
RO Membrane Housing
If you are looking for a professional membrane housing in China, then Shanghai CM can be your first choice. CM has been an expert ro membranes housing supplier in China since 2009.

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+86 18221094035
chris@shchenmo.com
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No. 1188 Jiangyue Road, Minhang District, Shanghai
RO Membrane Housing Overview
Discover the essential components that ensure optimal performance and longevity of your reverse osmosis water filtration system
Purpose & Importance
RO membrane housings serve as the protective shell for reverse osmosis membranes, creating a sealed environment where water filtration occurs under pressure. These critical components ensure that contaminated water is properly channeled through the membrane while maintaining system integrity.
In reverse osmosis systems, the housing acts as the pressure vessel that contains and supports the semi-permeable membrane, directing water flow and maintaining the necessary pressure differential for effective contaminant removal. Without proper housing, even the highest quality membranes cannot perform optimally.
Key Features
Advanced engineering for superior performance and reliability
Durable Construction
Built with high-grade materials to withstand continuous pressure and ensure long-lasting performance in demanding applications.
Leak-Proof Design
Precision-engineered sealing systems prevent water leakage and maintain optimal pressure throughout the filtration process.
Easy Installation
User-friendly design with clear markings and standard connections for quick and hassle-free installation.
Wide Compatibility
Compatible with various membrane sizes and types, offering flexibility for different system configurations and requirements.
Corrosion Resistance
Advanced materials and coatings provide excellent resistance to corrosion and chemical degradation over time.
Pressure Optimization
Engineered to maintain consistent pressure distribution for maximum filtration efficiency and membrane performance.
Benefits for You
Real advantages that make a difference in your water filtration experience
Extended Membrane Life
Proper housing protection significantly extends membrane lifespan by preventing damage from pressure fluctuations and contamination, reducing replacement costs and maintenance frequency.
Reliable System Performance
Consistent water quality and flow rates ensure your RO system operates at peak efficiency, delivering clean water when you need it most.
Reduced Maintenance
Quality housing design minimizes system downtime and maintenance requirements, saving you time and money while ensuring continuous operation.
Versatility for Various Applications
Suitable for residential, commercial, and industrial applications, providing flexibility to meet diverse water treatment needs and system requirements.
Detailed Specifications
How to Select the Right Housing
Choosing the correct RO membrane housing is crucial for optimal system performance. Consider your flow rate requirements, operating pressure, chemical compatibility, and membrane configuration. Our comprehensive specification tables below will help you identify the perfect housing solution for your reverse osmosis application.
Product Specifications
FRP (Fiberglass Reinforced Plastic) Housing
Model Number | Compatible Membrane Size | Number of Elements | Max Operating Pressure | Operating Temperature | Port Type |
---|---|---|---|---|---|
FRP-2540-1 | 2.5" x 40" | 1 | 300 psi / 21 bar | 4-45°C / 39-113°F | End Port |
FRP-4040-1 | 4" x 40" | 1 | 300 psi / 21 bar | 4-45°C / 39-113°F | Side Port |
FRP-8040-7 | 8" x 40" | 7 | 300 psi / 21 bar | 4-45°C / 39-113°F | Side Port |
Stainless Steel Housing (SS304/SS316L)
Model Number | Material | Compatible Membrane Size | Number of Elements | Max Operating Pressure | Port Size & Connection |
---|---|---|---|---|---|
SS304-2521-1 | SS304 | 2.5" x 21" | 1 | 600 psi / 41 bar | 1/2" NPT |
SS316L-4040-3 | SS316L | 4" x 40" | 3 | 600 psi / 41 bar | 2" Victaulic |
SS316L-8040-6 | SS316L | 8" x 40" | 6 | 600 psi / 41 bar | 4" BSP |
Complete Technical Specifications
Specification | FRP Series | SS304 Series | SS316L Series |
---|---|---|---|
Operating Temperature Range | 4-45°C (39-113°F) | 4-80°C (39-176°F) | 4-80°C (39-176°F) |
End Cap Material | FRP with O-ring seal | SS304 with EPDM seal | SS316L with Viton seal |
Closure System | Clamp ring closure | Swing bolt closure | Swing bolt closure |
Certifications | NSF, CE | ASME, NSF, CE | ASME, NSF, CE, 3A |
Typical Dimensions (8" x 40") | L: 1016mm, D: 219mm | L: 1016mm, D: 219mm | L: 1016mm, D: 219mm |
Technical Drawings & Dimension Diagrams

FRP Housing Drawings
Complete dimensional drawings for FRP series housings

SS304/316L Drawings
Detailed technical drawings for stainless steel housings

Installation Guide
Step-by-step installation and maintenance guide
Need Complete Specifications?
Download our comprehensive specification sheet with all technical details, certifications, and compatibility charts.
Applications
RO membrane housings serve critical roles across diverse industries, providing reliable water treatment solutions for residential, commercial, and industrial applications worldwide.
Overview of Common Industries and Uses
Municipal water treatment facilities for large-scale purification
Food and beverage industry for process water quality
Pharmaceutical manufacturing requiring ultrapure water
Electronics and semiconductor production facilities
Power generation plants for boiler feedwater treatment
Hospitality and commercial buildings for water quality
Application Examples

Drinking Water Purification
Essential for removing contaminants, chlorine, and dissolved solids from tap water. Residential systems typically use 4-6 inch housings, while municipal facilities require large-diameter industrial housings for high-flow applications.
- Home under-sink and whole-house systems
- Community water treatment plants
- Bottled water production facilities

