53123-A

53123-A

£158.39 GBP
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53123-A

53123-A

£158.39 GBP
Shipping calculated at checkout.

Refillable Universal UV Dye/Oil Injector — Professional Leak Detection

The Mastercool 53123-A is a refillable piston-type UV dye and oil injector designed for professional HVAC/R and automotive A/C leak detection. Featuring a 60ml capacity, auto shut-off valve adapter, and 1/4" connection, this versatile injector allows you to inject UV dye or oil into A/C systems for accurate leak location. Simply connect to the low side of the system and twist the handle until you reach the desired amount.

Key Features

  • Refillable Design: Reusable injector reduces waste and cost
  • 60ml Capacity: Sufficient volume for multiple applications
  • Piston-Type Operation: Precise control of injection amount
  • Auto Shut-Off Valve Adapter: Prevents refrigerant loss during injection
  • 1/4" Connection: Standard SAE fitting for universal compatibility
  • Dual Purpose: Inject UV dye or oil as needed
  • Easy Operation: Twist handle to inject desired amount
  • Professional Quality: Built for daily workshop use

Technical Specifications

  • Model: 53123-A
  • Type: Refillable piston-type UV dye/oil injector
  • Capacity: 60ml (2 oz)
  • Connection: 1/4" SAE with auto shut-off valve adapter
  • Compatible Refrigerants: R134a and other standard refrigerants
  • Includes: Injector with auto shut-off valve adapter (dye not included)
  • Barcode: 700376102765
  • SKU: 53123-A
  • HS Code: 84189910

Applications

  • UV dye injection for leak detection
  • Oil injection for A/C system lubrication
  • HVAC/R system leak diagnostics
  • Automotive A/C leak detection
  • Commercial refrigeration leak testing
  • Professional A/C service and maintenance

Related Injector Models

With UV Dye Included:

  • 53123 — Refillable Universal Dye Injector with auto shut-off valve adapter and 2 oz bottle of concentrated A/C dye (25 applications)

R134a Specific Models:

  • 53134 — Refillable Dye Injector with R134a 13mm connection and 2 oz bottle of concentrated A/C dye (25 applications)
  • 53134-A — Refillable Dye Injector (without dye) with R134a 13mm connection

Alternative Connection:

  • 53322 — Refillable Dye Injector with 1/4" auto shut-off valve connection and 2 oz bottle of concentrated A/C dye (25 applications)

R1234yf Version:

Replacement Hose:

Complete UV Leak Detection Kits:

Why Choose the 53123-A?

  • Refillable: Cost-effective and environmentally friendly
  • Versatile: Inject UV dye or oil as needed
  • Precise Control: Piston-type design for accurate dosing
  • Auto Shut-Off Valve: Prevents refrigerant loss during injection
  • Universal Compatibility: 1/4" SAE connection works with most systems
  • Professional Quality: Built for daily workshop use
  • Easy to Use: Simple twist-handle operation
  • 60ml Capacity: Sufficient for multiple applications

Perfect For

  • HVAC/R service technicians
  • Automotive A/C specialists
  • Commercial refrigeration technicians
  • Workshop and service centres
  • Mobile A/C service operations
  • Fleet maintenance facilities
  • Professional leak detection operations

Operation

  1. Fill injector with UV dye or oil (up to 60ml capacity)
  2. Connect auto shut-off valve adapter to low-side service port
  3. Ensure A/C system is running or pressurised
  4. Twist handle slowly to inject desired amount into system
  5. Monitor injection amount (typically 1-2 oz for automotive A/C, more for larger systems)
  6. Disconnect injector when complete
  7. Allow dye to circulate through system (run A/C for 10-15 minutes)
  8. Use UV light to locate leaks (dye will fluoresce at leak points)

UV Dye Leak Detection Process

  1. Inject Dye: Use 53123-A to inject UV dye into A/C system
  2. Circulate: Run system for 10-15 minutes to distribute dye
  3. Inspect with UV Light: Use UV leak detection light to scan system
  4. Locate Leaks: Dye will fluoresce bright yellow-green at leak points
  5. Mark Leaks: Identify exact leak location for repair
  6. Repair: Fix identified leaks
  7. Verify: Re-inspect with UV light after repair

Refillable vs Disposable Injectors

Refillable (53123-A - This Model):

  • Cost-effective for regular use
  • Environmentally friendly - less waste
  • Refill with your choice of UV dye or oil
  • Professional quality construction
  • Long-term investment for workshops

Disposable:

  • Convenient for occasional use
  • Pre-filled with dye
  • No cleaning required
  • Higher cost per application

The 53123-A refillable injector is ideal for professional workshops performing regular leak detection, offering significant cost savings over disposable injectors.

UV Dye Types

The 53123-A can be filled with various UV dyes:

  • Universal A/C Dye: Works with all refrigerants
  • POE Oil Compatible: For systems using polyolester oil
  • PAG Oil Compatible: For systems using polyalkylene glycol oil
  • Concentrated Dye: Typically 25 applications per 2 oz bottle

Always use UV dye compatible with your system's refrigerant and oil type.

Auto Shut-Off Valve Adapter

The included auto shut-off valve adapter provides several benefits:

  • Prevents Refrigerant Loss: Valve closes when injector is disconnected
  • Safe Operation: Minimises refrigerant emissions
  • Convenient: No need to recover refrigerant before injection
  • Professional Standard: Industry best practice for dye injection

Maintenance

  • Cleaning: Rinse injector with appropriate solvent after each use
  • Storage: Store in clean, dry environment
  • Inspection: Check seals and piston for wear regularly
  • Replacement Parts: Hose assembly available (53223-001D)

Safety Guidelines

  • Always wear safety glasses when working with pressurised systems
  • Ensure adequate ventilation
  • Follow manufacturer's recommendations for dye quantity
  • Do not overfill A/C system with dye
  • Use appropriate UV dye for refrigerant and oil type
  • Follow proper refrigerant handling procedures

Professional Quality: Mastercool UV dye injectors are built to professional standards for reliable, accurate leak detection in HVAC/R and automotive A/C service environments. The 53123-A refillable injector provides cost-effective, versatile dye and oil injection for professional leak detection operations.

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