Domestic spiral ultrafiltration membranes are characterized by their molecular weight cut-off between 1000-200,000 Dalton usually. Ultrafiltration is a pressure-driven membrane process being capable of separating solution components on the basis of molecular size and shape. Under an applied pressure difference across an Domestic spiral ultrafiltration membrane, solvent and small solute species pass through the membrane and are collected as permeate while larger solute species are retained by the membrane and recovered as a concentrated retentate.

      We supply spiral Domestic spiral ultrafiltration membrane with a wide variety of membrane material and MWCO. They have a compact design and an optimum surface area to volume ratio. The feed channel height can be varied by the thickness of the feed spacer material (from 13 to 120 mil). This helps to adapt the viscosity or the solids content of the liquid. This design feature leads to excellent hydrodynamics in combination with low energy demand. To meet some specialty applications, acid/caustic resistant, fouling resistant or high temperature membrane products are available.

Domestic spiral ultrafiltration membrane Description
Membrane Chemistry: Proprietary semi-permeable polyethersulfone (PES)
Membrane MWCO: 1,000 Daltons
Construction: Sanitary spiral wound element with net outer wrap
Feed spacer: F=31 mil, G=46 mil, H=65 mil, I=80 mil
Outer wrap: N= Control Bypass without Tail
T= Control Bypass with Tail
FN/T Spacer (31mil) ft2(m2)	GN/T Spacer (46mil) ft2(m2)	HN/T Spacer (65mil) ft2(m2)	IN/T Spacer (80mil) ft2(m2)
228(21.2)	171(15.8)	133(12.3)	110(10.2)
Specialty feed spacer is available.
Domestic spiral ultrafiltration membrane Operation Specifications
Typical Operation Pressure: 30-120 psi (2.1-8.3 bar) Maximum Operation Pressure: 140 psi (9.7 bar) Operating Temperature Range: 41-122° F (5-50℃) Cleaning Temperature Range: 105-122° F (40-50℃) pH-Continuous Operation @25℃: 2.0-10.0 pH-CIP @25℃: 1.8-11.0 Contact us for specific applications.
Domestic spiral ultrafiltration membrane Design Parameters
FEED:	F spacer: 70-78 gpm G spacer: 83-93 gpm H spacer: 95-106 gpm I spacer: 110-123 gpm
Design Pressure Drop Per Element:	F spacer:12-15 psi (0.8-1.0bar) G spacer:15-20 psi (1.0-1.4bar) H & I spacer:15-25 psi (1.0-1.7bar)
Domestic spiral ultrafiltration membrane Dimensions