Resin traps are protective inline devices installed downstream of ion-exchange units or media-based filters.
They serve as last-line safety barriers designed to:
Global water-treatment OEMs consider resin traps mandatory to avoid catastrophic failures due to resin carryover.
| Application Segment | Applications |
|---|---|
| A. Water & Wastewater Treatment |
• Softener units • Demineralizers (MB/MGB) • Mixed-bed polishers • Condensate polishers • Activated carbon filters • DM / RO / UF / EDI pretreatment systems |
| B. Industrial & Process Industries |
• Power plants — condensate, DM water, boiler feed • Oil & Gas — produced water, injection water, refinery water • Mining & Mineral Processing — media retention under high pressure/abrasion • Food & Beverage — sugar melter filters, beverage media filters • Pharmaceutical & Biotech — ultrapure water • Chemical plants — catalyst bed protection, process water • Pulp & Paper — resin, fibre, and media capture |
| Aspect | Highlights |
|---|---|
| Function | Captures resin/media & protects pumps/membranes |
| Material Options | SS304, SS316L, 904L, Duplex 2205/2507, Alloy 20, Hastelloy, Monel |
| Design Type | Cylindrical / basket-type V-wire wedge screen |
| Slot Sizes | 20 μm – 3000 μm |
| End Connections | ANSI / DIN flanges, BSP/NPT threads, custom |
| Benefits | High open area, low ΔP, non-clogging, corrosion-resistant |
| Applications | Water treatment, industrial filtration, mining, chemical, F&B |
| Apollo’s Role | Custom engineering, precision slotting, durable fabrication |
| Section | Details |
|---|---|
| Materials of Construction |
• SS304 / SS304L • SS316 / SS316L (industry standard) • 321, 904L • Duplex 2205 / Super Duplex 2507 • Alloy 20, Monel, Hastelloy — for • high-chloride or chemical duty |
| Slot Sizes |
• 20 μm to 3000 μm • Slots selected smaller than resin/media size to guarantee 100% retention • Tight slot tolerance: ±0.025–0.05 mm (global wedge-wire standard) |
| Dimensions |
• OD: 25 mm onwards (custom shapes/sizes available) • Length: As per system design — up to several meters • Configurations: cylindrical, conical, basket-type designs |
| End Connections |
• ANSI / DIN / JIS flanges (RF, FF, SO, WN) • BSP / NPT threaded ends • One end can be closed with dome, cap, or hemispherical head • Optional: vent/drain ports, pressure gauge nozzles, inspection windows |
| Section | Details |
|---|---|
| Performance Advantages |
• High open area (40–60%) → very low pressure drop • V-wire profile → self-cleaning action during operation • Non-clogging continuous slots → stable long-term flow • Sharp slot accuracy → guaranteed media retention |
| Operational Advantages |
• Backwash-friendly construction • Smooth internal finish → reduced fouling • Easy removal and maintenance • Withstands hot condensate, brine, chlorinated water, and chemicals • Excellent structural rigidity → no deformation under pressure surges |
| Reliability Advantages |
• Prevents expensive failures of membranes, pumps & valves • Extends life of downstream equipment • Eliminates downtime due to resin/media carryover • Highly corrosion-resistant metallurgy ensures long service life |
Manufacturing Strengths
Quality & Compliance
| Feature | Wedge Wire Resin Trap | Perforated Sheet | Wire Mesh |
|---|---|---|---|
| Clogging | Excellent (self-cleaning) | Moderate | Poor (clogs easily) |
| Strength | Very high | Medium | Low |
| Slot Accuracy | Excellent | Low | Poor / inconsistent |
| Open Area | 40–60% | 10–20% | 25–40% |
| Pressure Drop | Lowest | High | Very high |
| Cleaning | Easy | Hard | Very hard |
| Life Span | Longest | Medium | Short |
| Customisation | Very high | Medium | Low |
| Best For | Resin retention, high-flow, critical systems | Low-cost systems | Non-critical, low-pressure |
