Hydranautics SanRO CPA3-4 Membrane

Quality parts at an exceptional value
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
% Rej
GPD (m³/d) GPD (m³/d)
SanRO CPA3-4 High Rejection Composite 10,500 (39.7) 2,600 (9.8) 99.7 195 (1.35) 7.4
SanRO ESPA2-4 High Rejection Energy Saver 13,000 (49.2) 3,300 (12.5) 99.7 165 (1.14) 9.5



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°)
  • Operating pH Range: 3.0 - 10.0
  • Cleaning pH Range: 2.0 - 11.0



  • High volume pharmaceutical rinsing
  • Cosmetic formulations
  • Container rinsing
  • Cleaning of fermentation equipment, enzymes, polypeptides, blood products, antibiotics, clarification, desalting, concentration.
  • Buffer ex-change in the manufacture of proteins, and other biotechnology products.


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(1 review) Write a Review
  • 5
    Excellent service

    Posted by Joel R. on Jun 30th 2019

    Service was exceptional

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