RO membrane housing is a pressure-rated cylindrical vessel designed to hold and seal reverse osmosis (RO) membrane elements. It serves as the structural component in RO systems that withstands high pressure and directs the flow of water through the membrane for filtration.

The housing ensures optimal membrane performance by maintaining pressure integrity, preventing leaks, and allowing safe operation under continuous flow conditions.

Specification	4″ Housing	8″ Housing
Lengths (for 1–6 membranes)	40″ to 240″	40″ to 480″
Working Pressure	300–600 PSI (Brackish)	600–1200 PSI (Seawater)
End Port Options	1″, 1.5″, 2″ NPT or flange	2″–3″ flange or Victaulic

Key Features:

Feature	Description
Material	Common materials include FRP (Fiber Reinforced Plastic), SS304/SS316 stainless steel, or PVC/UPVC for low-pressure systems.
Pressure Ratings	Available in a range of pressure ratings: 150 PSI to 1200+ PSI depending on application (e.g., brackish vs seawater).
Sizes	Typically designed for standard 4” or 8” diameter membranes (e.g., 4040, 8040).
End Connections	Side-port or end-port design for water inlet/outlet; may include threaded, flanged, or clamp-type connections.
Corrosion Resistance	FRP and SS housings are corrosion-resistant, ideal for salty or chemically aggressive environments.

Common Types of RO Membrane Housing:

Type	Description	Applications
FRP Housing (Fiberglass)	Lightweight, high-pressure tolerance, corrosion-resistant	Industrial RO systems
Stainless Steel Housing	Strong, hygienic, suitable for high-temperature or sanitary use	Food & beverage, pharma
UPVC Housing	Low-cost, used in low-pressure systems	Domestic RO systems

Installation & Maintenance Tips:

• Use lubricants compatible with membrane material during installation.

• Always support the housing properly to avoid stress or leaks.

• Check O-rings and end caps regularly for wear or cracking.

• For high-pressure systems, ensure proper torqueing and safety checks are in place.

Applications:

• Industrial and commercial RO systems (power plants, refineries, food processing)

• Seawater desalination plants

• Bottled water and beverage production

• Municipal water treatment

• Domestic RO systems (with smaller plastic housings)