Engineered to blank off unused ports in double ferrule manifolds, valves, and tees, Pioneer Industries Brass Double Ferrule Tube Plugs feature a solid machined shoulder that seats directly into the fitting body taper, providing a bubble-tight seal up to 5,000 PSI.
The Brass Double Ferrule Tube Plug blanks off an unoccupied double-ferrule compression port in fittings, manifolds, or valves. It consists of a solid, precision-machined brass plug featuring a cylindrical stem that bottoms into the fitting body and an engineered shoulder that engages the fitting nut.
Unlike conventional plugs that require ferrules, the Pioneer Tube Plug uses the existing fitting nut without ferrules (or with pre-existing ferrules), directly compressing into the body seating cone. This creates an immediate, bubble-tight seal up to 5,000 PSI that can be removed and re-plugged without component replacement.
Manufactured by Pioneer Industries Mumbai and specified by instrumentation engineers worldwide for isolating unused ports in manifolds, valves, and test benches.
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 ASTM B16 brass bar stock, each plug features an optical-grade sealing surface that seats flush against the fitting body cone without scratching internal tapers.
Because the plug body does not swage or permanently deform, it provides an indefinite service life across hundreds of installation and removal cycles.
Metric ports 3 mm to 25 mm (MTP Series) and fractional ports 1/8" to 1" (ITP Series).
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 | H mm | Working Pressure |
|---|---|---|---|
| MPTP-02 | 2 | 12 | 5,000 PSI / 345 Bar |
| MPTP-03 | 3 | 12 | 5,000 PSI / 345 Bar |
| MPTP-04 | 4 | 12 | 5,000 PSI / 345 Bar |
| MPTP-06 | 6 | 14 | 5,000 PSI / 345 Bar |
| MPTP-08 | 8 | 16 | 5,000 PSI / 345 Bar |
| MPTP-10 | 10 | 19 | 5,000 PSI / 345 Bar |
| MPTP-12 | 12 | 22 | 5,000 PSI / 345 Bar |
| MPTP-15 | 15 | 25 | 5,000 PSI / 345 Bar |
| MPTP-16 | 16 | 25 | 5,000 PSI / 345 Bar |
| MPTP-18 | 18 | 30 | 5,000 PSI / 345 Bar |
| MPTP-20 | 20 | 32 | 5,000 PSI / 345 Bar |
| MPTP-22 | 22 | 32 | 5,000 PSI / 345 Bar |
| MPTP-25 | 25 | 38 | 5,000 PSI / 345 Bar |
| Part No. | Tube O.D. T in | H in | Working Pressure |
|---|---|---|---|
| IPTP-02 | 1/8 | 7/16 | 5,000 PSI / 345 Bar |
| IPTP-03 | 3/16 | 1/2 | 5,000 PSI / 345 Bar |
| IPTP-04 | 1/4 | 9/16 | 5,000 PSI / 345 Bar |
| IPTP-05 | 5/16 | 5/8 | 5,000 PSI / 345 Bar |
| IPTP-06 | 3/8 | 11/16 | 5,000 PSI / 345 Bar |
| IPTP-08 | 1/2 | 7/8 | 5,000 PSI / 345 Bar |
| IPTP-10 | 5/8 | 1 | 5,000 PSI / 345 Bar |
| IPTP-12 | 3/4 | 1-1/8 | 5,000 PSI / 345 Bar |
| IPTP-14 | 7/8 | 1-1/4 | 5,000 PSI / 345 Bar |
| IPTP-16 | 1 | 1-1/2 | 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 Tube Plug 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 Tube Plug components are deployed across demanding industrial instrumentation, process lines, and pneumatic circuits, including:
Blanking off spare ports in 3-valve and 5-valve instrumentation manifolds.
Temporarily converting union tees into 90° elbows during piping reconfigurations.
Plugging open manifold or fitting ports during hydrostatic and pneumatic leak checks.
Sealing off bypass ports in gas chromatograph sampling conditioning systems.
Plugging spare distribution ports on multi-port compressed air header blocks.
Blanking spare diagnostic taps until external sensors are hooked up.
Corrosion-resistant port sealing on shipboard automation and ballast control panels.
Rapidly blanking open ports between diverse testing configurations on calibration benches.
Pioneer Industries’ Brass Double Ferrule Tube Plug 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 Tube Plug.
A Brass Double Ferrule Tube Plug is designed to isolate and seal an unused double-ferrule compression port on a fitting, manifold, or valve body.
A tube plug seals an empty fitting port, whereas a tube cap seals the open end of a bare tube.
No. The tube plug is engineered to seal directly into the fitting body using the existing nut, without requiring ferrules. If ferrules are already in the fitting, the plug can also be installed through them.
Insert the plug fully into the port, finger-tighten the fitting nut, and tighten only 1/4 turn with a wrench. Do not tighten 1-1/4 turns as you would with bare tubing.
Yes. Because there is no permanent deformation, the solid brass plug can be installed, removed, and reused indefinitely.
Metric Series MTP covers 3mm to 25mm port sizes, and Fractional Series ITP covers 1/8″ to 1″ port sizes.
Holds full working pressure up to 5,000 PSI (345 Bar), equal to the rating of the fitting body.
Precision CNC-machined from extruded brass bar stock ASTM B16 Alloy C36000 / CW614N.
Yes, certified leak-tight to < 1 × 10⁻⁹ mbar·l/s down to -750 mmHg vacuum.
EN 10204 Type 3.1 Material Test Certificates, hydrostatic pressure test reports, and dimensional compliance records.
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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.
