ATLAS COPCO EWD50B Zero Loss Electronic Drain | Replacement, Equivalent & Selection Guide
The ATLAS COPCO EWD50B is a zero-loss electronic condensate drain designed for compressed air systems. It eliminates timed-interval purging losses by opening only when condensate is present, delivering measurable energy savings and reliable moisture removal. This page provides full technical specifications, compatible replacement models, application guidance, and sourcing information to help engineers and procurement teams make the right selection.
Technical Specifications
- Model: EWD50B
- Brand: ATLAS COPCO
- Type: Zero Loss Electronic Condensate Drain
- Max. Operating Pressure: 16 bar (232 psi)
- Condensate Capacity: Up to 50 L/h
- Connection Size: G 3/8″ (BSP)
- Power Supply: 100–240 V AC, 50/60 Hz
- Protection Class: IP54
- Operating Temperature: 1°C – 60°C (34°F – 140°F)
- Weight: 268 g
- Material: Aluminium body, stainless steel internals
- Drain Principle: Capacitive level sensor — opens on demand, zero air loss
- Alarm Output: Fault indicator LED + potential-free contact
- Part Number / SKU: EWD50B
Compatible Replacement & Equivalent Models
The following models are commonly evaluated as replacements or equivalents for the EWD50B. Always verify pressure rating, connection size, and condensate capacity before substituting.
- ATLAS COPCO EWD25 — Lower capacity (25 L/h); suitable for smaller compressors up to 15 kW
- ATLAS COPCO EWD100 — Higher capacity (100 L/h); for larger systems or high-humidity environments
- JORC MIST-ELIMINATOR / LEVEL-TROL — Third-party zero-loss drain; compatible with 16 bar systems, G 3/8″ port
- BEKO BEKOMAT 13 — Industry-standard equivalent; capacitive sensor, 16 bar, G 3/8″, widely stocked
- BEKO BEKOMAT 31 — Higher-flow equivalent for systems with elevated condensate volumes
- PNEUMATECH AD-50 — OEM-equivalent drain for Pneumatech-branded Atlas Copco compressors
- SMC ADM200 — Electronic drain with comparable pressure and flow ratings; requires adapter for G 3/8″
Note: Cross-reference by condensate capacity (L/h), max pressure (bar), port size, and voltage before ordering a replacement.
Why Choose the Original EWD50B
- Zero air loss: Sensor-triggered opening eliminates the continuous purge losses of timer-based drains, reducing energy costs by up to 30%.
- OEM integration: Designed and validated for Atlas Copco GA, GX, and SF series compressors — plug-and-play fit with no adapter required.
- Fault diagnostics: Built-in alarm output and LED indicator enable predictive maintenance integration.
- Proven reliability: IP54-rated housing withstands industrial environments; stainless internals resist corrosion from acidic condensate.
- Warranty compliance: Using OEM parts preserves Atlas Copco service agreements and warranty coverage.
Typical Applications
- Compressed air dryers (refrigerant and desiccant types)
- Air receivers and buffer tanks
- Filters and separators in compressed air treatment lines
- Atlas Copco GA 7–37 kW rotary screw compressors
- Food & beverage, pharmaceutical, and electronics manufacturing (where air quality is critical)
- Automotive paint shops and precision machining facilities
System Compatibility
- Compressor series: Atlas Copco GA, GX, SF, ZR/ZT (verify model-specific drain port)
- Dryer compatibility: FD, FX, and MD series refrigerant dryers
- Max system pressure: 16 bar — do not install on systems exceeding this rating
- Voltage: Universal 100–240 V AC; confirm local supply before ordering
- Condensate type: Compatible with oil-water condensate; pair with an oil-water separator (e.g., Atlas Copco OSC) for compliant disposal
Selection Guide
Use the following criteria to confirm the EWD50B is the correct drain for your system, or to identify the appropriate alternative:
- Step 1 — Condensate volume: Estimate condensate output (L/h) based on compressor capacity and ambient humidity. EWD50B handles up to 50 L/h. Choose EWD25 for 50 L/h.
- Step 2 — System pressure: Confirm max operating pressure ≤ 16 bar. For higher-pressure systems, consult Atlas Copco for rated alternatives.
- Step 3 — Port size: Verify drain port is G 3/8″ BSP. Adapters are available for NPT 3/8″ systems.
- Step 4 — Power supply: Confirm 100–240 V AC availability at the installation point.
- Step 5 — Environment: For outdoor or wash-down environments, consider upgrading to IP65-rated alternatives.
- Step 6 — OEM vs. equivalent: If the unit is under Atlas Copco service contract, use OEM EWD50B. For out-of-warranty systems, BEKO BEKOMAT 13 is the most widely validated equivalent.
Quality Assurance & Sourcing
- All units sourced through authorized Atlas Copco distribution channels or verified OEM-equivalent suppliers.
- Each unit inspected for correct part number, packaging integrity, and serial number traceability before dispatch.
- Certificates of conformity and test reports available on request for regulated industries.
- Konmask.com specializes in industrial automation components — we do not supply counterfeit or grey-market parts.
How to Order
- Online: Add to cart directly from this page. Stock availability confirmed at checkout.
- Bulk / project orders: Contact support@konmask.com for volume pricing and lead-time confirmation.
- Urgent requirements: Call +0086 19859288691 for same-day quotation on in-stock units.
- Custom sourcing: If your required model is not listed, send your part number and we will source it for you.
Replacement & Compatibility FAQ
Q: Can I replace the EWD50B with a BEKO BEKOMAT 13?
A: Yes, in most cases. Both are capacitive zero-loss drains rated to 16 bar with G 3/8″ connections. Verify condensate capacity and voltage match your system before installation.
Q: What is the difference between EWD25, EWD50B, and EWD100?
A: The primary difference is condensate handling capacity: 25, 50, and 100 L/h respectively. All share the same zero-loss operating principle and 16 bar pressure rating. Select based on your compressor’s condensate output.
Q: Will using a third-party replacement void my Atlas Copco warranty?
A: Potentially yes. If your compressor is under an Atlas Copco Full Service or Total Responsibility contract, using non-OEM parts may affect warranty terms. Confirm with your service provider before substituting.
Q: How do I know if my EWD50B has failed?
A: Common failure signs include the fault LED illuminating, condensate backing up into the air system, or the drain failing to open/close. The alarm output can be wired to a PLC or BMS for remote fault detection.
Q: Is the EWD50B suitable for outdoor installation?
A: The IP54 rating provides protection against dust and water splashing, but it is not rated for direct rain exposure. For outdoor installations, use an enclosure or select an IP65-rated alternative.
Q: What condensate disposal regulations apply?
A: Oil-contaminated condensate from compressors must not be discharged to drain without treatment in most jurisdictions. Pair the EWD50B with an oil-water separator (e.g., Atlas Copco OSC series) to ensure compliant disposal.
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