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  • RE8040-BLN440 Equivalent
RE8040-BLN440 Equivalent

RE8040-BLN440 Equivalent

Equivalent, equivalence, replacement, alternative, analog, retrofit, analogue, derivative, substitution: CSM RE8040-BLN440, RE8040BLN440

General Information

TFULP-8040-440C is manufactured as an equivalent, replacement, alternative, retrofit, analogue to CSM RE8040-BLN440 (RE8040BLN440) RO membrane element.
CSM RE8040-BLN440 equivalent reverse osmosis membrane elements TFULP-8040-440C are developed for energy saving for water treatment in various industries and applications, ideal for reverse osmosis plant managers and operators dealing with low to medium TDS level water with essential pre-treatment.
TFULP-8040-440C reverse osmosis membrane element provides consistency, high-quality filtrate, reliable performance, and long service life at a low feed pressure, which saves energy and reduces operation costs.

Features & Advantages

  • High permeability
  • Anti-fouling structure design
  • Good consistency and reliability
  • Direct and economical element replacement


  • Municipal drinking water
  • Industrial process water
  • Dual water supply system
  • Pure water preparation plant


  • Configuration: Spiral wound element
  • Membrane Polymer: Polyamide thin-film composite


Element Model

Membrane Active Area

ft2 (m2)

Feed Spacer

Mil (mm)

Permeate Flow Rate*

GPD (m3/d)

Stabilized Salt Rejection**

Minimum Salt Rejection


440 (41)

28 (0.712)

12,500 (47.3)



Standard test conditions:
The above performance is initial (data record after 30 minutes of operation), based on the following conditions:
1,500 ppm NaCl solution
150 psi (10.3 bar) operating pressure
25°C (77°F) operating temperature
15% permeate recovery
7.5-8 pH range
*Permeate flow for individual elements may vary but will be no more than ±15%.
**Stabilized salt rejection is generally achieved within 24-48 hours of continuous use; depending on feed water characteristics and operating conditions.
Element Dimensions
CSM RE8040-BLN440 RO Membrane Equivalent Element Dimensions


Length L
inch (mm)

Diameter D
inch (mm)

Permeate tube inner diameter d
inch (mm)


40 (1,016)

7.9 (201)

1.125 (28.6)

Operating and Cleaning Limits

Maximum Operating Pressure

600 psi (41 bar)

Maximum Operating Temperature

45°C (113°F)

Maximum Chlorine Concentration

0.1 ppm

pH Range, Continuous


pH Range, Cleaning


Maximum Feed SDI (15 mins)


Maximum Element Pressure Drop

15 psi (1 bar)

Maximum Feed Flow

17 m3/h

Minimum Ratio of Concentrate to Permeate Flow for Each Element


The limits shown above are for general applications. For specific projects, operating at more conservative values may ensure the best performance and longest life of the membrane element.

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