4040 Dow RO Membrane- Model-TapTec LC HF

4040 Dow RO Membrane – TapTec LC HF

The 4040 Dow RO Membrane (TapTec LC HF) is an advanced reverse osmosis element designed for commercial and light industrial water treatment applications. Known for its high flow rate, excellent salt rejection, and long operational life, this membrane ensures consistent water quality even in demanding conditions. Works best upto TDS of 1000PPM 

Manufactured by Dow, a trusted global brand in water filtration, the TapTec LC HF 4040 membrane provides reliable performance with reduced energy consumption—making it an ideal choice for RO systems.

• Model: TapTec LC HF

• Size: 4040 (Outer Diameter 100 mm, Length 960 mm)

• Membrane Type: Thin Film Composite (TFC)

• Application: Commercial and industrial RO plants

• High Permeate Flow: Designed for higher water output with minimal pressure drop

• Superior Salt Rejection: Ensures purified water with TDS reduction efficiency up to 99%

• Long Life & Reliability: Built for extended performance with minimal fouling and scaling

• Easy to Install: Compatible with standard 4040 housings

1. What is the flow rate of the TapTec LC HF 4040 membrane?

Up to 2800 GPD (Gallons Per Day), depending on feed water quality.

2. What TDS level can this membrane handle?

Up to 1000 PPM working TDS, making it suitable for moderately hard commercial and light industrial water sources.

3. What is the salt rejection rate?

Up to 99%, ensuring consistent water quality across demanding commercial applications.

4. What operating pressure does this membrane require?

150–225 psi, within the standard range for commercial 4040-format RO systems.

5. What size housing does this membrane fit?

Standard 4040 format — 4.0 inch (100 mm) diameter, 40 inch (960 mm) length.

6. What applications is the TapTec LC HF 4040 best suited for?

Commercial and light industrial water treatment — its high flow rate and reduced energy consumption make it well suited to medium-demand RO systems where both output and running cost matter.

7. What's the maximum operating temperature and pH range?

Maximum temperature of 45°C, and a pH operating range of 2–11.

8. How does this compare to the BW30 PRO-4040?

Both are DOW 4040-format membranes, but the TapTec LC HF prioritizes flow rate and energy efficiency, while the BW30 PRO-4040 prioritizes fouling resistance and stabilized rejection. See the comparison table above.