Engineered for direct straight connection from instrumentation tubing to male-threaded valves, pipe nipples, and instruments, Pioneer Industries Brass Double Ferrule Female Connectors provide leak-tight sealing and vibration damping up to 5,000 PSI.
The Brass Double Ferrule Female Connector provides a straight transition from a twin-ferrule compression tube socket to a female NPT, BSPT, or BSPP threaded port. It is among the most widely specified instrumentation fittings in process plants, allowing tubing to connect directly to male-threaded pipe fittings, gauges, valves, and manifold ports.
Pioneer Female Connectors feature precision-honed internal 20-degree camming angles and CNC-cut female pipe threads. When tightened, the front ferrule creates an impenetrable seal against the body taper, while the back ferrule grips the tube OD to isolate vibration.
Manufactured by Pioneer Industries Mumbai, these female connectors are exported globally to automation OEMs, analytical system builders, and petrochemical refineries in over 85 countries.
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 premium extruded brass bar stock (ASTM B16 / CW614N / IS 319), each connector delivers exceptional corrosion resistance and mechanical integrity.
The hex body provides ample flat wrenching surfaces for easy installation and maintenance even in compact piping arrays.
Metric tubing sizes 2 mm to 25 mm OD (MPFC Series) and fractional sizes 1/16" to 1" OD (IPFC Series) with female threads from 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. | MTube O.D. T mm | P (NPT) | E mm | h mm | H mm | F | G | l | L | Working Pressure |
|---|---|---|---|---|---|---|---|---|---|---|
| MPFC-03-02 | 3 | 1/8 | 2.4 | 14 | 12 | 12.9 | 15.3 | 22.1 | 28.7 | 5,000 PSI / 345 Bar |
| MPFC-03-04 | 3 | 1/4 | 2.4 | 19 | 12 | 12.9 | 15.3 | 26.9 | 33.5 | 5,000 PSI / 345 Bar |
| MPFC-04-02 | 4 | 1/8 | 2.4 | 14 | 12 | 13.7 | 16.1 | 23.1 | 29.7 | 5,000 PSI / 345 Bar |
| MPFC-06-02 | 6 | 1/8 | 4.8 | 14 | 14 | 15.3 | 17.7 | 23.9 | 31.3 | 5,000 PSI / 345 Bar |
| MPFC-06-04 | 6 | 1/4 | 4.8 | 19 | 14 | 15.3 | 17.7 | 28.4 | 35.8 | 5,000 PSI / 345 Bar |
| MPFC-06-06 | 6 | 3/8 | 4.8 | 22 | 14 | 15.3 | 17.7 | 29.5 | 36.9 | 5,000 PSI / 345 Bar |
| MPFC-06-08 | 6 | 1/2 | 4.8 | 27 | 14 | 15.3 | 17.7 | 35.1 | 42.5 | 5,000 PSI / 345 Bar |
| MPFC-08-02 | 8 | 1/8 | 6.4 | 15 | 16 | 16.2 | 18.6 | 24.6 | 32.1 | 5,000 PSI / 345 Bar |
| MPFC-08-04 | 8 | 1/4 | 6.4 | 19 | 16 | 16.2 | 18.6 | 29.5 | 37.0 | 5,000 PSI / 345 Bar |
| MPFC-08-06 | 8 | 3/8 | 6.4 | 22 | 16 | 16.2 | 18.6 | 30.2 | 37.7 | 5,000 PSI / 345 Bar |
| MPFC-08-08 | 8 | 1/2 | 6.4 | 27 | 16 | 16.2 | 19.5 | 35.8 | 43.3 | 5,000 PSI / 345 Bar |
| MPFC-10-02 | 10 | 1/8 | 7.9 | 18 | 19 | 17.2 | 19.5 | 25.4 | 33.0 | 5,000 PSI / 345 Bar |
| MPFC-10-04 | 10 | 1/4 | 7.9 | 19 | 19 | 17.2 | 19.5 | 30.2 | 37.8 | 5,000 PSI / 345 Bar |
| MPFC-10-06 | 10 | 3/8 | 7.9 | 22 | 19 | 17.2 | 19.5 | 31.0 | 38.6 | 5,000 PSI / 345 Bar |
| MPFC-10-08 | 10 | 1/2 | 7.9 | 27 | 19 | 17.2 | 22.0 | 36.6 | 44.2 | 5,000 PSI / 345 Bar |
| MPFC-12-02 | 12 | 1/8 | 8.3 | 22 | 22 | 22.8 | 22.0 | 28.4 | 38.5 | 5,000 PSI / 345 Bar |
