Conventional Brackish Water Reverse Osmosis RO Membrane Elements-LP series

Low-Pressure Brackish Water Reverse Osmosis RO Membrane Elements are mainly used for brackish water desalination. They feature low operating pressure, high water production, high salt rejection, and stable performance. Suitable for surface water and low-salinity groundwater, they can be used for drinking water purification and pure water production in industries such as electronics and power. By reducing the investment in pumps, pipelines, vessels, and other equipment, as well as lowering the operating costs of RO systems, these membranes help improve overall economic efficiency.

Product Advantages of LP Reverse Osmosis RO Membranes:

  • Low energy consumption while maintaining high water production and high salt rejection
  • Membrane sheets use an oxidation-free treatment process, ensuring stability and long service life
  • Suitable for a wide range of water quality conditions and temperature environments

Low Pressure Reverse Osmosis Membrane Operating Conditions

  • Maximum Pressure for a Reverse Osmosis membrane: 41 bar (600 psi)
  • Maximum Operating Temperature: 45°C (113°F)
  • Maximum Pressure Drop per Membrane Element: 1.0 bar (15 psi)
  • Continuous Operation pH Range: 2–11
  • Chemical Cleaning pH Range: 1–13
  • Maximum Feed Water SDI (SDI15): 5.0
  • Maximum Free Chlorine Concentration: <0.1 ppm

Notes:

  • Flow per membrane element may vary, but the variation does not exceed ±15%
  • Variation in effective membrane area does not exceed ±4%
  • Stable reverse osmosis desalination membrane rejection is generally measured after 24–48 hours of continuous operation, depending on feed water quality and operating conditions

APPLICATION

reverse osmosis ro membrane application

Suitable for desalination of feed water with TDS of 2,000–8,000 ppm

  • Surface water
  •  Reclaimed water
  • wastewater. 

This reverse osmosis RO membrane can be applied for pure water production 

  •  Textiles
  • Petrochemicals
  • Chemicals
  • Beverages
  • Electronics.

MODEL

Type Membrane Model Active Area Ft(m3) Flux gpd(m3/d) Minimum Rejection Stablized Rejection Rate(%) Pressure psi(MPa) Solution NaCL(ppm) Recovery
LP
LP-4040-82
82(7.6)
2,050(7.8)
99.3
99.5
225(1.55)
2000
15
LP
LP-8040-400
400(37)
10,500(40)
99.3
99.5
225(1.55)
2000
15

Test Conditions: 1.55 MPa (225 psi), 25°C (77°F), 2000 ppm NaCl, pH 8, Recovery 15%

DETAILS

CHINA SUPPLIERS STATUS

According to the forecast by the China Membrane Industry Association, the total output value of China’s membrane industry exceeded USD 50 billion in 2022, is expected to reach USD 70 billion by 2025, and USD 82 billion by 2027.
With strong policy support and growing market demand, domestic reverse osmosis (RO) membranes are expected to achieve further improvements in technology, production capacity, and reverse osmosis ro membrane market share, showing a clear trend toward import substitution.
Overall, China’s brackish water reverse osmosis membrane sector is experiencing rapid development. Domestic manufacturers have made significant progress in R&D, production capacity, and competitiveness, and are expected to gain a larger share in the global market in the coming years.

FAQ

What is the minimum order quantity (MOQ) for your 8" RO membrane elements?

For neutral carton packing, we can accept an MOQ of 10 pcs for your own brand.

Yes, we have produced 1,500 pcs per single order for a customer in the Middle East.

If you can send us the actual sample, we will analyze it and produce it for you. For example, high-temperature membranes for hemodialysis water treatment.

Yes, we provide a free goods inspection service. If your supplier is within 200 km of our company (Chengdu), even the transportation cost will be covered by us. If the distance is more than 200 km, only the transportation and hotel costs will be borne by you.

Yes, whether they are water- or wastewater-related products, we can source them for you. We have been working in the water and wastewater fields for more than 10 years.

RELATED PRODUCT

RELATED PRODUCT

Scroll to Top

Send your inquiry today