Brass Flare Fittings Manufacturer & Exporter India

We are one of the leading manufacturers, suppliers and exporters of Brass Flare Fittings from India. We have been supplying Brass flare fittings and compression tube fittings to the world market for 3 decades. Brass flare fittings are precision-machined components that use a flared tube end — typically formed at 45° — to create a leak-proof, mechanically robust connection without the need for solder, brazing, or thread sealant. They are widely used in refrigeration, air conditioning, gas supply, LPG, CNG, medical gas, hydraulic, and pneumatic systems. Our Brass flare fittings are manufactured from high-quality Free-Cutting Brass (CW614N / C36000) and Dezincification-Resistant Brass (DZR — CW602N) to meet the demanding requirements of applications where resistance to dezincification, vibration, and pressure cycling is critical. We are ISO 9001:2015, ISO 14001:2015, and ISO 45001:2018 certified, ensuring consistent quality in every fitting we produce. With three decades of export experience, our Brass flare fittings are shipped to customers in the USA, UK, Germany, Australia, UAE, Canada, and across Europe and Southeast Asia, serving refrigeration contractors, gas utility companies, HVAC OEMs, and industrial plumbing distributors.

Our in-house CNC turning centres and multi-spindle automats allow us to produce Brass flare fittings to SAE J513, SAE 45° flare, and metric flare standards across a comprehensive size range. We offer customisation in alloy selection, thread form, flare angle, body configuration, and surface finish. Custom packaging with customer logos and brand labels is standard. Our flexible production scheduling and 4–6 week typical lead time make us the go-to Indian source for Brass flare fittings and tube fittings.

Sub-categories: SAE 45° Brass flare fittings, 45° flare elbows, flare union couplings, flare tee fittings, flare-to-NPT adapters, flare end caps, flare union nuts, flare reducing adapters, flare x male adapters, flare x female adapters

Material Grades — Brass Flare Fittings

Material Properties — CW614N Free-Cutting Brass

Manufacturing Processes

Brass flare fittings are produced by precision CNC bar turning from extruded Brass bar stock (round or hexagonal), which gives consistent dimensional accuracy, tight thread tolerances, and excellent surface finish on the flare seating face. The production sequence begins with incoming material verification (spectrometer analysis for alloy grade conformance), followed by CNC turning to produce the body profile, drilling of through-bores and ports, and thread cutting using precision taps and dies or thread rolling for high-volume items. The 45° flare seat is machined to the critical included angle using precision-ground tool inserts, ensuring a perfectly smooth, concentric seat surface essential for leak-free flare connections. Finished fittings are deburred, inspected for thread form and seat angle, and then surface-treated as specified — nickel plated, chrome plated, or left as natural Brass.

Key manufacturing steps: raw material spectrometer verification, bar turning on CNC lathes (O.D., bore, seat angle), thread cutting (NPT, BSP, UNF, or metric), flare seat angle machining (45° SAE or 37° JIC as specified), deburring and edge breaking, thread and dimensional gauging using go/no-go gauges, surface treatment (plating, passivation, or natural), final visual inspection, and packaging.

Machinery Used

Typical Parts Produced

Our Brass flare fitting range includes the complete SAE J513 45° flare fitting family: flare union couplings (straight male to flare), flare elbows (90° and 45°), flare run tees and branch tees, flare x male NPT adapters, flare x female BSP adapters, flare x female NPT adapters, flare union nuts (hex and knurled), flare end caps, flare x barb adapters, flare check valves, and reducing flare unions. We also produce 37° JIC (Joint Industry Council) flare fittings for hydraulic applications. Custom configurations, non-standard tube sizes, and special thread combinations are produced per customer drawings or samples.

Dimensional Chart — Brass 45° SAE Flare Fittings (Per SAE J513)

Dimensions per SAE J513. Working pressures are for Brass C36000 at ambient temperature. Actual ratings depend on tube material, tube wall thickness, and application.

Metric Flare Fitting Sizes (DIN 8632 / ISO 8434-1)

Surface Finish and Plating Options

International Standards for Brass Flare Fittings

Our Brass flare fittings are manufactured and inspected to the following standards: SAE J513 (Refrigeration Tube Fittings — General Specifications, 45° flare), SAE J514 (Hydraulic Tube Fittings — 37° JIC flare), SAE J1540 (Refrigerant-containing components — test and safety requirements), ASTM B16 (Standard Specification for Free-Cutting Brass Rod, Bar, and Shapes), DIN 8632 (Flared pipe connections — dimensions), ISO 8434-1 (Metallic tube connections for fluid power), BS EN 1254-5 (Copper and Copper alloy fittings for flare), IS 8442 (Brass fittings for LPG applications), and ANSI/ASME B16.26 (Cast Copper Alloy Fittings for Flared Copper Tubes).

