Pioneer Industries is a premier manufacturer and exporter of heavy-duty Brass Flare Male Run Tees, engineered with an in-line 45° flare port and male NPT pipe thread on the straight run, plus a perpendicular 90-degree 45° flare branch for refrigeration, HVAC, and pneumatic piping assemblies.
The Brass Flare Male Run Tee manufactured by Pioneer Industries is an essential three-way piping adapter engineered for complex fluid routing in tight machinery footprints. Configured with a straight-through run comprising one 45° SAE male flare connection and one tapered male national pipe thread (NPT), and a perpendicular 90-degree branch featuring a second 45° SAE male flare connection, this fitting allows engineers to connect an in-line equipment port while simultaneously taking off a perpendicular flared tubing branch.
Manufactured strictly to SAE J512, SAE J513, and ASME B16.26 standards, each male run tee is hot-forged from BS 218 / CW617N brass alloy. The hot forging process refines the metallic grain structure along the junction, eliminating internal porosities and imparting superior resistance to bursting pressure, mechanical shock, and thermal expansion cycles common to refrigeration, HVAC, and hydraulic circuits.
Pioneer Industries exports Brass Flare Male Run Tees to leading industrial refrigeration contractors, marine fabricators, chiller OEMs, and oil and gas operators across more than 85 countries worldwide. With massive inventory stocks in Mumbai, India, we provide rapid international dispatch on standard fractional inch and metric configurations.
Every fitting is precision-machined on multi-axis CNC lathes under an ISO 9001:2015 certified quality system. Thread profiles and 45° flare cones are 100% inspected using calibrated optical comparators. All shipments are supplied with EN 10204 Type 3.1 material test certificates and pressure test verification reports.
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Pioneer Industries’ Brass Flare Male Run Tee solves piping dilemmas where a line must enter a female-threaded port on a valve, pump, or vessel while continuing onward or branching off at 90 degrees with flared copper tubing. By combining a male pipe nipple and a tee into a single one-piece forged component, it eliminates potential leak paths, reduces assembly labor, and creates a much stiffer piping assembly.
The forged body features heavy-duty hex wrench pads at the intersection, allowing mechanics to hold the fitting rigidly when torquing the male pipe thread into the equipment port, and counter-holding when tightening the two flare nuts. The metal-to-metal 45° flare seats provide reliable leak-tight operation across temperatures from -54°C to +121°C without elastomeric O-rings.
Pioneer Industries manufactures Brass Flare Male Run Tees in sizes from 1/8" to 3/4" tube OD with 1/8" to 3/4" male NPT pipe threads. Working pressures up to 4,000 PSI (276 bar). Conforms to SAE J512, SAE J513, ASME B16.26, and BS 218 standards.
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) | Straight Flare (UNF) | Male NPT Run (P) | Center-to-Flare (A) | Center-to-Pipe (B) | Wrench Flat (W) | Working Pressure |
|---|---|---|---|---|---|---|---|
| PI-FMRT-0402 | 1/4" | 7/16-20 UNF | 1/8" NPT | 0.88" | 0.75" | 9/16" | 4,000 PSI |
| PI-FMRT-0404 | 1/4" | 7/16-20 UNF | 1/4" NPT | 0.94" | 0.88" | 9/16" | 4,000 PSI |
| PI-FMRT-0504 | 5/16" | 1/2-20 UNF | 1/4" NPT | 1.00" | 0.94" | 5/8" | 3,800 PSI |
| PI-FMRT-0604 | 3/8" | 5/8-18 UNF | 1/4" NPT | 1.06" | 0.94" | 3/4" | 3,500 PSI |
| PI-FMRT-0606 | 3/8" | 5/8-18 UNF | 3/8" NPT | 1.12" | 1.06" | 3/4" | 3,500 PSI |
| PI-FMRT-0806 | 1/2" | 3/4-16 UNF | 3/8" NPT | 1.25" | 1.12" | 7/8" | 3,000 PSI |
| PI-FMRT-0808 | 1/2" | 3/4-16 UNF | 1/2" NPT | 1.38" | 1.31" | 7/8" | 3,000 PSI |
| PI-FMRT-1008 | 5/8" | 7/8-14 UNF | 1/2" NPT | 1.44" | 1.38" | 1-1/16" | 2,500 PSI |
| Part No. | Tube O.D. (mm) | Thread Profile (UNF) | Male Run (NPT) | Center-to-Flare (mm) | Center-to-Pipe (mm) | Wrench Flat (mm) | Working Pressure (bar) |
|---|---|---|---|---|---|---|---|
| PI-FMRT-M0602 | 6 mm | 7/16-20 UNF | 1/8" NPT | 22.4 mm | 19.0 mm | 14 mm | 276 bar |
