Diaphragm pump WL55 DCB

fuel oilfor gasolinefor wastewater

Overview
The WL55 DCB 220V solenoid pump family provides compact, electromechanically driven diaphragm or piston pumping for precise dosing, metering and automation in industrial and commercial systems. Designed for low-to-medium flow applications where repeatability, chemical compatibility and a small footprint are required.

Key Features

• Precision dosing: Delivers repeatable, accurate volumes suitable for metering tasks.
• Self-priming: Can lift fluid from below the pump inlet without external priming.
• Not suitable for dry-run: Requires liquid lubrication; operation without fluid can damage the unit.
• Compact design: Small footprint for OEM integration and installations with limited space.
• High outlet pressure: Capable of producing significant discharge pressure relative to size for dosing/transfer.
• Corrosion-resistant wetted materials: Variants offer engineered plastics (e.g., PTFE, PVDF) and chemical-resistant seals (e.g., Viton) for aggressive fluids.
• Low power consumption: Efficient electromagnetic coil design reduces energy draw.
• Simple, durable mechanism: Fewer moving parts for extended service life when used within specifications.

Performance Characteristics & Operational Notes

• Pulsed flow output: Pumping action is reciprocating and inherently pulsed; use a pulsation dampener where steady flow is required.
• Noise & vibration: Audible hum and vibration may occur from plunger/diaphragm movement; consider mounting and damping in noise-sensitive environments.
• Duty cycle limitations: Verify model-specific on-time rating; continuous operation beyond rated duty may cause overheating.
• Flow rate range: Best suited to low and medium flow rates; for high-volume transfers select alternative pump types.
• Particle sensitivity: Small clearances and check valves can clog; recommend inlet filtration for dirty fluids.

Applications

• Water treatment: Dosing of chlorine, pH adjusters and flocculants in municipal and wastewater systems.
• Agriculture & hydroponics: Injection of fertilizers and nutrients into irrigation lines.
• Industrial manufacturing: Metering additives, colorants, fragrances; handling coolants and lubricants.
• Medical & laboratory: Analytical instruments, dialysis support and other precise fluid dosing systems (assess variant compatibility with medical fluids).
• Commercial equipment: Vending machines, commercial coffee/foodservice equipment, car‑wash chemical dispensers.
• HVAC: Dosing biocides and corrosion inhibitors into cooling towers and boiler systems.
• Printing & packaging: Metering inks, adhesives and additives in production processes.
• Automotive: Small-volume dosing of oils, fuels or urea (DEF) in test or service equipment.

Troubleshooting Guidance (Common Faults, Causes & Remedies)

• Pump will not start / only hums: Check power supply, fuses and coil continuity; replace coil if open.
• Pump hums but does not pump: Inspect for stuck plunger or air lock; disassemble, clean chamber and ensure proper priming.
• Low flow rate: Check for clogged inlet filter, worn valves or partially stuck plunger; clean or replace as needed.
• Head leak: Inspect O‑rings, head bolts and diaphragm for damage; tighten bolts and replace seals/diaphragm if required.
• Pump cycles but will not draw fluid: Look for suction air leaks or misinstalled/stuck check valves; verify fittings and valve orientation.
• Pump overheats: Reduce duty cycle, improve ventilation/cooling or confirm correct supply voltage.

Additional Resources
Datasheet (PDF) and a product video demonstrating WL55 DCB operation and variant options are available for download and review.

Technical Specifications

• Model: WL55 DCB
• Supply voltage: 220V AC
• Rated frequency: 50 Hz or 60 Hz (verify model-specific rating)
• Typical input power: ~53 W (verify on specific datasheet)
• Wetted materials: Engineered plastics (examples: PTFE, PVDF) and chemical-resistant seals (e.g., Viton) depending on variant
• Pumping principle: Electromagnetic solenoid driving diaphragm or piston (reciprocating)
• Flow characteristic: Pulsed/reciprocating flow suitable for precise dosing
• Suction: Self-priming capability
• Recommended protections: Inlet filtration; observe duty cycle rating to prevent overheating