Industries Using Brass Flare Fittings

The refrigeration and air conditioning industry is the primary consumer of 45° Brass flare fittings, using them to connect copper refrigerant lines in split AC systems, commercial refrigeration units, and chillers. The LPG and natural gas distribution sector uses Brass flare fittings extensively for low-pressure gas supply connections to domestic and commercial appliances. Medical gas systems (oxygen, nitrogen, medical air) rely on Brass and Silver-plated flare fittings for leak-proof, vibration-resistant connections that meet stringent hygiene and safety requirements. The hydraulic and pneumatic industry uses 37° JIC flare fittings in high-pressure circuits for machinery, presses, and mobile equipment. Automotive fuel systems, CNG (Compressed Natural Gas) vehicle systems, gas chromatography equipment, fire suppression systems, and laboratory gas installations are other significant application areas for Brass flare fittings.

Tolerances

Turnaround Time

Standard Brass flare fittings in SAE 45° configurations for common tube sizes are typically shipped within 4–6 weeks from order confirmation. Metric flare fittings and JIC 37° configurations are similarly timed. Special alloys (DZR Brass, Naval Brass), non-standard thread combinations, or custom body profiles require 5–8 weeks. Sample orders for first article inspection or engineering qualification are dispatched within 2–3 weeks. Air freight is available for urgent requirements.

Performance Metrics

Why Choose Us for Brass Flare Fittings?

Precision is everything in flare fittings — a flare seat angle deviation of even 1° can cause a leak or joint failure under pressure cycling. At Cable Glands India, we invest in precision tooling, rigorous in-process inspection, and CMM verification to ensure every flare fitting leaves our facility dimensionally perfect. Our 30+ years of manufacturing experience and export track record across four continents speak to our reliability as a long-term supply partner.

Precision Flare Seat Geometry: We use precision-ground tool inserts and in-process angle gauges to maintain the 45° SAE flare seat to within ±0.5°. The surface roughness of the flare seat is maintained at Ra ≤ 1.6 µm for optimal sealing against the mating flare. This precision is non-negotiable for leak-free performance in refrigerant and gas applications.

Complete SAE J513 Range: We offer the full family of SAE J513 45° flare fittings — union, elbow, tee, adapter, cap, and reducer — in a complete size range. Matching these to customer bill of materials is straightforward. Custom sizes and non-standard thread cross-overs are regularly produced.

DZR Brass for Dezincification-Sensitive Applications: For customers in the UK and Europe where water quality regulations (Water Fittings Regulations 1999, WRAS approval) require DZR Brass, we supply CW602N DZR Brass flare fittings. This is an important differentiator — many Indian suppliers offer only standard free-cutting Brass.

Custom Packaging and Branding: We supply Brass flare fittings in customer-branded polybags, labelled with part number, size, and barcode. Master cartons carry the customer’s branding. This private-label service is popular with distributors in the USA, Germany, and Australia.

Competitive Pricing: Our India-based manufacturing offers significant cost advantages over European or US manufactured flare fittings — typically 30–50% lower unit cost for equivalent quality and material grade.

Packaging and Shipping

Brass flare fittings are individually packed in polyethylene bags with heat-sealed closures, grouped in resealable inner bags, and packed in double-wall corrugated cartons. Fittings are separated by size and type with inner partitions to prevent mixing. Cartons are clearly marked with fitting type, size, thread, material grade, quantity, and lot number. Pallets are stretch-wrapped and strapped. Export documentation includes commercial invoice, packing list, certificate of origin, MTC, and customs declaration. We export on FOB, CIF, and CFR Incoterms to ports worldwide.

Customer Testimonials

“We source Brass SAE 45° flare fittings and flare adapters from Cable Glands India for our refrigeration line card in the USA. The quality is excellent — flare seats are consistently within tolerance, thread gauging is done properly, and the fittings assemble perfectly with SAE 45° flare nuts without any cross-threading. Their packaging is professional, and their 5-week delivery keeps our inventory well-stocked. A reliable, honest Indian manufacturer.”

— Robert J. Carson, Vice President – Procurement, Denver, Colorado, USA

“As a Canadian HVAC distributor, we’ve worked with several Asian suppliers for Brass flare fittings. Cable Glands India stands out for their attention to detail and their willingness to supply DZR Brass grades for our British Columbia projects. Their technical team understands SAE J513 requirements thoroughly, and their communication during production is exemplary. We have zero complaints in four years of business.”

— Sandra L. Bouchard, Purchasing Manager, Toronto, Canada

Typical Q & A Session — Brass Flare Fittings

Q1. What is a flare fitting and how does it work?
A. A flare fitting creates a connection by deforming the end of a metal tube into a conical (flared) shape. When the flare nut is tightened onto the fitting body, the flared tube end is compressed against the matching machined seat on the fitting, creating a metal-to-metal seal without any gasket or sealant.

Q2. What is the difference between 45° SAE and 37° JIC flare fittings?
A. SAE 45° (SAE J513) fittings use a 45° flare cone angle and are primarily used in refrigeration, AC, LPG, and domestic gas applications. JIC 37° (SAE J514) fittings use a 37° flare cone angle and are designed for hydraulic tube systems operating at higher pressures. The two standards are NOT interchangeable.

