Pioneer Industries is an internationally recognized manufacturer and supplier of heavy-duty Brass Flare Female Connectors, designed to join 45° flared tubing directly to male NPT, BSPT, or ISO tapered pipe threads in industrial fluid, refrigeration, and pneumatic piping circuits.
The Brass Flare Female Connector manufactured by Pioneer Industries provides a rock-solid industrial adapter bridging 45° flared copper, brass, or aluminum tubing to standard male national pipe taper (NPT) or British standard pipe taper (BSPT) threaded equipment ports. Featuring a precision CNC-machined external 45-degree SAE male cone on one end and a high-tolerance internal female pipe thread on the opposing end, this connector ensures leak-free fluid transmission across severe thermal cycles and mechanical pressure fluctuations.
Engineered to SAE J512, SAE J513, and ASME B16.26 manufacturing standards, our female flare connectors are hot-forged or extruded from high-grade brass alloys (BS 218/CW617N and BS 249/CW614N). The robust hex profile provides ample wrenching engagement for rapid torque transmission, preventing fitting distortion during rigorous field installation across HVAC, oil and gas, refrigeration, and chemical instrumentation systems.
Pioneer Industries supplies premium Brass Flare Female Connectors to prominent industrial OEMs, petrochemical refineries, marine operators, and HVAC contractors worldwide. Operating with extensive warehouse inventories in Mumbai, India, we facilitate immediate dispatch of standard fractional sizes from 1/8" to 3/4" tube OD alongside custom metric-to-pipe thread configurations.
Every connector manufactured at our modern facility undergoes strict dimensional inspection utilizing computerized optical comparators, thread pitch micrometers, and surface finish profilometers. Pioneer Industries maintains comprehensive batch traceability and provides EN 10204 Type 3.1 material test certificates with each export consignment.
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Pioneer Industries’ Brass Flare Female Connector solves critical piping challenges when connecting flared instrument lines to male pipe manifolds, pressure transmitters, refrigeration solenoid valves, and tank discharge ports. The precision-turned 45° cone creates an impenetrable metal-to-metal wedge seal with the tube flare when drawn down by an SAE flare nut, effectively resisting vibration loosening and thermal fatigue.
On the female pipe port, deep cut NPT threads engineered to ANSI/ASME B1.20.1 standards feature uniform taper geometry, allowing maximum thread engagement and mechanical anchoring. The dense, micro-grain brass microstructure withstands high burst pressures up to 4,500 PSI while resisting internal cavitation and atmospheric dezincification.
Pioneer Industries manufactures Brass Flare Female Connectors in sizes ranging from 1/8" to 3/4" tube OD with 1/8" to 3/4" female NPT/BSPT pipe threads. Standard operating pressures up to 4,500 PSI (310 bar). Complies with SAE J512, SAE J513, ASME B16.26, and IS 319 specifications.
Explore comprehensive engineering dimensional configurations for Fractional Inch Series, Metric Series, and Certified Material Specifications. Manufactured according to SAE J512, SAE J513, ASME B16.26, and international standards.
| Part No. | Tube O.D. (T) | Male Flare (UNF) | Female NPT (P) | Hex Size (F) | Overall Length (L) | Weight (approx) | Working Pressure |
|---|---|---|---|---|---|---|---|
| PI-FFC-0402 | 1/4" | 7/16-20 UNF | 1/8" NPT | 9/16" | 1.12" | 42 g | 4,500 PSI |
| PI-FFC-0404 | 1/4" | 7/16-20 UNF | 1/4" NPT | 11/16" | 1.25" | 58 g | 4,500 PSI |
| PI-FFC-0504 | 5/16" | 1/2-20 UNF | 1/4" NPT | 11/16" | 1.28" | 64 g | 4,000 PSI |
| PI-FFC-0604 | 3/8" | 5/8-18 UNF | 1/4" NPT | 13/16" | 1.38" | 78 g | 3,500 PSI |
| PI-FFC-0606 | 3/8" | 5/8-18 UNF | 3/8" NPT | 13/16" | 1.40" | 86 g | 3,500 PSI |
| PI-FFC-0806 | 1/2" | 3/4-16 UNF | 3/8" NPT | 15/16" | 1.56" | 112 g | 3,000 PSI |
| PI-FFC-0808 | 1/2" | 3/4-16 UNF | 1/2" NPT | 1-1/16" | 1.75" | 135 g | 3,000 PSI |
| PI-FFC-1008 | 5/8" | 7/8-14 UNF | 1/2" NPT | 1-1/16" | 1.88" | 168 g | 2,500 PSI |
| Part No. | Tube O.D. (mm) | Thread Profile (UNF) | Female Thread (NPT) | Hex Size (mm) | Overall Length (mm) | Weight (g) | Working Pressure (bar) |
|---|---|---|---|---|---|---|---|
| PI-FFC-M0602 | 6 mm | 7/16-20 UNF | 1/8" NPT | 14 mm | 28.5 mm | 42 g | 310 bar |
| PI-FFC-M0604 | 6 mm | 7/16-20 UNF | 1/4" NPT | 17 mm | 31.8 mm | 58 g | 310 bar |
| PI-FFC-M0804 | 8 mm | 1/2-20 UNF | 1/4" NPT | 17 mm | 32.5 mm | 64 g | 276 bar |
| PI-FFC-M1004 | 10 mm | 5/8-18 UNF | 1/4" NPT | 21 mm | 35.0 mm | 78 g | 241 bar |
| PI-FFC-M1006 | 10 mm | 5/8-18 UNF | 3/8" NPT | 21 mm | 35.6 mm | 86 g | 241 bar |
| PI-FFC-M1206 | 12 mm | 3/4-16 UNF | 3/8" NPT | 24 mm | 39.6 mm | 112 g | 206 bar |
| PI-FFC-M1208 | 12 mm | 3/4-16 UNF | 1/2" NPT | 27 mm | 44.5 mm | 135 g | 206 bar |
| PI-FFC-M1608 | 16 mm | 7/8-14 UNF | 1/2" NPT | 27 mm | 47.8 mm | 168 g | 172 bar |
| Component | Material Specification | Standard Specification | Chemical Composition | Mechanical Properties | Temperature Limits | Key Features |
|---|---|---|---|---|---|---|
