Hydranautics SanRO HS2-4 Membrane

Product Description

SanRO membranes from Hydranautics provide reliable, sanitary membrane performance in USP Classified water systems. SanRO’s unique design eliminates “dead flow” areas - potential breeding grounds for bacterial growth - and ensures maximum ion removal with minimal fouling. SanRO-HS, and the new SanRO-HS2, provide all the benefits of SanRO in a heatsanitizable membrane, designed for sanitizing at 85˚ C. Users enjoy enhanced convenience by eliminating chemical handling and disposal concerns.


Membrane Type Description Element Performance System Performance
Permeate Flow and Rejection Applied Pressure psig (Mpa) Permeate TDS, PPM
8040 4040 % Rej
GPD (m³/d) GPD (m³/d)
SanRO HS-4 High Rejection Composite 8,800 (33.3) 2,200 (8.4) 99.7) 225 (1.55) 6.0
SanRO HS2-4 High Flux, High Rejection Composite 11,200 (42.4) 2,800 (10.6) 99.6 185 (1.28) 8.6



Standard Operating Limits:
  • Configuration: Sanitary Spiral Wound
  • Membrane Polymer: Composite Polyamide
  • Maximum Applied Pressure, psi (MPa): 600 (4.14)
  • Maximum Pressure Drop per Vessel, psi (MPa): 60 (0.41)
  • Maximum Pressure Drop per Membrane, psi (MPa): 10 (0.07)
  • Maximum Chlorine Concentration, PPM: <0.1
  • Maximum Operating Temperature, °F (°C): 113° (45°)
  • Sanitizing Temperature/Pressure Max., °C (psig): 85° (25)
  • Operating pH Range: 3.0 - 10.0
  • Cleaning pH Range: 2.0 - 11.0



  • Reduction of bacterial endotoxins and microbes
  • Opthalmic and inhalation product production
  • Reduction of TDS, TOC and colloids from high purity water
  • Removal of algae, fungi, mold, yeast and bacteria as measured in “colony forming units “(CFU)
  • Removal of bacteria from cell walls of polysaccharide compounds
  • Reduction of microbial growth by minimizing nutrients
  • Electronics-grade ultrapure water
  • Water for cosmetic production
  • Nutriceutical production
  • Food and beverage production
  • Container rinsing
  • Production of ultrapure or PW (Purified Water)
  • Wine de-alcoholization
  • Replacement of distillation systems, providing lower energy usage and costs


[custom-documents] [/custom-documents]
(1 review) Write a Review
  • 5
    our favorite supplier

    Posted by Mauricio A. on May 20th 2019

    Will buy these membranes again!

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