Designed to adapt double ferrule tube fitting ports into female NPT or BSPP threaded connections, Pioneer Industries Brass Double Ferrule Female Adapters eliminate alignment issues and reduce installation space up to 5,000 PSI.
The Brass Double Ferrule Female Adapter consists of a precision-machined smooth tube stub on one end and a female NPT, BSPP, or BSPT threaded port on the other. It is inserted directly into any standard twin-ferrule fitting port (such as a tee, elbow, or valve) to provide a female pipe connection.
Using an adapter stub rather than a standard pipe nipple allows 360-degree rotational alignment before tightening the compression nut. This completely eliminates alignment stress on pipe threads and drastically simplifies complex piping hookups.
Manufactured by Pioneer Industries Mumbai, our Brass Female Adapters are exported globally to instrument panel builders, power generation plants, and HVAC manufacturers.
Components are precision CNC-machined from premium extruded brass (IS 319 / ASTM B16 / CW614N) with micro-smooth surface finishes. Every production lot undergoes rigorous metallurgical spectrometry, optical CMM dimensional checks, and helium leak detection, accompanied by authentic EN 10204 Type 3.1 Mill Test Certificates.
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Machined from solid extruded brass (ASTM B16 / CW614N), each adapter features a precision-sized tube stub that swages seamlessly into Pioneer, Swagelok, or Parker fitting bodies.
The female threaded port features clean, burr-free internal threads according to ASME B1.20.1 NPT or ISO 228 BSPP.
Metric sizes 3mm to 25mm tube stub OD (MPFA Series) and fractional sizes 1/8" to 1" tube stub OD (IPFA Series) with female NPT/BSP threads 1/8" to 1".
Explore comprehensive engineering dimensional configurations for Metric Series and Fractional Series, Operating Parameters, and Certified Metallurgy. Manufactured according to ASME B31.3, ISO 19879, and international instrumentation standards.
| Part No. | Tube O.D. T mm | P (NPT) | E | h mm | l | L | Working Pressure |
|---|---|---|---|---|---|---|---|
| MPFA-03-02 | 3 | 1/8 | 1.8 | 14 | 13.15 | 31.15 | 5,000 PSI / 345 Bar |
| MPFA-06-02 | 6 | 1/8 | 4.6 | 14 | 15.75 | 32.5 | 5,000 PSI / 345 Bar |
| MPFA-06-04 | 6 | 1/4 | 4.6 | 19 | 15.75 | 37.1 | 5,000 PSI / 345 Bar |
| MPFA-08-04 | 8 | 1/4 | 6.3 | 19 | 16.50 | 37.6 | 5,000 PSI / 345 Bar |
| MPFA-10-04 | 10 | 1/4 | 7.7 | 19 | 17.50 | 38.1 | 5,000 PSI / 345 Bar |
| MPFA-10-06 | 10 | 3/8 | 7.7 | 22 | 17.50 | 40.1 | 5,000 PSI / 345 Bar |
| MPFA-10-08 | 10 | 1/2 | 7.7 | 27 | 17.50 | 46.5 | 5,000 PSI / 345 Bar |
| MPFA-12-04 | 12 | 1/4 | 9.1 | 19 | 23.50 | 43.7 | 5,000 PSI / 345 Bar |
| MPFA-12-06 | 12 | 3/8 | 9.1 | 22 | 23.50 | 46.0 | 5,000 PSI / 345 Bar |
| MPFA-12-08 | 12 | 1/2 | 9.1 | 27 | 23.50 | 52.3 | 5,000 PSI / 345 Bar |
| MPFA-18-12 | 18 | 3/4 | 13.9 | 32 | 24.90 | 54.8 | 5,000 PSI / 345 Bar |
| – | mmHg | inHg | in | ft. | atm | lb/in | l¸/l² | KPa | BAR | Working Pressure |
|---|---|---|---|---|---|---|---|---|---|---|
| mmHg | 1. | .03937 | .5353 | .04461 | .00132 | .01934 | .00136 | .1333 | .0013 | 5,000 PSI / 345 Bar |
| inHg | 25.40 | 1. | 13.60 | 1.133 | .03342 | .4912 | .03453 | 3.387 | .0339 | 5,000 PSI / 345 Bar |
| in | 1.868 | .07355 | 1. | .08333 | .00246 | .03612 | .00254 | .2490 | .0025 | 5,000 PSI / 345 Bar |
| ft. | 22.42 | .8826 | 12. | 1. | .02950 | .4334 | .3048 | 2.988 | .0299 | 5,000 PSI / 345 Bar |
| atm | 760 | 29.92 | 406.8 | 33.90 | 1. | 14.70 | 1.033 | 101.3 | 1.013 | 5,000 PSI / 345 Bar |
| lb/in | 51.71 | 2.036 | 27.69 | 2.307 | .06805 | 1. | .07031 | 6.895 | .0689 | 5,000 PSI / 345 Bar |
| l¸/l² | 735.6 | 28.96 | 397.3 | 32.81 | .9678 | 14.22 | 1. | 98.05 | .981 | 5,000 PSI / 345 Bar |
| kPa | 7.50 | .2953 | 4.016 | .3347 | .00987 | .1451 | .0102 | 1. | .01 | 5,000 PSI / 345 Bar |
| Bar | 750. | 29.53 | 401.6 | 33.47 | .987 | 14.51 | 1.02 | 100. | 1. | 5,000 PSI / 345 Bar |
| Operating Parameter | Standard Specification | Severe Service / High-Pressure Rating |
|---|---|---|
| Fluid Media Compatibility | Compressed Air, Mineral Oils, Hydraulic Fluids, Inert Gases | Natural Gas, Vacuum lines, Steam & Glycol circuits |
| Working Pressure Range | Vacuum to 5,000 PSI (345 Bar) depending on tube size | Proof pressure tested to 1.5× design working pressure |
