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Air Conditioner Unions

High-quality Air Conditioner Unions manufactured from MS58 brass, joining two copper tubes in a leak-proof manner. Reliable connection for your HVAC-R systems.

Air Conditioner Unions

Uninterrupted and Reliable Flow in Copper Pipe Lines

In air conditioning and refrigeration (HVAC-R) systems, extending copper pipe lines or connecting two separate pipes is a critical operation for system continuity. This connection must be both mechanically sound and flawlessly gas-tight. To meet this essential need, Sintes produces Air Conditioner Unions that guarantee leak-tightness and long life, manufactured to high engineering standards.

The Perfect Combination of Sealing and Durability

An Air Conditioner Unions consists of two main components: a main body with an external thread designed to join with flared fittings on both ends. This design works on the principle of metal-to-metal contact, providing excellent sealing without the need for an additional gasket. The MS58 brass material we use as standard in our production provides our products with the following advantages:

  • Superior Corrosion Resistance: Provides maximum protection against corrosion that can be caused by refrigerants and external environmental conditions.
  • High Mechanical Strength: Offers extraordinary durability against system vibrations, pressure, and tightening-loosening operations.
  • Precisely Machined Surfaces: Both the threaded parts and the conical (flared) surfaces where the flare nut contacts are smooth and flawless. This directly increases ease of assembly and sealing performance.

Ease of Application and Installation

Sintes Air Conditioner Unions are designed with ease of installation in mind. The hexagonal body in the center allows for counter-support with a wrench during assembly, enabling the flare nuts to be tightened safely and at the correct torque. This feature ensures that the connection is both robust and prevents damage to pipes or other components.

Technical Specifications

  • Material: High-Quality MS58 Brass
  • Production Technique: Precision Machining
  • Connection Type: Double-Sided Flared (Flare) External Thread
  • Application Areas: Split and multi-split air conditioners, VRF/VRV systems, cold storage rooms, industrial refrigeration lines, and all fluid systems using copper pipes.
  • Available Sizes: 1/4″, 3/8″, 1/2″, 5/8″, 3/4″ and other standard pipe diameters.

Choose Air Conditioner Unions produced with Sintes’ quality and experience to create a reliable, leak-proof, and long-lasting connection point in your copper pipe lines. Do not hesitate to contact our expert team for your project-specific size or design requests.