Industrial Process Water
Critical for manufacturing processes requiring consistent water quality. Industrial-grade stainless steel housings handle high pressures and corrosive environments while maintaining operational efficiency.
- Chemical processing and refineries
- Textile and paper manufacturing
- Metal finishing and plating operations

Brackish Water Desalination
Converts brackish groundwater into potable water for communities with limited freshwater resources. Operates at moderate pressures with specialized membrane configurations for optimal salt rejection.
- Rural and remote community water supply
- Agricultural irrigation systems
- Golf course and landscape irrigation

Seawater Desalination
Requires high-pressure stainless steel or specialized FRP housings to withstand extreme operating conditions. Essential for coastal regions and islands with limited freshwater access.
- Large-scale municipal desalination plants
- Marine and offshore applications
- Emergency water supply systems

Ultrapure Water Systems
Produces water with extremely low levels of ionic, organic, and particulate contamination. Multi-stage systems with precision-engineered housings ensure consistent ultrapure water quality.
- Semiconductor and microelectronics manufacturing
- Pharmaceutical and biotechnology production
- Laboratory and research applications

Wastewater Treatment & Reuse
Transforms treated wastewater into high-quality reclaimed water for non-potable and potable reuse applications. Robust housing designs handle challenging feed water conditions.
- Municipal wastewater reclamation facilities
- Industrial water recycling systems
- Indirect potable reuse programs
Ready to Find Your Solution?
Our technical team can help you select the optimal RO membrane housing configuration for your specific application requirements.
Compatible Products & Accessories
Enhance your RO membrane housing system with our comprehensive range of compatible products and high-quality accessories designed for optimal performance.
RO Membranes
Complete range of reverse osmosis membranes specifically designed to work with our housing systems.
Essential Components
High-quality replacement parts and accessories to maintain peak system performance.
O-Rings & Seals
Premium quality sealing solutions for leak-proof connections
End Cap Assemblies
Durable end caps designed for easy maintenance and replacement
Mounting Hardware
Clamps, saddles, and brackets for secure installation
Complete RO System Solutions
Looking for a complete reverse osmosis system? Explore our comprehensive range of pre-engineered RO systems that include housings, membranes, and all necessary components.
Quality Assurance & Certifications
Our RO membrane housings are manufactured to the highest industry standards, ensuring reliable performance and long-lasting durability through rigorous quality control processes.

Manufacturing Standards
All RO membrane housings are manufactured according to ASME Section VIII Division 1 standards for pressure vessels, ensuring structural integrity and safety under operating conditions up to 1000 PSI.
Material Quality Control
Every batch of stainless steel and composite materials undergoes comprehensive testing including chemical composition analysis, mechanical property verification, and corrosion resistance evaluation.
Industry Certifications
Our commitment to quality is validated through multiple industry certifications and compliance standards.
ISO 9001:2015
Quality Management System certification ensuring consistent manufacturing processes
NSF/ANSI 61
Drinking water system components certification for health and safety compliance
ASME U-Stamp
Pressure vessel certification for safe operation under high-pressure conditions
CE Marking
European Conformity marking for compliance with EU health and safety standards
Material Testing
Comprehensive material testing including tensile strength, impact resistance, and chemical compatibility verification.
- Tensile strength testing
- Corrosion resistance analysis
- Chemical compatibility verification
Pressure Testing
Every housing undergoes hydrostatic pressure testing at 1.5 times the maximum working pressure to ensure safety and reliability.
- Hydrostatic pressure testing
- Leak detection verification
- Burst pressure validation
Quality Documentation
Complete traceability documentation including material certificates, test reports, and manufacturing records for every unit.
- Material traceability certificates
- Manufacturing process records
- Quality inspection reports
Ordering Information & Support
Get expert guidance on selecting the right RO membrane housing for your application. Our team is ready to help you with specifications, quotes, and technical support.
How to Order
Specify Material Requirements
Choose from stainless steel 304/316, carbon steel, or FRP based on your water chemistry and operating conditions.
Define Size & Configuration
Specify membrane size (4", 8"), number of elements, and housing length requirements.
Pressure Rating & Connections
Indicate operating pressure (150-600 PSI) and preferred connection types (NPT, flanged, tri-clamp).
Additional Options
Include any special requirements like pressure gauges, sample ports, or custom mounting brackets.
Expert Support
Our technical team provides comprehensive support from selection to installation and maintenance.
Phone Support
+1 (555) 123-4567
Email Support
support@rohousing.com
Response Time
Within 24 hours
Request Quote
Get detailed pricing for your specific requirements
Technical Specs
Download detailed specifications and drawings
Contact Page
Find our locations and contact information
Frequently Asked Questions
Common questions about RO membrane housing selection, installation, and maintenance
Material selection depends on your water chemistry and operating conditions. Stainless steel 316 is recommended for high chloride environments, while 304 works well for most municipal water applications. FRP housings are cost-effective for low-pressure applications.
Choose a pressure rating at least 1.5 times your operating pressure. For typical RO systems operating at 200-250 PSI, a 300-400 PSI rated housing provides adequate safety margin. High-pressure systems may require 600 PSI rated housings.
Inspect O-rings and seals every 6 months or during membrane replacement. Replace O-rings annually or if signs of wear are visible. Clean housing interior during each membrane change to prevent biofilm buildup.
Yes, most standard housings are compatible with various membrane brands. Ensure the housing length matches your membrane requirements and that pressure ratings are adequate for your system operating conditions.
Ensure proper support for housing weight when loaded with membranes. Allow adequate clearance for membrane removal. Install pressure gauges at inlet and outlet for monitoring. Use proper torque specifications for end caps to prevent leaks.