Payment & Shipping Terms:
|Theory:||Vacuum Pump||Structure:||Diaphragm Pump|
|Standard Or Nonstandard:||Nonstandard||Fuel:||Electric Power|
|Pressure:||High Pressure||Application:||Reverse Osmosis System; Purifier; Filter|
Pump smooth and beautiful, no scratches rust, no cracks and other damage.
Paste reliable nameplate, stickers in the correct position without defects, with manufacturers information and model specifications.
3. Stastic Pressure Test
Applying pressure 1.2MPa pump packing 15 minutes without leakage.
4. Water Hammer test
At 0 ~ 1.04 MPa working pressure 10 million times the impact test may not be leaking water seepage.
5. Bursting Pressure Test
When the pump pressure ≥2.76MPa no deformation damage, no leaks.
6. Self-priming Height
PP assemblied before configuring pumps, vertical self-priming height ≥2m.
7. No-load Current
24VDC, the water pressure water pressure 0.2MPa open current ≤0.35A.
Self-priming height 2m, completely block the pump current is less than the nameplate rated current.
Self-priming height of 2m, the outlet pressure of 0.5MPa, flow ≥0.85 / min.
10. Max Pressure Test
Self-priming height 2m, sealing pressure ≥0.8MPa.
11. Noise Test
Water pressure 0.2MPa, the water pressure is the maximum pressure at 0.5MPa and noise ≤50dB.
12. Electrical Strength
AC500V Length 1min no breakdown, no flashover.
13. Temperature Rising Test
After the outlet pressure 0.5MPa, continuous 24h, surface temperature ≤50K.
14. Terminal Strength
Terminals withstand axial extension 10 seconds 40N pull without loosening no loss.
15. Power Cord
Length not less than 285mm, to withstand 40N pull 10S displacement of less than 2 mm.
16. Pump life test
Self-priming height of 2m, the outlet pressure of 0.5MPa, the pump can work more than 2000h.
17. On-off test
Outlet pressure block 90% of start and stop pumps 100,000 times to work properly.
Ceiling voltage: DC24.0V
Operating voltage: DC20.0V-25.0V
Fixing current: ≤ 0.7A
Open water flow: ≥1.4LPM
Rated power: 20W
Working power: 17W
Pump pressure: ≤ 0.6MPa
Working noise: ≤50dB
Restart voltage: DC20.0V
Head: ≥ 4m
Working environment temperature: 5 ℃ ~ 30 ℃
Storage temperature: 0 ℃ ~ 45 ℃
Work environment humidity: 30% RH ~ 85% RH
Storage environment humidity: 10% RH ~ 90% RH
Overall dimensions: Φ54mm * 110mm
Inlet pipe diameter: Φ6.3mm (1/4 interface)
Outlet diameter: Φ6.3mm (1/4 interface)
Net weight: 430g
Working medium: pure water
Life: ≥ 30000TIMES
The purpose of the reverse osmosis booster pump is to increase water pressure going into the RO unit.
Reverse osmosis is a pressure-driven process. Small residential RO units will theoretically operate on very low pressure--down to 35 psi, according to some membrane makers--but the reality is, you won't get a lot of water and the product water quality will be compromised if the unit runs below 45 psi. Low inlet pressure makes the unit produce more reject water, produce less drinking water, fill the storage tank more slowly, and produce lower quality water.
RO units run well on typical city water pressure of 60 psi, but they run even better with a small pump to boost the pressure to 80 psi or higher.
The picture above shows the three essential elements of the RO booster pump. The white object at left is the transformer. It plugs into a standard wall outlet and converts to the voltage (most commonly 24 volts) required by the pump. The large object is the pump itself. The third device is the pressure switch. It monitors the water pressure in the RO unit's storage tank and turns the pump off and on in response to storage tank pressure. The most common shutoff pressure for undersink home RO units is 40 psi.
The standard pump setup is shown above. The function of the pressure switch in the tank line is to shut off current to the pump when the tank pressure reaches a preset level. Default pressure settings usually provide around 80 psi pressure going into the RO unit and shut off production when tank pressure reaches 40 psi. These settings can be adjusted, but it's usually best to leave them at factory setting.
Do You Need a Booster Pump?
Most city water reverse osmosis users have enough city water pressure to run their RO unit nicely and they do not need a booster pump. For example, if your city water pressure is 60 psi or more, there is little to be gained by adding a booster pump. If your pressure is 50 psi or less, however, a pressure boost pump will give your RO unit more zip. You'll have more water, at a higher pressure, in the storage tank, and the tank will fill faster. The increased pressure will also improve the economy of the unit (it will run less reject water to drain) as well as the quality of the water. RO units thrive on pressure.
Are All Pumps the Same?
Manufacturers often designate pumps by the gallon-per-day output of the RO unit. With Surflo® 50GPD pump pictured above, the recommendation is for use with units with membranes that put out up to 50 gallons per day. For larger membranes, another model, Surflo® 75GPD, is recommended.