| MPFC-12-04 | 12 | 1/4 | 9.5 | 22 | 22 | 22.8 | 22.0 | 30.2 | 40.3 | 5,000 PSI / 345 Bar |
| MPFC-12-06 | 12 | 3/8 | 9.5 | 22 | 22 | 22.8 | 22.0 | 31.0 | 41.1 | 5,000 PSI / 345 Bar |
| MPFC-12-08 | 12 | 1/2 | 9.5 | 27 | 22 | 22.8 | 22.0 | 36.6 | 46.7 | 5,000 PSI / 345 Bar |
| MPFC-12-12 | 12 | 3/4 | 9.5 | 35 | 22 | 22.8 | 22.0 | 38.9 | 49.0 | 5,000 PSI / 345 Bar |
| MPFC-15-08 | 15 | 1/2 | 11.9 | 27 | 25 | 24.4 | 22.0 | 36.6 | 46.7 | 5,000 PSI / 345 Bar |
| MPFC-16-08 | 16 | 1/2 | 12.7 | 27 | 25 | 24.4 | 22.0 | 36.8 | 46.9 | 5,000 PSI / 345 Bar |
| MPFC-20-08 | 20 | 1/2 | 15.9 | 30 | 32 | 26.0 | 22.0 | 37.8 | 47.9 | 5,000 PSI / 345 Bar |
| MPFC-20-12 | 20 | 3/4 | 15.9 | 35 | 32 | 26.0 | 22.0 | 39.6 | 49.7 | 5,000 PSI / 345 Bar |
| MPFC-22-12 | 22 | 3/4 | 18.3 | 35 | 32 | 26.0 | 22.0 | 39.6 | 49.7 | 5,000 PSI / 345 Bar |
| MPFC-22-16 | 22 | 1 | 18.3 | 41 | 32 | 26.0 | 22.0 | 47.8 | 57.9 | 5,000 PSI / 345 Bar |
| MPFC-25-12 | 25 | 3/4 | 21.8 | 35 | 38 | 31.3 | 26.5 | 41.1 | 53.4 | 5,000 PSI / 345 Bar |
| MPFC-25-16 | 25 | 1 | 21.8 | 41 | 38 | 31.3 | 26.5 | 50.0 | 62.3 | 5,000 PSI / 345 Bar |
| Part No. | Tube O.D. T in | P (NPT) | E Min | h in | H in | F | G | l | L | Working Pressure |
|---|---|---|---|---|---|---|---|---|---|---|
| IPFC-02-02 | 1/8 | 1/8 | 2.28 | 9/16 | 7/16 | 12.70 | 15.24 | 22.09 | 28.70 | 5,000 PSI / 345 Bar |
| IPFC-02-04 | 1/8 | 1/4 | 2.28 | 3/4 | 7/16 | 12.70 | 15.24 | 26.92 | 33.52 | 5,000 PSI / 345 Bar |
| IPFC-03-02 | 3/16 | 1/8 | 3.04 | 9/16 | 1/2 | 13.71 | 16.00 | 23.11 | 29.71 | 5,000 PSI / 345 Bar |
| IPFC-04-02 | 1/4 | 1/8 | 4.82 | 9/16 | 9/16 | 15.24 | 17.78 | 23.87 | 31.24 | 5,000 PSI / 345 Bar |
| IPFC-04-04 | 1/4 | 1/4 | 4.82 | 3/4 | 9/16 | 15.24 | 17.78 | 28.44 | 35.81 | 5,000 PSI / 345 Bar |
| IPFC-04-06 | 1/4 | 3/8 | 4.82 | 7/8 | 9/16 | 15.24 | 17.78 | 30.22 | 37.59 | 5,000 PSI / 345 Bar |
| IPFC-04-08 | 1/4 | 1/2 | 4.82 | 1-1/16 | 9/16 | 15.24 | 17.78 | 35.05 | 42.41 | 5,000 PSI / 345 Bar |
| IPFC-05-02 | 5/16 | 1/8 | 6.35 | 9/16 | 5/8 | 16.25 | 17.78 | 24.63 | 32.00 | 5,000 PSI / 345 Bar |
| IPFC-05-04 | 5/16 | 1/4 | 6.35 | 3/4 | 5/8 | 16.25 | 18.54 | 29.46 | 36.83 | 5,000 PSI / 345 Bar |
| IPFC-06-02 | 3/8 | 1/8 | 7.11 | 5/8 | 11/16 | 16.76 | 18.54 | 25.40 | 32.76 | 5,000 PSI / 345 Bar |
| IPFC-06-04 | 3/8 | 1/4 | 7.11 | 3/4 | 11/16 | 16.76 | 19.30 | 30.22 | 37.59 | 5,000 PSI / 345 Bar |
| IPFC-06-06 | 3/8 | 3/8 | 7.11 | 7/8 | 11/16 | 16.76 | 19.30 | 31.75 | 39.11 | 5,000 PSI / 345 Bar |
| IPFC-06-08 | 3/8 | 1/2 | 7.11 | 1-1/16 | 11/16 | 16.76 | 19.30 | 36.57 | 43.94 | 5,000 PSI / 345 Bar |
| IPFC-06-12 | 3/8 | 3/4 | 7.11 | 1-5/16 | 11/16 | 22.86 | 19.30 | 40.38 | 47.75 | 5,000 PSI / 345 Bar |
| IPFC-08-04 | 1/2 | 1/4 | 10.41 | 1-3/16 | 7/8 | 22.86 | 19.30 | 30.22 | 40.38 | 5,000 PSI / 345 Bar |
| IPFC-08-06 | 1/2 | 3/8 | 10.41 | 7/8 | 7/8 | 22.86 | 21.84 | 31.75 | 41.91 | 5,000 PSI / 345 Bar |
| IPFC-08-08 | 1/2 | 1/2 | 10.41 | 1-1/16 | 7/8 | 22.86 | 21.84 | 36.57 | 46.73 | 5,000 PSI / 345 Bar |
| IPFC-08-12 | 1/2 | 3/4 | 10.41 | 1-5/16 | 7/8 | 24.38 | 21.84 | 38.10 | 48.26 | 5,000 PSI / 345 Bar |