| Helium Leak Integrity | < 1 × 10⁻⁹ mbar·l/s | Suitable for ultra-clean analytical & vacuum systems |
| Temperature Envelope | -200°C to +200°C (-328°F to +392°F) | Cryogenic to moderate steam and hot oil service |
| Turns From Finger-Tight | 1-1/4 Turns (sizes 1/4" to 1" / 6mm to 25mm) | 3/4 Turn (sizes 1/16" to 3/16" / 2mm to 4mm) |
| Compatible Tubing | Seamless Copper (ASTM B75, B88), Brass (ASTM B135) | Nylon, PU, PTFE (with Pioneer brass tube inserts) |
Pioneer Industries manufactures Brass Double Ferrule Female Adapter using high-tensile extruded brass bar stock and forgings with controlled microstructural annealing:
| Component / Grade | Material Standard | Composition / Chemistry |
|---|---|---|
| Fitting Body / Bar | ASTM B16 / IS 319 Gr. 1 / CW614N | Cu: 60.0–63.0%, Pb: 2.5–3.7%, Fe: 0.35% Max, Zn: Balance |
| Forged Elbows / Tees | ASTM B283 / CW617N C37700 | Cu: 57.0–60.0%, Pb: 1.5–2.5%, Fe: 0.30% Max, Zn: Balance |
| Front & Back Ferrules | ASTM B16 / Cold-Worked Annealed | Controlled Alpha-Beta phase balance for clean collet swaging |
| Optional Naval Brass | ASTM B21 / CW712R C46400 | Cu: 59.0–62.0%, Sn: 0.5–1.0%, Pb: 0.20% Max, Zn: Balance |
Our manufacturing, swaging tolerances, and quality verification strictly adhere to international engineering benchmarks:
Brass Double Ferrule Female Adapter components are deployed across demanding industrial instrumentation, process lines, and pneumatic circuits, including:
Attaching male-threaded pressure gauges to tube fitting ports with exact dial orientation.
Converting tube ports on valves and manifold blocks into female pipe threads.
Adapting airline tube sockets to accept male-threaded filter elements or quick couplers.
Connecting male sensor probes into sampling tee ports.
Directing tube runs into male-threaded pressure switches on compressor skids.
Adapting male quick disconnect couplings to instrumentation tubing.
Connecting temperature sensing wells to copper or brass tubing lines.
Adapting sample tap valves to process tubing.
Pioneer Industries’ Brass Double Ferrule Female Adapter components are trusted across critical global industrial sectors:
Expert engineering insights and technical guidance regarding swaging mechanics, pressure thresholds, tubing compatibility, and installation protocols for Brass Double Ferrule Female Adapter.
A Brass Double Ferrule Female Adapter features a smooth machined tube stub on one end and a female threaded pipe port (NPT, BSPP, or BSPT) on the other. It inserts into any double ferrule fitting body to create a female pipe connection.
With standard threaded fittings, aligning a gauge dial often requires over-tightening or under-tightening the pipe thread. With an adapter, the male pipe thread is tightened first, and the tube stub can then be rotated 360 degrees in the fitting body before tightening the ferrule nut.
Metric Series MPFA covers 3mm to 25mm tube stubs with 1/8″ to 1″ female threads. Fractional Series IPFA covers 1/8″ to 1″ tube stubs with 1/8″ to 1″ female threads.
Supports working pressures up to 5,000 PSI (345 Bar) depending on tube stub and thread size, under ASME B31.3 specifications.
Machined from extruded brass bar stock conforming to ASTM B16 Alloy C36000 and IS 319 Grade 1.
Insert the tube stub fully into the fitting body until it bottoms against the internal shoulder, finger-tighten the nut, and tighten 1-1/4 turns with an open-end wrench.
PTFE tape or paste is required on the mating male pipe thread screwed into the female port. No sealant is used on the tube stub end.
Once swaged into a fitting body, the ferrules permanently attach to the adapter stub, allowing repeated disassembly and remake like any swaged tube.
Yes, certified helium leak tight (< 1 × 10⁻⁹ mbar·l/s) and suitable for vacuum lines down to -750 mmHg.
EN 10204 Type 3.1 Material Test Certificates, dimensional inspection reports, and RoHS declarations.
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Note: Please note that the information on this document is for illustration purposes only as information may vary with individual products, their grade and applications industries or uses and therefore cannot be guaranteed as accurate. © Copyright 2026 by Pioneer Industries. All Rights Reserved.