| Extruded / Forged Body | Forging Brass (BS 218 / CW617N) | BS EN 12165 / ASTM B283 C37700 | Cu: 57.0–59.0%, Pb: 1.6–2.5%, Zn: Rem. | Tensile ≥ 440 MPa, 110–150 HB | -54°C to +121°C | Contoured grain flow, dense wall structure, zero porosity, high shock resistance |
| Female Pipe Thread Port | Free Cutting Brass (BS 249 / CW614N) | IS 319 Gr. 1 / ASTM B16 C36000 | Cu: 58.0–60.0%, Pb: 1.5–3.0%, Zn: Rem. | Tensile ≥ 400 MPa, 100–140 HB | -54°C to +121°C | Precision CNC machining, exact 45° cone angle, micro-inch surface finish |
| SAE Flare Nut | Extruded Brass / Forged Brass | SAE J512 / SAE J513 / ASTM B16 | Cu: 58.0–61.0%, Zn: Rem. | Tensile ≥ 380 MPa | -54°C to +121°C | Short and long skirt options, internal 45° beveled shoulder for tube support |
| Tubing Interface | Flared Copper / Brass Tube | ASTM B88 / ASTM B280 / ASTM B135 | Cu ≥ 99.9% (DHP) | Soft Annealed Temper | -54°C to +121°C | 100% metal-to-metal seal, zero elastomeric degradation in refrigerants/LPG |
Brass Flare Female Connector fittings find deployment across demanding thermal, fluid, and gas piping circuits:
Adapts male NPT pressure transmitters and sensing gauges directly into copper refrigerant monitoring lines.
Connects refrigeration expansion and solenoid valves with male pipe threads to standard flared tubing.
Bridges copper fuel distribution tubing to male pipe fittings on industrial gas furnaces and burners.
Provides reliable connection between flared return lines and male pipe reservoir ports on compact power units.
Couples flared copper heat dissipation coils to compressor cylinder male NPT discharge outlets.
Enables high-density transition from rigid male pipe bulkheads to flexible flared instrumentation loops.
Used for CO2 and syrup gas pressurization lines requiring non-reactive, clean-flow brass adapters.
Connects flared copper-nickel piping to marine water pump threaded male discharge ports.
Pioneer Industries’ Brass Flare Female Connector are widely used in numerous industries like:
Expert engineering insights and technical guidance regarding design specifications, pressure tolerances, flare cone sealing mechanics, tubing compatibility, and installation best practices for industrial Brass Flare Female Connector.
A Brass Flare Female Connector serves as an industrial piping transition fitting. It features a 45° SAE male flare nose on one end and an internal female tapered pipe thread (NPT or BSPT) on the other. It allows technicians to connect 45° flared copper or brass tubing to male pipe-threaded equipment ports such as pressure switches, regulators, valves, and manifold headers.
The two ends seal using entirely distinct engineering principles. The flare end seals purely mechanically: tightening the flare nut drives the 45° flared copper tube against the connector 45° cone, yielding a metal-to-metal wedge seal that requires zero sealant. The female pipe thread end seals along the thread flanks via tapered thread interference (NPT/BSPT), which requires a quality anaerobic thread sealant or PTFE tape to lubricate and plug micro-gaps.
Yes. The 45° flare connection can be loosened and reassembled multiple times without compromising seal performance, provided the flare cone is not scratched and the copper tube flare is not over-torqued. The female NPT end can also be disconnected, although reapplication of fresh thread sealant is required upon each reassembly.
Pioneer Industries manufactures Brass Flare Female Connectors in strict accordance with SAE J512, SAE J513, and ASME B16.26 for the 45° flare UNF straight threads. The female pipe threads are cut to ANSI/ASME B1.20.1 (NPT) or ISO 7-1 (BSPT), ensuring universal interchangeability with standard industrial piping.
Working pressure ratings range from 2,500 PSI (172 bar) for large 5/8" and 3/4" sizes up to 4,500 PSI (310 bar) for 1/4" sizes. All fittings are engineered with a minimum 4:1 design factor exceeding published working pressures.
Standard flare connections perform well under moderate vibration. For severe high-vibration environments, such as diesel engine fuel lines or heavy reciprocating compressors, Pioneer Industries recommends pairing this connector with a Long Union Nut, which features an extended sleeve to damp vibrational stress on the tube flare.
We manufacture these connectors from premium BS 249 / CW614N (ASTM B16 C36000) extruded bar stock or BS 218 / CW617N (ASTM B283 C37700) hot-forged brass blanks, providing high tensile strength (400 to 440 MPa) and superior corrosion resistance.
Yes. Pioneer Industries’ Brass Flare Female Connectors are fully rated for high-pressure synthetic refrigerants including R-410A, R-32, R-134a, R-404A, and R-407C, capable of handling operating pressures and superheated vapor temperatures easily.
Brass has natural lubricity and rarely galls against brass or steel pipe. However, to guarantee smooth torquing and prevent overtightening stress cracks, use an approved anaerobic PTFE paste sealant and avoid exceeding 2 to 3 turns past finger-tight (T.P.F.T.).
Yes. While NPT is the standard female configuration, Pioneer Industries readily machines female BSPP (G thread with sealing shoulder) and metric parallel threads upon customer specification.
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