Foshan Dongliu Automation Technology Co., Ltd.
                                                                                                           
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14 Years
Since 2012
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High-Pressure Nitrogen Leak Detector for HVAC Production - 1.5-4.5MPa Testing Range, 430×550×1300mm Dimensions

Price Negotiable
Price: $3,000.00/sets 1-4 sets
MOQ: 1
Delivery Time: 15 days
Brand: Dongliu
Product Description
High-Pressure Nitrogen Leak Detection System

This automated quality control system identifies gross leaks in HVAC/R assemblies during production, preventing costly downstream failures and ensuring compliance with industry standards.

Applications
  • Residential AC systems: Evaporator/condenser coils and copper tubing
  • Commercial systems: Chiller shell-and-tube heat exchangers (tested at 30+ bar)
  • Heat pumps: Hydraulic modules with oil-resistant seals
  • Refrigerators and water dispensers: Hermetic compressor systems
Operation Process
  • High-Pressure Nitrogen Injection: Automated pressurization with dry nitrogen gas (15-40 bar/218-580 psi)
  • Pressure Stabilization: 1-5 minute hold for temperature equilibration
  • Pressure Decay Measurement: Precision sensors monitor pressure drop (resolution to 0.1 Pa)
  • Automated Decision & Rejection: Leaky units diverted via reject gates
Key Benefits
  • Cost Savings: Prevents waste of expensive materials and reduces rework labor by 60%
  • Downstream Protection: Stops contaminated units from damaging charging stations
  • Efficiency: ≤60-second test cycles with 98% gross leak detection rate
Technical Specifications
Parameter Specification
Detection Accuracy 5KPa/5S
Detection Time 5-30 minutes per unit (configurable)
Pressure Testing Range 1.5-4.5 MPa (configurable)
Visualization System Touch screen display
Control System PLC logical control
Connection Tube Length 3 meters standard (customizable)
Power Supply AC220V 50Hz / 0.3Kw
Product Dimensions 430 × 550 × 1300 mm
Service & Support
Pre-sales Services
  • Custom design solutions tailored to production requirements
  • Professional technical training for equipment operation and maintenance
After-sales Support
  • 1-year warranty with on-site maintenance
  • 24-hour response time for service requests
  • Video technical support and online assistance
Frequently Asked Questions
What is your delivery time?
7-30 days depending on order quantity
How about overseas installation service?
We provide 3-5 engineers for field installation, commissioning, and training. Customers cover travel and accommodation expenses.
Are you a manufacturer or trading company?
We are professional manufacturers of air conditioner and heating assembly lines with 12,000 sqm production facility and 150 employees.

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Foshan Dongliu Automation Technology Co., Ltd.
Location 101 Unit,1st Floor, No.8 Building Area 1, Wanyang Science and Technology Park, Huangchong Industrial Avenue, Huanglong Village, Beijiao Town, Shunde District, Foshan City, Guangdong Province,China.
Contact Person Connie Liang

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