature °C 0–50
°F 32–122
Weight (dry) kg 78
lb 172
Sound pressure level dB(A) 84
Footprint with IEC motor m2 0.54 0.58 0.59 0.59 0.76 0.76 0.80 0.80
foot2 5.81 6.26 6.35 6.35 8.18 8.18 8.61 8.61
Typical motor size
Max. speed at max. pressure kW – 37.0 – 37.0 – 45.0 – 55.0
1200 rpm at max. pressure HP 60.0 – 60.0 – 75.0 – 75.0 –
Torque at max. outlet pressure Nm 316 223 343 234 372 263 426 305
lbf-ft 233 165 253 173 275 194 314 225

AHPP 21–46

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Table 6: AHPP 21–46 Technical Parameters
Pump size AHPP 21/1200 AHPP 21/1500 AHPP 24/1200 AHPP 24/1500 AHPP 26/1200 AHPP 26/1500 AHPP 30/1200 AHPP 30/1500 AHPP 38/1500 AHPP 46/1780
Code number AHPP 180B3051 180B3052 180B3054 180B3055 180B3056 180B3057 180B060 180B3062 180B3071 180B3072
Code number AHPP ATEX 180B3151 On request 180B3154 180B3155 On request On request On request On request On request Not available
Geometric displacement cm3/rev. 308.5 256 362 282 389 308.5 444 362 444 444
in.3/rev. 18.83 15.62 22.09 17.21 23.74 18.83 27.09 22.09 27.09 27.09
Pressure
Max. outlet pressure continuous barg 83 70
psig 1200 1015
Min. outlet pressure barg 10
psig 145
Inlet pressure continuous barg 2–5 2.5/3.5–5
psig 29–72.5 36.5/50.8–72.5
Max. inlet pressure peak barg 10
psig 145
Speed
Min. Speed continuous rpm 700
Max. Speed continuous rpm 1200 1500 1200 1500 1200 1500 1200 1500 1500 1700/1780
Typical flow
1000 rpm at max. pressure m3/h 17.80 14.80 21.02 16.36 22.47 17.86 26.05 21.12 26.20 26.29
1500 rpm at max. pressure m3/h – 22.20 – 24.54 – 26.79 – 31.69 39.30 39.44
1200 rpm at max. pressure gpm 94.07 78.18 113.03 86.43 118.71 94.37 137.64 111.60 138.41 138.91
Technical specifications
Media temperature °C 2–50
°F 35.6–122
Ambient temperature °C 0–50
°F 32–122
Weight (dry) kg 105
lb 231
Sound pressure level dB(A) 85 85.3
Footprint with IEC motor m2 0.76 0.76 0.80 0.80 0.83 0.83 0.83 0.83 0.83 1.10
foot2 8.18 8.18 8.61 8.61 8.93 8.93 8.93 8.93 8.93 11.84
Typical motor size
Max. speed at max. pressure kW 55.0 75.0 55.0 75.0 75.0 75.0 90.0 90.0 110.0 110.0
1200 rpm at max. pressure HP 75.0 – 100.0 – 100.0 – 125.0 – – –
Torque at max. outlet pressure Nm 418 355 490 388 527 426 608 498.68 617 546
lbf-ft 308 262 361 286 389 314 449 367.81 455 402

AHPP 53–92

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Table 7: AHPP 53–92 Technical Parameters
Pump model AHPP 53/1500 AHPP 65/1500 AHPP 78/1500 AHPP 86/1700 AHPP 92/1780
Code number 180B7806 180B7807 180B7808 180B7809 180B7810
Geometric displacement cm3/rev. 617 778 888 888 888
in.3/rev. 37.7 47.3 54.2 54.2 54.2
Pressure
Max. outlet pressure (MAWP) barg 83 70
psig 1200 1015
Min. inlet operating pressure barg 2 2.5 3.5
psig 29 36 50
Max. inlet operating pressure barg 5
psig 73
Max. inlet pressure peak barg 10
psig 145
Min. outlet pressure barg 30
psig 435
Speed
Min. speed continuous rpm 700
Max. speed continuous rpm 1500 1700 1780
Flow
Min. flow m3/h 24 32 36 36 36
gpm 106 141 158 158 158
700 rpm at max. pressure m3/h 24 32 36 36 36
gpm 106 141 158 158 158
1000 rpm at max. pressure m3/h 35 45 52 52 52
gpm 154 198 228 228 228
1200 rpm at max. pressure m3/h 42 54 62 62 62
gpm 187 238 275 275 275
1500 rpm at max. pressure m3/h 53 68 78 78 78
gpm 235 299 345 345 345
1700 rpm at max. pressure m3/h – – – 88 88
gpm – – – 387 387
1780 rpm at max. pressure m3/h – – – – 92
gpm – – – – 405
Efficiency
1000 rpm % 88 88 89 89 89
1200 rpm % 89 89 90 89 89
1500 rpm % 89 89 89 88 88
1700 rpm % – – – 88 88
1780 rpm % – – – – 87
Technical specifications
Media temperature °C 2–50
°F 36–122
Ambient temperature °C 0–50
°F 32–122
Weight (dry) kg 196
lb 432
Weight (operation) kg 204
lb 450
Sound pressure level db(A) 84–95 84–95 84–93 84–96 84–96
Footprint with IE3 motor m2 1.49 1.49 1.50 1.50 1.50
foot2 16.0 17.0 16.1 16.1 16.1
Typical motor size
Max. speed at max. pressure kW 132 160 160 200 200
HP 200 250 250 300 300
Working Principle
Schematic diagram of high pressure RO pump

The high pressure RO pump creates periodic volume changes in the pump chamber through the linear motion of a reciprocating plunger, enabling the suction and discharge of liquid. When the main shaft rotates, the plunger within the cylinder reciprocates under the action of the inclined disk. When the plunger moves outward, the volume of the plunger chamber increases, creating a negative pressure that draws in low-pressure water through the inlet of the distribution plate (blue section); When the plunger moves inward, the chamber volume decreases, water is pressurized and delivered through the outlet of the distribution plate to the RO membrane system (red section) to provide sufficient pressure to push water molecules through the membrane while retaining salts and contaminants, thus achieving the desalination process.

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