Q3. What thread form is standard for SAE 45° flare fittings?
A. SAE 45° flare fittings use UNF (Unified Fine) threads on the flare nut-to-body connection. Common thread sizes include 3/8-24 UNF (for 3/16″ tube), 7/16-20 UNF (for 1/4″ tube), and so on as specified in SAE J513.

Q4. Can you supply metric flare fittings?
A. Yes. We supply metric flare fittings per DIN 8632 / ISO 8434-1 for tube sizes from 6 mm to 22 mm with metric threads.

Q5. What is DZR Brass and when is it required?
A. Dezincification-Resistant (DZR) Brass is an alloy (CW602N / C35300) with a small addition of Arsenic that inhibits the preferential leaching of zinc (dezincification) in certain water conditions. It is required in the UK under the Water Fittings Regulations 1999 for fittings in potable water systems and is also specified for gas utility applications in some European markets.

Q6. Are your flare fittings compatible with SAE J513 fittings from other brands?
A. Yes. Our SAE 45° flare fittings are manufactured precisely to SAE J513 dimensional standards and are fully interchangeable with other SAE J513-compliant fittings from any brand.

Q7. What refrigerants are compatible with Brass flare fittings?
A. Brass flare fittings are compatible with common refrigerants including R-22, R-404A, R-410A, R-134a, R-290 (propane), R-32, and R-600a (isobutane). For HFO refrigerants (R-1234yf, R-1234ze), please confirm compatibility with the specific refrigerant manufacturer.

Q8. What is the pressure rating of your Brass flare fittings?
A. Typical working pressures range from 300–1500 psi (20–103 bar) depending on tube size, fitting configuration, and temperature. Full pressure ratings per SAE J513 are available on request.

Q9. Do you supply flare fittings for medical gas applications?
A. Yes. We supply Silver-plated Brass flare fittings for medical gas systems (oxygen, nitrogen, medical air) conforming to NFPA 99 and ISO 7396 requirements. Please specify the medical gas application when enquiring.

Q10. Can you produce non-standard tube size flare fittings?
A. Yes. Non-standard tube O.D. sizes, reducing configurations, and custom thread combinations are produced per customer drawings. DFM review is provided at no charge.

Q11. What is your MOQ for Brass flare fittings?
A. Standard sizes and configurations: MOQ is 100 pieces per size. Custom configurations: MOQ is subject to material and setup cost discussion, typically 200–500 pieces.

Q12. Do you supply flare fitting assembly kits?
A. Yes. We can assemble and supply kits containing matched flare bodies, nuts, and sleeves for specific tube sizes, packaged together per customer requirements.

Q13. What surface finish is standard for refrigeration use?
A. Natural Brass (as-machined) is the standard finish for refrigeration applications. Nickel plating is available for enhanced corrosion resistance in outdoor or marine environments.

Q14. What is your lead time?
A. Standard SAE 45° Brass flare fittings: 4–6 weeks. Metric or JIC 37° fittings: 4–6 weeks. Custom configurations: 5–8 weeks. Samples: 2–3 weeks.

Q15. Can you supply private-label packaged flare fittings?
A. Yes. We offer full private-label packaging with customer branding, part numbers, and barcodes. This is a popular service for distributors and importers in the USA, Europe, and Australia.

Q16. Do you supply flare fittings in materials other than Brass?
A. We primarily supply Brass flare fittings. Stainless Steel SAE 45° and JIC 37° flare fittings in SS 316 are also available — please enquire with your specific requirement.

Glossary of Terms

SAE J513: Society of Automotive Engineers standard specifying dimensions, materials, and test requirements for 45° flare tube fittings used in refrigeration and air conditioning systems. JIC (Joint Industry Council) 37°: A flare fitting standard using a 37° seat angle, used predominantly in hydraulic tube systems. Not interchangeable with SAE 45° fittings. Flare Nut: The hexagonal nut that slides over the tube before flaring and is tightened onto the fitting body to compress the flared tube end against the fitting seat. UNF (Unified Fine Thread): A thread standard commonly used on SAE flare fitting nuts and bodies, with finer pitch than UNC for vibration-resistant connections. DZR Brass (Dezincification-Resistant Brass): A Brass alloy with Arsenic addition that resists the preferential zinc leaching (dezincification) that can occur in certain corrosive water conditions. Flare Tool: A tool used to deform the end of a metal tube into the required flare cone angle before assembly of the flare fitting.

Related Parts

Brass SAE 45° flare fittings, Brass JIC 37° flare fittings, Brass flare union, Brass flare elbow, Brass flare tee, Brass flare adapter, Brass flare nut, Brass tube fittings, Brass compression fittings, Brass refrigeration fittings, Brass LPG fittings, Brass CNG fittings, Brass NPT to flare adapter, Brass BSP to flare adapter, metric flare fittings, Stainless Steel flare fittings, Copper flare fittings, DZR Brass fittings, WRAS approved Brass fittings