LP21-4040 | Vontron Reverse Osmosis Membrane 4" - 2800 GPD

Maximize your water plant's efficiency with the Vontron LP21-4040 Reverse Osmosis Membrane, the industry standard for commercial and industrial water purification in Pakistan. The "LP" stands for Low Pressure, meaning this polyamide composite membrane delivers high permeate flow and superior salt rejection without requiring the extremely high operating pressures of older generation membranes.

Designed for the desalination of brackish water, surface water, and ground water, the LP21-4040 is the heart of successful mineral water plants and industrial boiler feed systems. It features an impressive production capacity of 2,400 Gallons Per Day (approx. 9,100 Liters/day) and a stable salt rejection rate of 99.5%. Its standard 4-inch diameter x 40-inch length ensures compatibility with almost all standard stainless steel or FRP membrane housings.

Frequently Asked Questions:

Q: What is the production capacity in liters?

• A: The rated capacity is 2,400 GPD. In liters, this is approximately 9,000 liters per day under standard test conditions. However, actual flow depends on your feed water temperature, pressure (approx. 225 psi), and TDS levels.

Q: What is the difference between LP and ULP series?

• A:
  • ULP (Ultra Low Pressure): Designed for very low salinity water (tap water) at very low pressures (150 psi). High flow but slightly lower rejection.
  • LP (Low Pressure - This Model): Designed for brackish water with higher TDS. It operates at slightly higher pressure (225 psi) but offers higher salt rejection (99.5%) and durability against fouling compared to ULP.

Q: Can I use this for Seawater desalination?

• A: No. The LP21 series is for Brackish Water (BW) up to approx. 10,000 ppm TDS. For seawater (35,000+ ppm), you must use the Vontron SW (Seawater) series membranes, which are constructed to withstand much higher pressures (800+ psi).

Buy Now: Beware of counterfeits. Order the authentic Vontron LP21-4040 Membrane exclusively at Kamadi Pakistan for guaranteed performance, fresh serial numbers, and expert technical support!