8-inch end-connected fiberglass reinforced plastic (FRP) RO membrane housing is made of high-strength glass fiber reinforced plastic (FRP), featuring top-level resistance to high pressure and corrosion. Its end connection (End Port) integrated design precisely integrates all pipeline interfaces at both ends of the membrane housing, achieving unparalleled compact layout and pipe regularity when multiple units are connected in series. It is the cornerstone for constructing large-scale standardized reverse osmosis systems. The housing can stably withstand industrial-grade working pressures ranging from 300 PSI to 1200 PSI, and is compatible with 1 to 8 standard 8-inch reverse osmosis membrane elements. It is the core pressure vessel solution for large-scale seawater desalination, large-scale industrial wastewater reuse, electronic ultra-pure water production, and other high-flow, high-standard desalination systems.
The inlet/outlet for raw water, concentrated water and produced water are all located at the end; the standard for the produced water outlet is 1″ NPT/BSP.
Main material
Glass Fiber Reinforced Plastic (FRP)
End plate / Fastener
Stainless steel / alloy
Application fields
Large-scale industrial RO systems, seawater desalination, brackish water desalination, high-purity water production.
【Product Overview】
This product is an 8-inch end-port type glass fiber reinforced plastic (FRP) reverse osmosis (RO) membrane housing. It is the core high-pressure pressure vessel of large-scale industrial reverse osmosis and seawater desalination systems. It adopts an end-connected design, integrating all pipeline interfaces at both ends of the membrane housing, forming an extremely compact and orderly structure. It is particularly suitable for standardized module designs with multiple membrane housings connected in series. The housing is made of high-strength FRP缠绕， capable of supporting 1 to 8 standard 8-inch RO or nanofiltration membrane elements， and providing a complete industrial pressure range from 300 PSI to 2000 PSI. It has been optimized to cope with high salt content feed water and high-pressure operating environments.
【Product Features and Advantages】
Compact structure, saves space: The end-connector design concentrates all external connections at both ends, providing the possibility for the close side-by-side or series arrangement of multiple membrane shells. This significantly optimizes the system’s floor space, making the equipment appearance more orderly.
Extremely wide pressure range, powerful performance: The pressure range covers from the conventional 300 PSI to the extremely high 2000 PSI. The high-pressure model is specifically designed for seawater desalination and special separation applications, demonstrating outstanding pressure resistance reliability and system adaptability.
Industrial-grade durability: Made of FRP material and equipped with stainless steel/alloy components, it features excellent corrosion resistance, high-pressure resistance and fatigue resistance. It has passed rigorous certifications (such as ASME, CE) and tens of thousands of fatigue tests, ensuring long-term safety and stability during continuous industrial operation.
Suitable for standardized modules: The regular end interfaces are highly suitable for constructing standardized and modular reverse osmosis membrane stacks, simplifying the system design and installation process, and reducing the complexity of integration.
One-stop selection: Offers a complete product range from low pressure to ultra-high pressure, and from single tubes to multiple tubes membranes, which can precisely meet the needs of water treatment projects of different scales and pressures.
【Typical Application Scenarios】
The core membrane stacks of large-scale seawater desalination plants and brackish water desalination projects.
Large-scale industrial wastewater zero discharge and reuse systems in industries such as power, petrochemicals, and steel.
The final reverse osmosis unit of the ultra-pure water preparation system required by the electronics, photovoltaic and pharmaceutical industries.
Municipal large-scale water supply deep treatment and reclaimed water reuse project.
Any field of industrial fluid separation that requires high desalination rate, high system integration and compact layout.
