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  • Our Products
    • High-Efficiency Rotary Compressors for Dehumidifiers & Air Conditioning Applications
    • Thermostatic Expansion Valves(TXV)
    • Electronic Expansion Valves(EEVs) for HVAC/R
      • KAK Electronic Expansion Valve Controllers (EEV Controllers) – Intelligent Superheat & Temperature Control for HVAC/R Systems
      • KAK NTC Thermistor Temperature Sensors for Refrigerator & Washing Machine – High Accuracy Temperature Control
    • Premium Air Conditioning Service Valves – Durable, Leak-Proof, HVAC/R Applications
    • KAK 4-Way Reversing Valve with Solenoid Coil | Heat Pump & HVAC Directional Control Valve
    • KAK FDF2A Normally Closed Solenoid Valves for Refrigeration & HVAC Systems
    • Diaphragm Check Valves | Copper One-Way Valves for HVAC/R | NBR & Stainless Steel Disc Options
      • Angle Seat Check Valves – Brass 90° Type for HVAC & Refrigeration Systems
    • Copper Access Valves with Brass Schrader Core for Refrigeration & Air Conditioning
    • Refrigeration Ball Valves | Copper & Brass Solder Type Ball Valves for HVAC/R Systems (Custom Sizes Available)
    • HVAC Manifold Gauge Set – Dual Pressure Gauge Valves (Optional with Charging Hoses)
      • KAK Rotary Vane Vacuum Pumps | Single-Stage 7 CFM 1/2 HP 220V | HVAC & Refrigeration Vacuum Pumps
    • KAK Adjustable Propane Torches for Brazing, Welding & Wood Burning | High Output Gas Torch with Flexible Hose
    • Copper HVAC & Refrigerant Line Fittings Manufacturer | ASTM B280 Copper Elbows, Tees & U-Bends
      • Flared Copper Tube Fittings– ASTM B75 Seamless Copper Tubing, Soft Temper for HVAC/R Systems
      • Copper Tube Reducer Fittings – HVAC/R & Plumbing Pipe Size Transition Couplers
      • Copper U-Bend Fittings (Return Bends) for Heat Exchangers, Condensers & HVAC Systems
        • KAK Aluminum Return Bends for HVAC & Refrigeration – High-Precision U-Type Tube Elbows
      • Copper Branch Distributors / Multi-Outlets Copper Fittings for HVAC & Refrigeration Systems
      • KAK Copper Tubing for HVAC Systems – High Precision Refrigeration Copper Pipes (ASTM B280 Standard)
        • KAK Copper Capillary Tubes – Large Coil & Small Roll Series for HVAC/R, Refrigeration & Steam Systems
        • KAK Flared Copper Capillary Tube – Refrigeration & HVAC Precision Flow Tube
      • Copper Branch Fittings (T-Type, Y-Type, Reducing Tee & Distributors) for HVAC/R Systems
      • Equal Elbow Copper Tube Fitting – 90° HVAC/R & Plumbing Connector (15, 18, 22, 28mm / 1/2”, 5/8”, 7/8”, 1-1/8”) – Customization Available
      • Copper P-Traps – Durable Pipe Fittings for Plumbing, HVAC, and Cold Storage Systems
      • KAK Air Conditioner Copper Connection Pipes with Insulation | HVAC & Refrigeration Tubing
    • Custom Stainless Steel Tubes for HVAC/R Heat Exchangers, Evaporators, Condensers & Heat Pumps
      • Premium Stainless Steel Tubes & Coils for Beverage Systems – Custom Sizes & OEM
    • KAK Galvanized Steel Tubes (Single & Double Layer) – Color Zinc / White Zinc Coil Tubing for HVAC & Refrigeration
    • Thermodynamic Solar Panels – Aluminum Heat Exchanger Plate with Copper-Aluminum Connections (Customizable Sizes & Thickness)
    • KAK Refrigerator Condenser Coils | High-Efficiency Cooling for Fridge & Freezer Units
      • Copper Coated Steel Tube (Bundy Tube) for Wire Condenser and Cooling System | KAK HVACR
    • Condenser and Evaporator Coils for HVAC & Refrigeration Systems | Copper Tube Aluminum Fin Design