| IPFC-10-06 | 5/8 | 3/8 | 12.70 | 15/16 | 1 | 24.38 | 21.84 | 31.75 | 41.91 | 5,000 PSI / 345 Bar |
| IPFC-10-08 | 5/8 | 1/2 | 12.70 | 1-1/16 | 1 | 24.38 | 21.84 | 36.57 | 46.73 | 5,000 PSI / 345 Bar |
| IPFC-12-08 | 3/4 | 1/2 | 15.74 | 1-1/16 | 1-1/8 | 24.38 | 21.84 | 36.57 | 46.73 | 5,000 PSI / 345 Bar |
| IPFC-12-12 | 3/4 | 3/4 | 15.74 | 1-5/16 | 1-1/8 | 24.38 | 21.84 | 38.10 | 48.26 | 5,000 PSI / 345 Bar |
| IPFC-14-12 | 7/8 | 3/4 | 18.28 | 1-5/16 | 1-1/4 | 25.90 | 21.84 | 39.62 | 49.78 | 5,000 PSI / 345 Bar |
| IPFC-16-12 | 1 | 3/4 | 22.35 | 1-3/8 | 1-1/2 | 31.24 | 26.41 | 41.14 | 53.24 | 5,000 PSI / 345 Bar |
| IPFC-16-16 | 1 | 1 | 22.35 | 1-5/8 | 1-1/2 | 31.24 | 26.41 | 50.03 | 62.23 | 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 Connector 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 Connector components are deployed across demanding industrial instrumentation, process lines, and pneumatic circuits, including:
Connecting male-threaded pressure gauges directly to instrumentation tubing lines.
Transitioning tubing lines into male-threaded valve ports on control racks.
Connecting airlines to male pipe stubs on distribution headers.
Connecting tubing to male sampling probes on process pipes.
Reliable vibration-resistant connections on marine diesel engine controls.
Connecting pressure switches and sensors to compressor piping.
Direct coupling to male metering pump discharge ports.
Hooking reference gauges to tubing lines on test stands.
Pioneer Industries’ Brass Double Ferrule Female Connector 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 Connector.
A Brass Double Ferrule Female Connector is a straight fitting featuring a twin-ferrule compression tube socket on one end and a female pipe threaded port (NPT, BSPP, or BSPT) on the other, designed to connect tubing directly to a male pipe thread.
Pioneer manufactures female ports in NPT (ASME B1.20.1), BSPP (ISO 228), and BSPT (ISO 7) in sizes from 1/8″ to 1″ nominal.
Pressures range up to 5,000 PSI (345 Bar) for sizes 1/16″ to 1/4″ and up to 3,200 PSI for 1/2″ size, with a 4:1 safety factor under ASME B31.3.
Manufactured from extruded brass bar stock conforming to ASTM B16 Alloy C36000, IS 319 Grade 1, and EN 12164 CW614N.
Screw the female port onto the male pipe thread using approved PTFE sealant. Then insert the tube squarely into the ferrule socket, finger-tighten the nut, and wrench-tighten 1-1/4 turns.
Yes. The compression joint can be disassembled and remade repeatedly by tightening the nut approx. 1/12 to 1/6 turn past snug.
Yes. Fully compatible with seamless copper (ASTM B75/B88) and brass (ASTM B135). For plastic tubes, brass tube inserts are required.
Yes, certified helium leak tight (< 1 × 10⁻⁹ mbar·l/s) and suitable for vacuum lines down to -750 mmHg.
-200°C to +200°C (-328°F to +392°F) continuous operating envelope.
EN 10204 Type 3.1 Material Test Certificates, dimensional inspection reports, and RoHS compliance certificates.
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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.