| PI-FMRT-M0604 | 6 mm | 7/16-20 UNF | 1/4" NPT | 23.8 mm | 22.4 mm | 14 mm | 276 bar |
| PI-FMRT-M0804 | 8 mm | 1/2-20 UNF | 1/4" NPT | 25.4 mm | 23.8 mm | 16 mm | 262 bar |
| PI-FMRT-M1004 | 10 mm | 5/8-18 UNF | 1/4" NPT | 27.0 mm | 23.8 mm | 19 mm | 241 bar |
| PI-FMRT-M1006 | 10 mm | 5/8-18 UNF | 3/8" NPT | 28.5 mm | 27.0 mm | 19 mm | 241 bar |
| PI-FMRT-M1206 | 12 mm | 3/4-16 UNF | 3/8" NPT | 31.8 mm | 28.5 mm | 22 mm | 206 bar |
| PI-FMRT-M1208 | 12 mm | 3/4-16 UNF | 1/2" NPT | 35.0 mm | 33.3 mm | 22 mm | 206 bar |
| PI-FMRT-M1608 | 16 mm | 7/8-14 UNF | 1/2" NPT | 36.5 mm | 35.0 mm | 27 mm | 172 bar |
| Component | Material Specification | Standard Specification | Chemical Composition | Mechanical Properties | Temperature Limits | Key Features |
|---|---|---|---|---|---|---|
| Hot Forged Tee 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 |
| Male Pipe Thread Run | 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 Male Run Tee fittings find deployment across demanding thermal, fluid, and gas piping circuits:
Installs in-line on solenoid valve ports while providing a perpendicular service access or gauge branch.
Threads into vessel tapping while connecting straight-through and 90° copper refrigeration lines.
Connects gas cylinder headers into burner supply lines with a perpendicular pressure monitor line.
Directs supply air into pneumatic cylinder ports while feeding a secondary position sensor or exhaust line.
Mounts on compressor discharge manifolds with an offshoot branch to high-pressure cut-out switches.
Threads directly into pump manifold ports while allowing flared hydraulic lines to continue inline and branch.
Connects diesel injector return rails into fuel tank female return ports with an auxiliary sampling line.
Provides compact piping transitions on rooftop outdoor condenser coils and heat pump units.
Pioneer Industries’ Brass Flare Male Run Tee 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 Male Run Tee.
A Brass Flare Male Run Tee has one 45° SAE flare port and one male NPT pipe thread along the straight in-line "run", with a second 45° flare port on the 90-degree "branch". In contrast, a Male Branch Tee has two flare ports on the in-line run, with the male NPT thread located on the 90-degree branch.
Choose a Male Run Tee when you need to thread the fitting directly into a female-threaded equipment port while allowing a straight-line tube to connect to the opposite run, and simultaneously taking off a perpendicular 90° flared tube branch.
Apply an approved anaerobic PTFE paste sealant or gas-certified PTFE tape to the male NPT run threads. Tighten into the female port until the branch points in the desired direction, then torque the flare nuts onto the two flare ports without any sealant.
Working pressure ratings range from 2,500 PSI (172 bar) for 5/8" tube sizes up to 4,000 PSI (276 bar) for 1/4" tube sizes, engineered with an exhaustive 4:1 hydrostatic burst safety factor.
Yes. Pioneer Industries’ Male Run Tees are hot-forged with dense, heavy walls rated for continuous service in R-410A, R-32, R-404A, and R-134a refrigeration systems across -54°C to +121°C.
Hot forging aligns the crystalline grain flow around both the straight run and the 90-degree branch, eliminating structural weak points and porosity that could allow micro-leakage of pressurized refrigerant or fuel gases.
Recommended flare nut torques: 10–15 ft-lbs for 1/4" tube; 20–30 ft-lbs for 3/8" tube; 35–50 ft-lbs for 1/2" tube; and 50–65 ft-lbs for 5/8" tube. Always counter-hold the forged tee body with a wrench.
Yes. Pioneer Industries manufactures custom male run tees with British Standard Pipe Taper (BSPT) or metric male threads upon engineering specification.
The two flare ports are 100% reusable across multiple assemblies without loss of seal performance. The male NPT pipe thread can also be reused after cleaning and applying fresh thread sealant.
Every shipment includes EN 10204 Type 3.1 Mill Test Certificates verifying alloy chemistry, tensile strength, dimensional compliance, and 100% pneumatic bubble leak testing.
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