8 Inch Housing Membrane RO | Stainless Steel Pressure Vessel | 304 / 316L | 300–1000 PSI | End & Side Port

  • Material: SUS304, SUS316L
  • End cap material: ABS, SUS304, SUS316L
  • Maximum working pressure: 300 Psi, 400 Psi, 600 Psi, 1000 Psi
  • Surface finish: polished or brushed
  • Inlet/outlet connection types: side-in end-out or end-in end-out
  • The inner surface of the stainless steel membrane housing is smooth, and the outer surface is sand-polished above 400#, with a bright mirror finish. It is made of welded pipe with nitrogen protection during welding.
  • The pipe ends are evenly flanged with precise dimensions.
  • The actual wall thickness is above 3.0 mm.
  • The test pressure is 2.3 MPa.
  • The inlet and outlet ports on the membrane housing end caps are available in 1/2″, 3/4″, and 1/2″×1/2″ sizes. The material is nylon, capable of withstanding temperatures from -47°C to +150°C. It is non-toxic, anti-aging, non-deformable, and uses a dual sealing structure. The O-rings have a hardness of 68° and are made of silicone rubber and nitrile rubber, ensuring long-lasting elasticity.

Our 8-inch stainless steel housing membrane RO is designed for high-performance reverse osmosis systems in industrial and high-purity water applications. Constructed from premium 304/316L stainless steel, this housing provides excellent mechanical strength, corrosion resistance, and long-term reliability. Its precision-engineered design ensures stable operation under high pressure while minimizing maintenance requirements. For ro membrane housing size, please check the below MODEL information.
Why Choose Our RO Membrane Housing
This 8-inch standard ro membrane housing combines strength, reliability, and precision engineering to ensure optimal performance in demanding RO systems. Ideal for engineers, system integrators, and water treatment professionals, it delivers a dependable solution for industrial and high-purity water applications.

If you need RO membrane housing price, just send us inquiry.

DETAILS

MODEL

8" Side-in/End-out 400Psi
ModelL
(mm)
L1
(mm)
D
(mm)
A
(in)
B
(out)
3-8040655511Ø621/2"1/4"
3-80801136994Ø621/2"3/8"
3-80120668515Ø1023/4"1/2"
3-801601148998Ø1023/4"1/2"
3-8020021642014Ø1023/4"1/2"
3-8024031803030Ø1023/4"1/2"
3-4016041964046Ø1023/4"1/2"
8" End-in/End-out 300Psi
ModelL
(mm)
D
(mm)
A
(in)
B
(out)
6-80401232Ø2031"-1/2"1"
6-80802248Ø2031"-1/2"1"
6-801203264Ø2031"-1/2"1"
6-801604284Ø2031"-1/2"1"
6-802005300Ø2031"-1/2"1"
6-802406316Ø2031"-1/2"1"
8" Side-in/End-out 300Psi
ModelL
(mm)
L1
(mm)
D
(mm)
A
(in)
B
(out)
7-804012881101Ø2031 1/2"1"
7-808023042117Ø2031 1/2"1"
7-8012033203133Ø2031 1/2"1"
7-8016043364149Ø2031 1/2"1"
7-8020053525165Ø2031 1/2"1"
7-8024063686181Ø2031 1/2"1"
8" Side-in/End-out 1000Psi -V type
ModelL
(mm)
L1
(mm)
D
(mm)
A
(in)
B
(out)
8-8040-V13591109Ø2031 1/2"3"
8-8080-V23752135Ø2031 1/2"3"
8-80120-V33913151Ø2031 1/2"3"
8-80160-V44074167Ø2031 1/2"3"
8-80200-V54235183Ø2031 1/2"3"
8-80240-V64396199Ø2031 1/2"3"
8 inch pressure vessel-8T
8" Side-in/End-out 1000Psi -T type
ModelL
(mm)
L1
(mm)
D
(mm)
A
(in)
B
(out)
8-8040-T13591109Ø2031 1/2" -3"1" -1/2"
8-8080-T23752135Ø2031 1/2" -3"1" -1/2"
8-80120-T33913151Ø2031 1/2" -3"1" -1/2"
8-80160-T44074167Ø2031 1/2" -3"1" -1/2"
8-80200-T54235183Ø2031 1/2" -3"1" -1/2"
8-80240-T64396199Ø2031 1/2" -3"1" -1/2"
8 inch pressure vessel-9V
8" Side-in/End-out 600Psi -V type
ModelL
(mm)
L1
(mm)
D
(mm)
A
(in)
B
(out)
9-8040-V13011071Ø2031 1/2" -2"1"
9-8080-V23172087Ø2031 1/2" -2"1"
9-80120-V33333103Ø2031 1/2" -2"1"
9-80160-V43494119Ø2031 1/2" -2"1"
9-80200-V53655135Ø2031 1/2" -2"1"
9-80240-V63816151Ø2031 1/2" -2"1"
8 inch pressure vessel-9T
8" Side-in/End-out 600Psi -T type
ModelL
(mm)
L1
(mm)
D
(mm)
A
(in)
B
(out)
9-8040-T13011071Ø2031 1/2" -2"1.5"
9-8080-T23172087Ø2031 1/2" -2"1.5"
9-80120-T33333103Ø2031 1/2" -2"1.5"
9-80160-T43494119Ø2031 1/2" -2"1.5"
9-80200-T53655135Ø2031 1/2" -2"1.5"
9-80240-T63816151Ø2031 1/2" -2"1.5"

APPLICATION

8-Inch Flanged Stainless Steel RO Membrane Housing
  • Advantages: Flanged connection provides excellent sealing, suitable for high-pressure operation. 
  • Material: 304/316L stainless steel with EPDM sealing ring. 
  • Applications: Industrial water treatment, seawater desalination.
8-Inch Clamp-Type RO Membrane Housing
  • Advantages: Quick assembly and disassembly, easy maintenance, saves time.
  • Material: 304/316L stainless steel with FKM (fluororubber) sealing.
  • Applications: Pharmaceutical and chemical industries.
8-Inch Union-Type RO Membrane Housing
  • Advantages: Compact structure, ideal for space-limited applications.
  • Material: 316L stainless steel with high-pressure resistant sealing.
  • Applications: Electronics ultrapure water systems, high-end manufacturing.
8-Inch Internal-Type RO Membrane Housing
  • Advantages: Integrated design reduces external leakage risk, aesthetically pleasing and durable.
  • Material: 316L stainless steel with food-grade sealing.
  • Applications: Food processing, drinking water systems.

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).

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.)

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.

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.

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.

  1. 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.

Yes, for each item, there will be a minimum order quantity, and then we can produce an OEM order for you.

 

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.

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