1812 75 GPD Vontron Reverse Osmosis Membrane

1812 75 GPD Vontron Reverse Osmosis Membrane


SKU: MEM75V Category:


Independently developed by VONTRON, the Reverse Osmosis Membrane element ULP1812-75 is designed for the treatment of low-salinity water resources such as tap water, well water, etc. Working under extra-low pressure, it is applicable to water purifying devices for residence, hospital, and laboratory.

Model Average Permeate (GPD) Stable Rejection (%) Min. Rejection (%)
ULP1812-75 75 97.5 96




Notes: Permeate of a single element may vary within [-20%] ~ [+20%]

Dimensions: 1.0 inch = 25.4 mm


  • Testing Pressure ………………………………… 60 psi (0.41MPa)
  • (0.41MPa) The temperature of Testing Solution ……………….. 25℃
  • The concentration of Testing Solution (NaCl) ……… 250 ppm
  • the pH of Testing Solution ………………………….. 6.5~8.5
  • Recovery of Single Element……………………. 15%


  • Any specific application must be limited within the Operating Limits and Conditions. We strongly recommend you to refer to the latest edition of technology manual and design guide prepared by Vontron Membrane Technology Co., Ltd., or consult experts proficient in reverse osmosis membrane technology. In case the customer failed to follow the specified operational requirements in the manual, Vontron Membrane Technology Co., Ltd. will assume no liability for all results.
  • The permeate flow listed in the table is the average value. The permeate flow of single membrane element is within a tolerance not exceeding ±20% of the nominal value.
  • All wet-type membrane elements have been strictly tested before leaving the factory and treated with the 1.0% sodium hydrogen sulfite (An antifreeze solution of 10% propanetriol required in winter) for storage purpose, then vacuum-packed with a plastic bag, and further packed in carton boxes. In order to prevent the bacterial multiplication during the storage, transportation and system standby, it is highly recommended to soak the membrane elements with the protective solution (prepared with RO permeated water) containing 1.0% sodium hydrogen sulfite (food grade).
  • Discharge the permeate water produced during the first hour after system start-up.
  • During storage time and operation time, it is strictly prohibited to dose any chemical medicament that may be harmful to membrane elements. Vontron Membrane Technology Co., Ltd. assumes no liabilities for any above-mentioned misconduct.


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