This 8-inch RO membrane housing is designed to accommodate a wide range of operating pressures from 300 PSI to 1200 PSI, meeting the requirements of different reverse osmosis system configurations. The FRP pressure ves sel is tested to withstand over 100,000 pressure cycles and more than six times its rated burst pressure, ensuring long-term mechanical stability and reliable performance under demanding conditions.
Wide Pressure Range
The 8 inch ro membrane housing supports operating pressures of 300 PSI to 1200 PSI, making it suitable for various RO applications including brackish water treatment, reclaimed water reuse, industrial process water, and seawater pre-treatment. It maintains structural integrity under repeated high-pressure operation.
Wide Membrane Compatibility
8 ro membrane housing compatible with major international membrane brands including DOW, HYDRANAUTICS, OSMONICS, KOCH, TORAY, CSM, VONTRON, and BDX. Strong compatibility allows seamless integration into both new and existing reverse osmosis systems.
Comprehensive Certifications
RO membrane housing 8040 has passed multiple international certifications, ensuring reliability and applicability across diverse and complex media environments.
Dimensions and Pressure Specifications
PRODUCTION
MODEL

| END PORT | |||||
|---|---|---|---|---|---|
| Model | Design/Operating Pressure | Max.. Operating Temperature | Min. Operating Temperature | Qualification Pressure | Element Length |
| 8040B300E | 300Psi / 21 Bar | 150°F / 66°C | 14°F / -10°C | 1800Psi / 126 Bar | 40" X (1-8) |
| 8040B450E | 450Psi / 31 Bar | 150°F / 66°C | 14°F / -10°C | 2700Psi / 186 Bar | 40" X (1-8) |
| 8040B600E | 600Psi / 41 Bar | 150°F / 66°C | 14°F / -10°C | 3600Psi / 246 Bar | 40" X (1-8) |
| 8040B1000E | 1000Psi / 69 Bar | 150°F / 66°C | 14°F / -10°C | 6000Psi / 414 Bar | 40" X (1-8) |
| 8040B1200E | 1200Psi / 83 Bar | 150°F / 66°C | 14°F / -10°C | 7200Psi / 498 Bar | 40" X (1-8) |

| SIDE PORT | |||||
|---|---|---|---|---|---|
| Model | Design/Operating Pressure | Max.. Operating Temperature | Min. Operating Temperature | Qualification Pressure | Element Length |
| 8040B300S | 300Psi / 21 Bar | 150°F / 66°C | 14°F / -10°C | 1800Psi / 126 Bar | 40" X (1-8) |
| 8040B450S | 450Psi / 31 Bar | 150°F / 66°C | 14°F / -10°C | 2700Psi / 186 Bar | 40" X (1-8) |
| 8040B600S | 600Psi / 41 Bar | 150°F / 66°C | 14°F / -10°C | 3600Psi / 246 Bar | 40" X (1-8) |
| 8040B1000S | 1000Psi / 69 Bar | 150°F / 66°C | 14°F / -10°C | 6000Psi / 414 Bar | 40" X (1-8) |
| 8040B1200S | 1200Psi / 83 Bar | 150°F / 66°C | 14°F / -10°C | 7200Psi / 498 Bar | 40" X (1-8) |
APPLICATION
The 8-inch RO membrane housing is designed to accommodate standard 8040 membrane elements, with capacity options for 1 to 8 elements. Multiple length specifications are available to meet different system treatment capacities. It is widely used in medium and large-scale projects such as industrial wastewater treatment, municipal water supply systems, and seawater desalination.
In our client’s seawater treatment project, it is used to replace pentair ro membrane housing and save 90% cost.
PACKING

FAQ
What is the typical production lead time for your membrane housings?
It depends on the quantity. For regular orders, the production lead time is around 15 days (excluding items that are in stock).
What is the pressure rating of your membrane housings?
Available pressure ratings include:
300 PSI
450 PSI
600 PSI
1000 PSI
1200 PSI
(Other custom pressure ratings can be provided based on application requirements.)
What materials are used?
Shell: Fiber-reinforced epoxy resin (FRP)
Inner liner: High-strength polyethylene (PE) or polyurethane
End caps & adapters: Stainless steel / Engineering plastics
These materials ensure corrosion resistance, light weight, and long service life.
Can the membrane housing be used in seawater desalination systems?
Yes. We offer high-pressure models (1000 PSI and above) suitable for seawater RO systems. The smooth inner surface also helps reduce pressure loss and fouling.
How do I install the membrane elements in the housing?
Typically:
Open the end cap
Insert thrust ring
Lubricate O-rings
Push membrane element in direction of concentrate outlet
We provide detailed installation manuals upon shipment.
Do you have any additional services?
- Yes, we provide a free goods inspection service. If your supplier is within 200 km of our company (Chengdu), even the transportation cost will be covered by us. If the distance is more than 200 km, only the transportation and hotel costs will be borne by you.
Can all your products accept OEM service?
Yes, for each item, there will be a minimum order quantity, and then we can produce an OEM order for you.
Can you source some other related products for us?
Yes, whether they are water- or wastewater-related products, we can source them for you. We have been working in the water and wastewater fields for more than 10 years.