    • High Efficiency Industrial Finned Tubular Air Heater for HVAC & Environmental Control Units
    • High-Efficiency Microchannel Condensers Heat Exchangers for HVAC & Refrigeration
    • Stainless Steel Shell and Tube Heat Exchangers for HVAC, Pool, and Industrial Systems
    • Plastic-Steel Composite Shell Coil Heat Exchanger for Heat Pumps (R410A) – Copper TP2 / Titanium TA1 Inner Tube
    • Coaxial Heat Exchanger Manufacturer | Spiral Tube-in-Tube Heat Exchangers for HVAC & Heat Pumps
    • Brazed Plate Heat Exchanger (BPHE) for HVAC/R Systems
    • Copper Suction Line Heat Exchanger (SLHE) for Refrigeration & Air Conditioning
    • Three-in-One Liquid Receiver Heat Exchanger with Suction Accumulator | Integrated Refrigeration Solution
    • Suction Line Accumulators with Internal Heat Exchangers(IHX) | KAK Series
    • KAK Liquid Line Filter Driers with Welding & Threaded Connections for HVAC & Refrigeration
      • KAK Copper Filter Drier with ODF Welding Connections for HVAC & Refrigeration
    • KAK Refrigeration Sight Glasses with Moisture Indicator | HVAC & Refrigeration
    • HVAC Liquid Receiver for Refrigeration & Air Conditioning Systems
    • KAK UL-Certified AC Contactors | 2P & 3P | 24V / 220V Coil Options
    • Braided Vibration Absorbers (Vibration Eliminators) for HVAC/R
    • KAK Custom Roll Bond Evaporators – High Efficiency Aluminum Plate Type for Refrigeration & Freezer Units
    • KAK Air Conditioner & Furnace Filter Replacement – MERV 8/11/13 HVAC Filters (16×20, 16×25, 20×20, 20×25)
    • KAK Rubber Foam Pipe Insulation-Closed Cell Thermal Insulation Tube for HVAC, Copper & PEX Pipes
    • Backward-Curved Centrifugal Fan (Customizable)
  • Certifications/QC
  • Download
    • Coaxial-Heat-Exchanger-Selection-Data-Sheet-KAK
  • Contact us
  • FAQ
  • News/Blog
  • Home
  • About us
  • Our Products
    • High-Efficiency Rotary Compressors for Dehumidifiers & Air Conditioning Applications
    • Thermostatic Expansion Valves(TXV)
    • Electronic Expansion Valves(EEVs) for HVAC/R
      • KAK Electronic Expansion Valve Controllers (EEV Controllers) – Intelligent Superheat & Temperature Control for HVAC/R Systems
      • KAK NTC Thermistor Temperature Sensors for Refrigerator & Washing Machine – High Accuracy Temperature Control
    • Premium Air Conditioning Service Valves – Durable, Leak-Proof, HVAC/R Applications
    • KAK 4-Way Reversing Valve with Solenoid Coil | Heat Pump & HVAC Directional Control Valve
    • KAK FDF2A Normally Closed Solenoid Valves for Refrigeration & HVAC Systems
    • Diaphragm Check Valves | Copper One-Way Valves for HVAC/R | NBR & Stainless Steel Disc Options
      • Angle Seat Check Valves – Brass 90° Type for HVAC & Refrigeration Systems
    • Copper Access Valves with Brass Schrader Core for Refrigeration & Air Conditioning
    • Refrigeration Ball Valves | Copper & Brass Solder Type Ball Valves for HVAC/R Systems (Custom Sizes Available)
    • HVAC Manifold Gauge Set – Dual Pressure Gauge Valves (Optional with Charging Hoses)
      • KAK Rotary Vane Vacuum Pumps | Single-Stage 7 CFM 1/2 HP 220V | HVAC & Refrigeration Vacuum Pumps
    • KAK Adjustable Propane Torches for Brazing, Welding & Wood Burning | High Output Gas Torch with Flexible Hose
    • Copper HVAC & Refrigerant Line Fittings Manufacturer | ASTM B280 Copper Elbows, Tees & U-Bends
      • Flared Copper Tube Fittings– ASTM B75 Seamless Copper Tubing, Soft Temper for HVAC/R Systems
      • Copper Tube Reducer Fittings – HVAC/R & Plumbing Pipe Size Transition Couplers
      • Copper U-Bend Fittings (Return Bends) for Heat Exchangers, Condensers & HVAC Systems
