4040 RO Housing – FRP 300 PSI Membrane Vessel

The 4040 RO housing is a sturdy pressure vessel made from fibreglass reinforced plastic (FRP), built to hold one standard 4040 reverse osmosis membrane. It works well in many RO systems where reliability and pressure tolerance matter, especially in industrial, commercial, and large residential water treatment setups. Moreover, this unit handles pressures up to 300 PSI, which makes it suitable for robust reverse osmosis applications.

Technical Specifications

Below are the key specs for this membrane housing:

• Membrane Size: Standard 4040 RO element
• Housing Material: FRP (fibreglass reinforced plastic)
• Pressure Rating: Up to 300 PSI operating pressure
• Color/Finish: White/Off‑white typical FRP ●
• Operating Temperature Range: ‑7 °C to 49 °C typical industrial range
• Connection Type: Standard threaded ends for easy pipe fitting

These specs make the 4040 RO housing a dependable choice if you need a reliable vessel that fits most standard RO membranes and can handle high pressure without corrosion.

How This Membrane Housing Works

In a reverse osmosis system, feed water enters the RO housing and the pressure pushes it through the internal membrane. First, water flows from the inlet side, then it is forced through the semi‑permeable membrane layer. Next, the clean (permeate) water exits through the center outlet, while rejected water exits at the waste port. Because this vessel uses water pressure to operate, it does not require electricity or special pumps, other than those already in the RO system setup.

Key Benefits

This RO membrane housing delivers:

• A reliable pressure vessel rated to 300 PSI for demanding setups.
• Corrosion‑resistant FRP construction that lasts longer than many metal housings.
• Easy integration into existing RO systems due to standard sizing.
• A cost‑effective solution for stand‑alone or multi‑stage RO systems.

Installation and Care

To install the 4040 RO housing, mount it securely, connect inlet and outlet fittings with suitable thread tape, and make sure all seals and O‑rings are tight. Change the RO membrane as recommended by the manufacturer to ensure consistent water quality and performance.