Designed for transitioning from instrumentation tubing into threaded pipe or male transmitter stems across enclosure partitions, Pioneer Industries Brass Double Ferrule Bulkhead Female Connectors provide rigid panel clamping and leak-tight swaging up to 5,000 PSI.
The Brass Double Ferrule Bulkhead Female Connector bridges process instrumentation tubing directly to threaded male sensors, valves, or pipe conduits across enclosure walls. It integrates an external threaded bulkhead barrel with jam nuts on one end, a female NPT or BSPP thread on the reverse, and a twin-ferrule compression tube socket.
This configuration eliminates the need for separate bulkhead unions and female adapters, drastically reducing the physical footprint and eliminating intermediate leak points within control panel layouts.
Exported globally from Mumbai, Pioneer Industries Bulkhead Female Connectors meet exacting ASME B31.3 and ISO 19879 process piping benchmarks.
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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CNC-machined from extruded brass bar stock, each connector features precision-cut female taper pipe threads (ASME B1.20.1 NPT) and micro-honed twin-ferrule receiving tapers.
Designed to support panel thicknesses up to 12.7 mm, it delivers unmatched mechanical stability under cyclic vibration and hydraulic shock.
Metric tubing sizes 3 mm to 25 mm OD (MPBFC Series) and fractional sizes 1/8" to 1" OD (IPBFC Series) with female NPT/BSPP 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. | Tube O.D. T mm | P (NPT) | E mm | h mm | h 1 mm | H mm | F | l | l 1 | L | L 1 | Panel Hole DrillSize | Max Panel Thickness | Working Pressure |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MPBFC-06-02 | 6 | 1/8 | 4.8 | 15.8 | 15.8 | 14 | 15.3 | 39.6 | 27.7 | 46.90 | 35 | 11.5 | 10.2 | 5,000 PSI / 345 Bar |
| MPBFC-06-04 | 6 | 1/4 | 4.8 | 19.0 | 16.0 | 14 | 15.3 | 44.4 | 26.2 | 51.80 | 33.6 | 11.5 | 10.2 | 5,000 PSI / 345 Bar |
| MPBFC-08-04 | 8 | 1/4 | 6.3 | 19.0 | 17.4 | 16 | 16.2 | 46.7 | 28.4 | 53.85 | 35.55 | 13.1 | 11.2 | 5,000 PSI / 345 Bar |
| MPBFC-12-08 | 12 | 1/2 | 9.5 | 27.0 | 24.0 | 22 | 22.8 | 55.4 | 31.8 | 66.50 | 41.9 | 19.5 | 12.7 | 5,000 PSI / 345 Bar |
| Part No. | Tube O.D. T in | P (NPT) | E Min | h in | h 1 in | H in | F | l | l 1 | L | L 1 | Panel Hole DrillSize | Max Panel Thickness | Working Pressure |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| IPBFC-02-02 | 1/8 | 1/8 | 2.28 | 9/16 | 1/2 | 7/16 | 12.70 | 38.10 | 24.63 | 44.70 | 31.24 | 8.33 | 12.70 | 5,000 PSI / 345 Bar |
| IPBFC-04-02 | 1/4 | 1/8 | 4.82 | 5/8 | 9/16 | 9/16 | 15.24 | 39.62 | 26.16 | 46.99 | 33.52 | 11.50 | 10.16 | 5,000 PSI / 345 Bar |
| IPBFC-04-04 | 1/4 | 1/4 | 4.82 | 3/4 | 5/8 | 9/16 | 15.24 | 44.45 | 26.16 | 51.81 | 33.52 | 11.50 | 10.16 | 5,000 PSI / 345 Bar |
| IPBFC-06-04 | 3/8 | 1/4 | 7.11 | 3/4 | 3/4 | 11/16 | 16.76 | 47.75 | 29.46 | 55.11 | 36.83 | 14.68 | 11.17 | 5,000 PSI / 345 Bar |
| IPBFC-08-06 | 1/2 | 3/8 | 10.41 | 15/16 | 15/16 | 7/8 | 22.86 | 51.56 | 31.75 | 61.72 | 41.91 | 19.44 | 12.70 | 5,000 PSI / 345 Bar |
| IPBFC-08-08 | 1/2 | 1/2 | 10.41 | 1-1/16 | 15/16 | 7/8 | 22.86 | 56.38 | 31.75 | 66.54 | 41.91 | 19.44 | 12.70 | 5,000 PSI / 345 Bar |
| IPBFC-12-12 | 3/4 | 3/4 | 15.74 | 1-1/4 | 1-3/16 | 1-1/8 | 24.38 | 63.60 | 38.80 | 75.51 | 47.21 | 25.79 | 16.76 | 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 Bulkhead 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 Bulkhead Female Connector components are deployed across demanding industrial instrumentation, process lines, and pneumatic circuits, including:
Connecting external tubing directly to panel-mounted male-threaded pressure indicators.
Direct coupling of impulse lines through instrument enclosure partitions.
Pass-through interface between exterior airlines and internal threaded manifold ports.
Threaded gas chromatograph sample connection through analyzer cabinet bulkheads.
Lube oil and fuel pressure line transitions through shipboard console plates.
Connecting tubing lines directly to female-threaded panel-mounted dosing valves.
Transitioning capillary temperature lines into threaded bulkhead ports.
Mounting male-threaded calibration standards onto operator control consoles.
Pioneer Industries’ Brass Double Ferrule Bulkhead 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 Bulkhead Female Connector.
A Brass Double Ferrule Bulkhead Female Connector provides a rigid panel pass-through connection that transitions directly from an instrumentation tube into a female threaded pipe port (NPT or BSPP). It allows male-threaded gauges, valves, or pipe stems mounted inside or outside an enclosure to connect directly to tubing without extra fittings.
Pioneer Industries manufactures female ports in National Pipe Taper (NPT per ASME B1.20.1), British Standard Pipe Parallel (BSPP / G per ISO 228), and British Standard Pipe Taper (BSPT / R per ISO 7). Thread sizes range from 1/8″ to 1″.
By combining a bulkhead pass-through union with a female pipe adapter in a single unified body, it reduces total assembly length by up to 40%, cuts potential leak paths in half, and simplifies maintenance.
Rated up to 5,000 PSI (345 Bar) for 1/8″ to 1/4″ sizes, and up to 3,000 PSI for larger female NPT sizes, backed by a 4:1 design factor of safety per ASME B31.3.
Manufactured from extruded brass bar stock conforming to ASTM B16 C36000, IS 319 Grade 1, and EN 12164 CW614N, ensuring superior tensile strength, machinability, and corrosion resistance.
Yes. With maximum panel clearance up to 12.7 mm (1/2″), it securely mounts through sheet metal cabinets, aluminum instrument plates, and thick carbon steel partitions.
For NPT and BSPT taper pipe threads, an approved PTFE thread sealant or anaerobic pipe paste is recommended on the mating male thread to achieve a pressure-tight seal. The twin-ferrule tube connection requires no sealant.
Bottom the tube squarely inside the fitting socket, finger-tighten the nut, and tighten 1-1/4 turns with an open-end wrench (3/4 turn for sub-miniature sizes under 1/4″).
Yes. Pioneer double ferrule connectors maintain vacuum integrity down to 1 × 10⁻⁹ mbar·l/s for helium leak testing.
EN 10204 Type 3.1 inspection certificates, hydrostatic test reports, dimensional inspection records, and RoHS/REACH compliance letters.
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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.
