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Brass Flare Nut Tube Fittings

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Brass flare nut tube fittings are an integral component in fluid and gas transfer systems, offering a reliable and secure solution for connecting metal tubes to various types of equipment. These fittings are widely used in industries such as automotive, refrigeration, oil and gas, and manufacturing, where robust and leak-free connections are critical. Made from high-quality brass, these flare nut tube fittings are designed to withstand high pressures, extreme temperatures, and corrosive environments, making them an ideal choice for both high-performance and long-term durability. The brass material provides exceptional resistance to corrosion, ensuring that the fittings remain strong and reliable even in harsh conditions.

The primary feature of brass flare nut tube fittings is their innovative flare connection design, which ensures a tight, leak-proof seal. The tube is flared at the end, and the flare nut fitting is then tightened over the flare, compressing the metal tube and forming a secure seal. This design creates a reliable, high-strength connection that can withstand vibrations, pressure changes, and thermal expansion without compromising the integrity of the system. Whether used in high-pressure hydraulic systems or gas pipelines, brass flare nut tube fittings provide an essential solution for ensuring fluid or gas containment and preventing leaks.

Another significant benefit of brass flare nut tube fittings is their ease of installation. These fittings are designed to be easily assembled without requiring specialized tools or equipment. The flare nut, when tightened, forms a secure grip on the tube, providing a firm and long-lasting connection. This makes them particularly well-suited for maintenance and repair operations, as they can be quickly disassembled and reassembled, allowing for easy troubleshooting or modifications. For industries that rely on rapid system setups or routine adjustments, brass flare nut tube fittings offer a time-efficient and cost-effective solution.

In addition to their ease of installation and secure sealing capabilities, brass flare nut tube fittings offer versatility across a wide range of applications. They are commonly used in automotive applications to connect brake lines, fuel systems, and air conditioning systems, where a high-pressure and leak-proof connection is required. Similarly, these fittings are used in refrigeration systems to ensure the tight connection of refrigerant lines. In the oil and gas industry, they are critical for transferring fluids and gases under high pressure, where the integrity of the seal is crucial for both safety and performance. The wide range of available sizes and configurations ensures that these fittings can meet the specific requirements of different systems, providing both flexibility and reliability.

Furthermore, the durability of brass flare nut tube fittings makes them a long-lasting and low-maintenance solution. The brass material, known for its strength and resistance to corrosion, ensures that the fittings can withstand the rigors of demanding applications, including exposure to chemicals, extreme temperatures, and high-pressure environments. Their resistance to corrosion makes them particularly useful in outdoor or marine environments, where exposure to moisture and salts can quickly degrade other materials. By providing a secure, leak-proof connection that requires minimal maintenance, brass flare nut tube fittings help reduce operational costs and downtime, making them an essential choice for industries looking to maintain high system performance and reliability over time.

Specification

Parameter Detail
Fitting Standard SAE J512 / SAE J513 (45∘ Flare)
Material Alloy C36000 Free-Cutting Brass / Forged C37700
Thread Type UNF (Fine) / UNS (Special) Straight Threads
Pressure Rating Up to 1,500 PSI (Dependent on tube wall)
Temperature Range −65∘F to +250∘F (−53∘C to +121∘C)
Tube Compatibility Copper, Aluminum, Soft Steel, Annealed Brass
Hex Size Precision Milled (Imperial/Metric)
Compliance ASTM B16 / ASTM B124 / RoHS

Application

  • HVAC/R Systems: Connecting refrigerant lines in residential split-system air conditioners.
  • Automotive Fuel Lines: Secure connections for fuel supply and return lines in diesel engines.
  • LP and Natural Gas: Certified connections for gas stoves, furnaces, and industrial burners.
  • Pneumatic Brake Systems: High-integrity air line connections in commercial trucking and heavy machinery.

Advantage

  • Vibration Resistance: Mechanical flare lock prevents loosening in high-harmonic environments.
  • Zero Permeability: Metal-to-metal seal is superior for containing refrigerants and light gases.
  • High Reusability: Nut can be disconnected and reconnected multiple times without loss of seal integrity.
  • Non-Sparking Material: Safe for use in explosive environments conveying flammable fuels.
  • No Sealant Required: Eliminates the need for PTFE tape or pipe dope, preventing system contamination.
  • Full-Flow Design: Unlike compression ferrules, the flare does not restrict the internal diameter of the tube.
CONTACT WITH US

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Sincerely welcome foreign and domestic new/old customers to contact us for business negotiation, technical exchange and new brass fittings development.

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A FULL SERVICE

We provide high quality & qualified brass fittings at reasonable prices.

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OEM & ODM SERVICE

We have a professional R&D team can production as customer request.

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THE FACTORY

We are the professional manufacturer of brass fittings,push on fittings,stainless steel fittings...

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HIGH QUALITY

All of our products are passed quality qualifications CE, ISO9001...

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Capacity

Our annual output is 2,500,000 sets/piece can meet the needs of customers purchases.

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DELIVERY

We are only 75 kilometers away from Beilun Port and the exit is very convenient.

About LEGINES

Legines Industrial Machinery Inc.

As China Brass Flare Nut Tube Fittings Manufacturers and Brass Flare Nut Tube Fittings Suppliers. It adopts full CNC machining and owns workshop area of 3600 square meters. 45 automatic machine tools, 35 semi-automatic CNC machine tools,as well as distributors, who have become important suppliers for the production of American standard brass parts in China...
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