Our 2.5 inch RO pressure vessels are compact stainless steel housings designed for small-scale water treatment or space-limited installations.These 2.5-inch vessels are ideal for household water purifiers or small industrial systems, offering high strength, excellent pressure and temperature resistance, and superior mechanical durability.
Drawbacks: Stainless steel ro pressure vessels are relatively costly and heavy, and stainless steel is sensitive to chloride-induced corrosion (pitting and stress corrosion cracking), especially in seawater or high-chloride environments. In such cases, SUS316L or higher grades are recommended.
Recommended Applications: High-pressure systems, high-temperature operations, applications with strict hygiene requirements (such as food and pharmaceuticals), or situations with very low inlet chlorine levels and sufficient budget. Stainless steel vessels should be used cautiously for seawater desalination.
Engineering Plastics Alternative: Mainly used for small household units or specific low-pressure scenarios. SS RO pressure vessels are lower cost but have limited strength and pressure resistance.
As wholesale ro pressure vessel, we supply OEM service too, including logo on the vessel body as well as outer packing. If you are looking China ro pressure vessel, send us inquiry.
MODEL
| 2.5" End-in/End-out 250Psi | |||||
|---|---|---|---|---|---|
| Model | L (mm) | L1 (mm) | D (mm) | A (in) | B (out) |
| 1-2514 | 417 | 363 | Ø62 | 3/8" | 1/4" |
| 1-2521 | 594 | 540 | Ø62 | 3/8" | 1/4" |
| 1-2540 | 1082 | 1024 | Ø62 | 3/8" | 3/8" |
| 2.5" Side-in/End-out 250Psi | |||||
|---|---|---|---|---|---|
| Model | L (mm) | L1 (mm) | D (mm) | A (in) | B (out) |
| 2-2521 | 655 | 511 | Ø62 | 1/2" | 1/4" |
| 2-2540 | 1136 | 994 | Ø62 | 1/2" | 3/8" |
| 2.5" Side-in/End-out 400Psi | |||||
|---|---|---|---|---|---|
| Model | L (mm) | L1 (mm) | D (mm) | A (in) | B (out) |
| 3-2521 | 655 | 511 | Ø62 | 1/2" | 1/4" |
| 3-2540 | 1136 | 994 | Ø62 | 1/2" | 3/8" |
| 2.5" Side-in/End-out 1000Psi | |||||
|---|---|---|---|---|---|
| Model | L (mm) | L1 (mm) | D (mm) | A (in) | B (out) |
| 5-2540S | 1162 | 1034 | Ø62 | 1/2" -3/4" | 1/2" |
APPLICATION
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.
