Dongguan Baoyuan Refrigeration Accessories Co., Ltd. was founded in 2015. Our company’s main products include air conditioning connecting pipes, air conditioning copper aluminum connecting pipes, air conditioning copper pipes, and air conditioning peripheral accessories.

Our company integrates research and development, design, production, sales, and after-sales service, based on the industry, leading the development. The company covers an area of 2000 square meters, with 30 types of production equipment and more than 20 professional talents. The company has a strong industrial foundation and can meet the requirements of batch matching. Customizing products according to customer needs is its characteristic business. Our strong talent reserve and rich work experience enable us to meet various personalized products.

1. Pure Copper Tubes for Air Conditioners

• Seamless copper tubes: TP2 / C12200 phosphorus-deoxidized seamless copper pipes, used for refrigerant circulation in central air conditioning, VRF systems and heat pumps.
• Inner-grooved copper tubes: High-efficiency heat exchange tubes for evaporators and condensers.
• Sizes: OD from Φ6.35mm to Φ38mm, available in soft coils and hard-drawn straight pipes, complying with ASTM B280, GB/T 17791 standards.

2. Air Conditioner Connecting Pipes & Pre-Insulated Line Sets

• Insulated copper line sets: Paired liquid and gas pipes with PE or rubber insulation, equipped with flare nuts and fittings.
• Dual-tube / multi-tube assemblies: Factory-assembled ready-to-install kits for residential and commercial AC systems.
• Lengths: Standard 3m–20m, customizable up to 50m for long-run installations.

3. Copper-Aluminum Composite Tubes

• Copper-aluminum connecting pipes: Copper ends with aluminum middle section for lightweight and cost-effective applications.
• Features: Stable pressure resistance, good thermal performance, easy installation.
• Applications: Split AC units, light commercial HVAC, budget-focused projects.

4. Refrigeration & Air Conditioning Accessories

• Brass flare nuts, copper fittings, VRF branch joints (refnet joints), pipe clamps and brackets.
• PE insulation tubes, binding tape, sealing gaskets and installation accessories.
• Customized piping components and OEM/ODM assembly kits.

Applications

• Residential air conditioners, mini-split and multi-split systems
• Commercial central air conditioning, VRF/VRV systems
• Heat pumps, water chillers, cold storage and other refrigeration equipment
• Compatible with eco-friendly refrigerants: R410A, R32, R454C, etc.

The company offers diverse cooperation modes including OEM/ODM cooperation, distribution agency cooperation and project channel cooperation for global partners.

1. Superior Material & Corrosion Resistance

• High-Grade Copper Alloys (TP2/C12200 Phosphorus Deoxidized Copper)
   
  Excellent thermal conductivity, ductility, and pressure resistance. Resists oxidation and stress corrosion cracking under long-term refrigerant exposure.
• Premium Insulation Materials
   
  Closed-cell PE / rubber insulation with low thermal conductivity, high flame resistance, and anti-aging properties. Stable performance from -40°C to 120°C.
• Brass & Stainless Steel Fittings
   
  Forged brass and stainless steel ensure high strength, leak-proof sealing, and resistance to vibration and chemical corrosion.

2. Leak-Proof & Pressure-Resistant Design

• Precision Welding & Flaring Technology
   
  Automated CNC welding and precision flaring ensure uniform, defect-free joints. Zero internal leakage under high-pressure testing (up to 4.0–6.0 MPa).
• Advanced Sealing Systems
   
  High-performance EPDM / silicone gaskets and O-rings maintain integrity across extreme temperature and pressure cycles.
• Burst Pressure Safety
   
  Pipes and fittings meet or exceed international standards (ASTM B280, GB/T 17791), with burst pressures 2–3x working pressure.

3. High Thermal Efficiency & Energy Saving

• Inner-Grooved Copper Tubes
   
  Enhanced internal surface area increases heat exchange efficiency by 15–25% vs. smooth tubes. Improves system COP by 0.15–0.25 points.
• Optimized Flow Paths
   
  Smooth inner surfaces and precision bending minimize flow resistance, reducing compressor energy consumption.
• Precision Control Components
   
  Electronic expansion valves (EEVs) and thermostatic expansion valves (TXVs) deliver ±1–2% flow control accuracy (vs. ±10% for conventional valves), cutting energy use by 10–20%.

4. Vibration Damping & Noise Reduction

• Flexible Soft-Copper Tubing
   
  Absorbs mechanical vibration and compressor noise, preventing fatigue failure.
• Insulation & Vibration Isolation
   
  Thick, closed-cell insulation dampens refrigerant flow noise and reduces sound transmission.
• Anti-Wear & Anti-Noise Design
   
  Special protective sleeves and buffer structures eliminate metal-to-metal contact, lowering operational noise.

5. Compatibility with Eco-Friendly Refrigerants

• Wide Refrigerant Compatibility
   
  Fully compatible with R32, R410A, R454C, R134a, R290, CO₂ and other low-GWP refrigerants.
• Material Stability
   
  Copper and brass resist chemical degradation from modern refrigerants and lubricants.
• Low Permeability
   
  High-density materials minimize refrigerant leakage, supporting global environmental goals.

6. Durability & Long Service Life

• Anti-Aging & Weather Resistance
   
  Insulation and external coatings resist UV, ozone, and humidity degradation.
• Fatigue Resistance
   
  Withstands 200,000+ pressure cycles without failure.
• Low Maintenance Design
   
  Corrosion-resistant, self-cleaning surfaces reduce maintenance needs.

7. Precision Manufacturing & Quality Control

• Full Automation Production
   
  Continuous casting, rolling, drawing, and annealing ensure dimensional accuracy (±0.02 mm) and consistent mechanical properties.
• Strict Testing Standards
   
  100% pressure testing, helium leak detection, eddy current testing, and salt-spray testing.
• Certifications
   
  ISO 9001, CE, UL, RoHS, and ASTM compliance.

8. Flexibility & Easy Installation

• Pre-Insulated Line Sets
   
  Factory-assembled with insulation, flare nuts, and fittings—tool-free, fast installation.
• Custom Lengths & Configurations
   
  Standard 3–20m, customizable to 50m+.
• Lightweight & Compact
   
  Copper-aluminum composite tubes reduce weight by 30–40% while maintaining performance.

9. Sustainable & Eco-Friendly Production

• Recyclable Materials
   
  100% recyclable copper and brass.
• Low-Carbon Manufacturing
   
  Energy-efficient production and waste recycling systems.
• PFAS-Free & Non-Toxic
   
  Insulation and components free of harmful substances.

Summary: Core Value of Baoyuan Refrigeration Accessories

• High Efficiency: Boosts system COP by 10–25%
• Extreme Reliability: Service life 15–25 years
• Leak-Proof Safety: Zero-defect sealing under harsh conditions
• Energy & Cost Savings: Reduces power use by 10–20%
• Eco-Compliant: Supports low-GWP refrigerants and circular economy
• Global Compatibility: Meets ASTM, GB, CE, UL standards

The company provides 7×12 hours service response, 100% simulation test for products and 1V1 after-sale training for partners. It also has a professional R&D team and complete testing equipment to provide strong technical support for product customization and problem solving.