        • KAK Aluminum Return Bends for HVAC & Refrigeration – High-Precision U-Type Tube Elbows
      • Copper Branch Distributors / Multi-Outlets Copper Fittings for HVAC & Refrigeration Systems
      • KAK Copper Tubing for HVAC Systems – High Precision Refrigeration Copper Pipes (ASTM B280 Standard)
        • KAK Copper Capillary Tubes – Large Coil & Small Roll Series for HVAC/R, Refrigeration & Steam Systems
        • KAK Flared Copper Capillary Tube – Refrigeration & HVAC Precision Flow Tube
      • Copper Branch Fittings (T-Type, Y-Type, Reducing Tee & Distributors) for HVAC/R Systems
      • Equal Elbow Copper Tube Fitting – 90° HVAC/R & Plumbing Connector (15, 18, 22, 28mm / 1/2”, 5/8”, 7/8”, 1-1/8”) – Customization Available
      • Copper P-Traps – Durable Pipe Fittings for Plumbing, HVAC, and Cold Storage Systems
      • KAK Air Conditioner Copper Connection Pipes with Insulation | HVAC & Refrigeration Tubing
    • Custom Stainless Steel Tubes for HVAC/R Heat Exchangers, Evaporators, Condensers & Heat Pumps
      • Premium Stainless Steel Tubes & Coils for Beverage Systems – Custom Sizes & OEM
    • KAK Galvanized Steel Tubes (Single & Double Layer) – Color Zinc / White Zinc Coil Tubing for HVAC & Refrigeration
    • Thermodynamic Solar Panels – Aluminum Heat Exchanger Plate with Copper-Aluminum Connections (Customizable Sizes & Thickness)
    • KAK Refrigerator Condenser Coils | High-Efficiency Cooling for Fridge & Freezer Units
      • Copper Coated Steel Tube (Bundy Tube) for Wire Condenser and Cooling System | KAK HVACR
    • Condenser and Evaporator Coils for HVAC & Refrigeration Systems | Copper Tube Aluminum Fin Design
    • High Efficiency Industrial Finned Tubular Air Heater for HVAC & Environmental Control Units
    • High-Efficiency Microchannel Condensers Heat Exchangers for HVAC & Refrigeration
    • Stainless Steel Shell and Tube Heat Exchangers for HVAC, Pool, and Industrial Systems
    • Plastic-Steel Composite Shell Coil Heat Exchanger for Heat Pumps (R410A) – Copper TP2 / Titanium TA1 Inner Tube
    • Coaxial Heat Exchanger Manufacturer | Spiral Tube-in-Tube Heat Exchangers for HVAC & Heat Pumps
    • Brazed Plate Heat Exchanger (BPHE) for HVAC/R Systems
    • Copper Suction Line Heat Exchanger (SLHE) for Refrigeration & Air Conditioning
    • Three-in-One Liquid Receiver Heat Exchanger with Suction Accumulator | Integrated Refrigeration Solution
    • Suction Line Accumulators with Internal Heat Exchangers(IHX) | KAK Series
    • KAK Liquid Line Filter Driers with Welding & Threaded Connections for HVAC & Refrigeration
      • KAK Copper Filter Drier with ODF Welding Connections for HVAC & Refrigeration
    • KAK Refrigeration Sight Glasses with Moisture Indicator | HVAC & Refrigeration
    • HVAC Liquid Receiver for Refrigeration & Air Conditioning Systems
    • KAK UL-Certified AC Contactors | 2P & 3P | 24V / 220V Coil Options
    • Braided Vibration Absorbers (Vibration Eliminators) for HVAC/R
    • KAK Custom Roll Bond Evaporators – High Efficiency Aluminum Plate Type for Refrigeration & Freezer Units
    • KAK Air Conditioner & Furnace Filter Replacement – MERV 8/11/13 HVAC Filters (16×20, 16×25, 20×20, 20×25)
    • KAK Rubber Foam Pipe Insulation-Closed Cell Thermal Insulation Tube for HVAC, Copper & PEX Pipes
    • Backward-Curved Centrifugal Fan (Customizable)
  • Certifications/QC
  • Download
    • Coaxial-Heat-Exchanger-Selection-Data-Sheet-KAK
  • Contact us
  • FAQ
  • News/Blog

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