High Pressure 316L Stainless Steel Membrane Pressure Vessel 300-1000 PSI for Seawater Desalination and Industrial RO Systems

Parameter Overview:

ABS end cap

Work pressure: 300PSI

Maximum working temperature: 90 ℃

Shell material: Stainless steel 304/316L

End cap material: ABS

O-ring material: EPDM, NSF grade

Surface treatment: mechanical polishing (320 mesh, Ra<0.6)

Model: Equipped with 4021/4040 standard membrane element, can hold 1-4 pieces

Advanced Hybrid Construction Technology

Optimal Material Synergy

• High-Impact ABS Shell: Premium-grade ABS cylinder offers superior resistance to chlorine, chloramines, oxidizing biocides, and UV degradation—eliminating metallic corrosion concerns common in all-stainless housings

• Precision Stainless Steel End Caps: 304/316L stainless steel end caps and tie-rods provide robust pressure containment and reliable connection integrity

• Engineered Interface Design: Patented mechanical locking system between ABS and stainless components ensures perfect alignment and eliminates stress concentrations

Superior Chemical Compatibility

• Chlorine Resistance: Withstands continuous chlorine exposure up to 10 ppm without degradation or corrosion

• Broad pH Tolerance: Compatible with feed waters across wide pH ranges (2-11) where metallic housings would corrode

• Oxidant Immunity: Resistant to ozone, hydrogen peroxide, and other common membrane cleaning chemicals

Key Performance Advantages

1. Unmatched Corrosion Resistance

• Zero Metallic Contamination: Prevents iron oxide and other metallic ion contamination in product water

• Eliminates Galvanic Corrosion: Non-conductive ABS shell prevents electrochemical corrosion mechanisms

• Long-Term Durability: Maintains structural integrity in aggressive water conditions where metals would degrade

2. Enhanced Hydraulic Performance

• Low Friction Interior: Smooth ABS surface reduces friction loss by 15-20% compared to metallic surfaces

• Optimized Flow Dynamics: Precision-molded internal geometry ensures laminar flow and uniform pressure distribution

• Thermal Insulation: ABS provides natural insulation, reducing heat loss in hot water applications

3. Operational & Maintenance Benefits

• Lightweight Construction: 40-60% lighter than all-stainless housings, reducing installation and handling costs

• Impact Resistance: Superior resistance to physical impact and handling damage

• UV Stabilization: Optional UV-resistant formulations for outdoor installations without painting or coating

Application-Specific Designs

Municipal Water Treatment

• Chlorinated Feed Water: Ideal for municipal supplies with residual chlorine

• Surface Water Treatment: Resists biological fouling and chemical attack

• Water Reuse Systems: Handles variable water quality with aggressive cleaning regimens

Industrial Process Water

• Cooling Tower Blowdown: Withstands high TDS and treatment chemicals

• Process Water Recycling: Compatible with industrial wastewater chemistries

• Boiler Feed Water: Pre-treatment for high-pressure steam systems

Specialized Applications

• Seawater Pretreatment: Resists chloride attack better than 316 stainless

• Food & Beverage: Non-metallic wetted surface prevents metallic taste transfer

• Pharmaceutical: Suitable for WFI pre-treatment with proper validation

Installation & Maintenance

Easy Installation

• Lightweight Handling: Reduced need for heavy lifting equipment

• Corrosion-Free Storage: Can be stored outdoors without protective coatings

• Simple Connection: Standard fittings interface with existing piping

Low Maintenance

• No Corrosion Monitoring: Eliminates need for regular corrosion inspection

• Easy Cleaning: Smooth surface prevents scaling and biofilm adhesion

• Visual Inspection: Transparent options allow condition monitoring without disassembly

Safety Features

• Overpressure Protection: Pressure relief options available

• Fail-Safe Design: Multiple safety factors in design

• Clear Markings: Pressure ratings and operating limits clearly marked

Why Choose Our ABS-Stainless Hybrid Housing?

1. Superior Chemical Resistance: Outperforms stainless steel in chlorinated and aggressive water applications

2. Optimal Value Proposition: Delivers premium performance at competitive cost

3. Weight Advantage: Significantly lighter than metal alternatives, reducing installation costs

4. Proven Reliability: Thousands of installations in challenging water conditions worldwide

5. Technical Innovation: Combines the best properties of both materials for optimal performance