Franklin FWME8040RO-XLP Extra Low Pressure Industrial RO Membrane

Extra Low Pressure 8040 RO Membrane for High-Volume Water Treatment

Your plant treats clean municipal or surface water but still runs brackish-pressure pumps at 225 psi. The Franklin Water FWME8040RO-XLP extra low pressure industrial RO membrane cuts that to 100 psi, producing 11,000 GPD from 440 ft² of active area with 99.2% salt rejection. Tested at 100 psi with 500 mg/L NaCl and rated for feed water up to 2,000 mg/L TDS. 

Cleanflow Utility Supply Company is an authorized Franklin Water Treatment distributor shipping across Canada and the USA.

Quick Specs

• Membrane Type: Thin-Film Composite (TFC), Extra Low Pressure

• Element Size: 8" x 40" (standard 8040 format)

• Active Membrane Area: 440 ft² (40.9 m²)

• Permeate Flow Rate: 11,000 GPD (41.6 m³/d)

• Stabilized Salt Rejection: 99.2%

• Standard Test Pressure: 100 psi (0.69 MPa)

• Maximum Feed TDS: 2,000 mg/L

• Certification: NSF/ANSI 61

Key Features and Benefits

• Operates at 100 psi, less than half the 225 psi a brackish water membrane needs. As a low-energy industrial RO membrane, every vessel in your array runs on a smaller pump with lower electricity draw.

• 440 ft² of active area produces 11,000 GPD, the highest output of any energy-efficient 8040 membrane in the Franklin Water lineup, with 500 more GPD than the BW model from 10% more membrane surface.

• 99.2% stabilized salt rejection on municipal, surface, and groundwater up to 2,000 mg/L TDS. If your source water is clean, this low-operating-cost industrial RO membrane saves you the pressure penalty of running a BW element.

• NSF/ANSI 61 certified for drinking water contact. Operates as an industrial municipal water RO membrane in potable water production, bottled water plants, and second-pass RO systems.

• This 8 x 40 extra-low-pressure membrane element fits standard 8-inch pressure vessels with a 1.12-inch permeate tube, compatible with the BW model and other industry-standard reverse osmosis membranes.

• Cleaning pH range of 1 to 13 and 170 m³/h (74.8 gpm) maximum feed flow support aggressive CIP at industrial volume. Proper cleaning keeps this energy-saving industrial reverse osmosis membrane performing across years of continuous operation.

FWME8040RO-XLP Specifications

Applications

• Municipal water treatment plants treating low-TDS source water

• Large-scale surface water and groundwater treatment

• Industrial bottled water and purified water production

• Second pass RO for pharmaceutical, electronics, and ultrapure water

• Boiler feed water and cooling tower makeup from clean sources

• Food and beverage process water production at the plant scale

• Water reuse and reclamation of treated effluent

• Pre-treatment for industrial deionization systems

Industries

• Municipal water utilities

• Bottled water and beverage production

• Pharmaceutical and biotechnology

• Electronics and semiconductor manufacturing

• Power generation

• Food processing at industrial scale

Buy the Franklin Water FWME8040RO-XLP Online from Cleanflow

When your plant's source water is clean and your operating budget demands lower energy costs, the FWME8040RO-XLP is the large scale low pressure RO membrane to specify. At 11,000 GPD with 99.2% rejection at just 100 psi, it delivers more output than the BW model at a fraction of the pump energy. 

Cleanflow Utility Supply Company is an authorized Franklin Water Treatment distributor. The FWME8040RO-XLP, compatible reverse osmosis system accessories, and replacement parts ship across Canada and the USA. Returns accepted within 30 days at returns.cleanflow.net.

Frequently Asked Questions

Should I choose the 8040 XLP or BW for my plant?

Choose the Franklin Water 8040 XLP membrane when your feed water TDS is below 2,000 mg/L and electricity costs are a major budget line. The XLP operates at 100 psi vs 225 psi for the BW, which means smaller VFDs, lower motor loads, and measurably lower electricity consumption across a multi-vessel array. Choose the BW when your source water exceeds 2,000 mg/L TDS or when you need 99.7% rejection to meet permeate specifications.

How much energy does the 8040 XLP save compared to the BW?

The Franklin Water XLP industrial membrane runs at 100 psi vs 225 psi for the BW. Pump power scales roughly with pressure, so on a 6-vessel array, the XLP can cut pump energy consumption by more than 50%. On a 500,000 GPD plant running 24/7, that pressure difference can save tens of thousands of dollars per year in electricity alone. Exact figures depend on your array size, recovery rate, and local power rates.

Does the XLP produce more or less water than the BW?

More. The Franklin Water FWME8040 XLP produces 11,000 GPD from 440 ft² of active area, compared to 10,500 GPD from 400 ft² for the BW. The XLP 8040 RO membrane has 10% more membrane surface and 500 GPD more output, at less than half the operating pressure.

Can I swap BW elements for XLP in an existing system?

Physically, yes. Both use the same 8-inch pressure vessel, the same 1.12-inch permeate tube, and the same 40-inch length. But this extra-low-pressure 8040 reverse osmosis membrane is rated for feed water up to 2,000 mg/L TDS, not 5,000. If your source water exceeds 2,000 mg/L, the XLP will not perform properly. You also need to re-commission the pump setpoints, since the XLP operates at 100 psi instead of 225 psi.

What pre-treatment does the FWME8040RO-XLP extra-low-pressure industrial RO membrane need?

Same pre-treatment train as any industrial RO system: multimedia or ultrafiltration for SDI control, 5-micron cartridge filtration as a final guard, and dechlorination via carbon beds or sodium bisulfite dosing. Cleanflow stocks compatible reverse osmosis filters and cartridge housings for the filtration stages. Because the XLP runs on clean, low-TDS sources, scaling risk is lower than with brackish water, but fouling from organics and particulates still requires proper pre-treatment to protect membrane life.