TW-34-4021
TW-34-4021 is a brackish-family spiral-wound thin-film composite RO element, vacuum integrity tested and shipped with its own serial number and datasheet.
- Model
- TW-34-4021
- Segment
- Commercial
- Family
- Brackish
- Element size
- 4" × 21"
- Salt rejection
- 99.5%
- Permeate flow
- 525 GPD
- Test pressure
- 100 psi
- Max temperature
- 45°C
- TDS class
- low
Cross-referenced models
Cross-references support initial selection. Confirm feed water, operating conditions and system compatibility with Hi-Tech before replacement. Published specifications may use different test conditions.
- DuPont (FilmTec) TW30-4021Comparable specifications
- DuPont (FilmTec) BW30-4021Application review required
- Koch (Separation Solutions) MW-T421Comparable specifications
- Vontron ULP21-4021Comparable specifications
- Vontron LP21-4021Application review required
- CSM (Toray Chemical Korea) RE4021Comparable specifications
- CSM (Toray Chemical Korea) RE4021-BE / TE / TLApplication review required
Frequently asked questions
What is the salt rejection of TW-34-4021?
TW-34-4021 is tested to 99.5% salt rejection at 100 psi test pressure.
What element size is TW-34-4021?
TW-34-4021 is a 4" × 21" spiral-wound RO element (industry size code 4021), rated for a maximum operating temperature of 45°C.
Which membranes is TW-34-4021 equivalent to?
TW-34-4021 is cross-referenced with DuPont (FilmTec) TW30-4021 (Comparable specifications), DuPont (FilmTec) BW30-4021 (Application review required), Koch (Separation Solutions) MW-T421 (Comparable specifications), Vontron ULP21-4021 (Comparable specifications), Vontron LP21-4021 (Application review required), CSM (Toray Chemical Korea) RE4021 (Comparable specifications) and others. Cross-references support initial selection. Confirm feed water, operating conditions and system compatibility with Hi-Tech before replacement. Published specifications may use different test conditions.