Vontron SW4040HR Industrial RO Membrane The Vontron SW4040HR RO Membrane is a high‑performance, industrial‑grade reverse osmosis element designed for demanding environments such as seawater or high‑salinity brackish water feed. It features a spiral‑wound configuration with a large active area of ~8.8 m² (~95 ft²) and a typical permeate output of 1,600 GPD (~6.1 m³/day) under test conditions.Because it achieves a salt rejection rate of 99.8%, it offers outstanding purification for high TDS inputs.The SW4040HR is built with robust materials and rated for high pressures (up to ~8.3 MPa / ≈1,200 psi) for demanding desalination tasks. Key Features High salt rejection (~99.8%) — suitable for seawater or high‑brine feed. Large active area (~8.8 m²) inside a standard 4″×40″ housing — supports higher throughput. Robust pressure rating — max allowed pressure up to ~1,200 psi (8.28 MPa), which allows industrial use. Wide pH and chemical tolerance — operational pH range 2‑11, cleaning range 1‑13. Seawater‑qualified design — excellent for systems treating saline or high‑TDS water. Technical Specifications Model: SW4040HR Active Membrane Area: ~95 ft² (≈8.8 m²) Typical Permeate Flow: ~1,600 GPD (~6.1 m³/day) under standard test condition (32,000 mg/L NaCl, recovery 8%) Stable Rejection Rate: 99.8% (under test) Maximum Operating Pressure: ~1,200 psi (~8.28 MPa) Maximum Feed Flow: ~3.6 m³/h (~16 gpm) Maximum Feed Temperature: ~45 °C Required Feed Conditions: SDI ≤5, free chlorine
