Pioneer Industries manufactures heavy-duty Brass Push to Lock Couplers engineered for inline straight tube-to-tube pneumatic connections. Features dual instant one-touch tube locking sockets, 304 stainless steel gripping collets, and electroless nickel plating for high-pressure industrial automation.
The Brass Push to Lock Coupler (straight equal union) manufactured by Pioneer Industries is an essential pneumatic fitting designed to couple two metric tubing lines of identical diameter in a perfectly straight, collinear orientation. Engineered for fast, tool-free installation and repeated disconnections, it provides a permanent, leak-proof bridge across automated air circuits without restricting volumetric flow.
Constructed from hot-machined extruded brass alloy IS 319 / CW614N and shielded with an electroless nickel coating, each coupler features dual opposing push-in sockets. When tubing is inserted, internal 304 stainless steel collet teeth instantly bite into the outer tube wall while high-density NBR O-rings establish a 360-degree seal against vacuum down to -750 mmHg and pressures up to 16 Bar.
Pioneer Industries manufactures and exports Brass Push to Lock Coupler fittings to automation machine builders, robotics integrators, packaging OEMs, and pneumatic system designers across more than 85 countries. Headquartered in Mumbai, India, we maintain large-scale inventories covering 4mm, 6mm, 8mm, 10mm, and 12mm tube sizes for immediate dispatch.
Every coupler undergoes 100% pneumatic bubble immersion testing at 10 Bar to ensure zero seal porosity. All export consignments are accompanied by genuine EN 10204 Type 3.1 Material Test Certificates and RoHS compliance declarations.
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Engineered for continuous duty in demanding automation environments, the Pioneer Brass Push to Lock Coupler delivers superior mechanical durability compared to standard plastic push-in unions. Its solid all-metal body resists high-impact shop floor collisions, weld spatter, airborne abrasives, and aggressive synthetic compressor lubricants.
Connecting tubing requires zero tools: simply push the cut tube firmly into the socket past the internal O-ring stop. Disconnecting is accomplished in seconds by depressing the circular release collar, smoothly releasing the stainless steel collet teeth without scratching or damaging the tubing outer diameter.
Pioneer Industries manufactures Brass Push to Lock Couplers in metric tube sizes 4 mm, 6 mm, 8 mm, 10 mm, and 12 mm OD (Codes P0004 to P0012). Certified under ISO 14743 and ASME B31.3 with a 4:1 safety burst factor.
Explore comprehensive engineering dimensional configurations for Metric Series P0004 - P0012, Operating Parameters, and Certified Metallurgy. Manufactured according to ISO 14743, ASME B31.3, and international pneumatic standards.
| Code | Tube O.D. (mm) | Tube I.D. (mm) | Body Hex / Diameter (mm) | Overall Length (mm) | Working Pressure |
|---|---|---|---|---|---|
| P0004 | 4 mm | 2 mm | 10.0 mm | 31.0 mm | 16 Bar |
| P0006 | 6 mm | 4 mm | 12.5 mm | 34.5 mm | 16 Bar |
| P0008 | 8 mm | 6 mm | 14.5 mm | 37.0 mm | 16 Bar |
| P0010 | 10 mm | 8 mm | 17.5 mm | 42.0 mm | 16 Bar |
| P0012 | 12 mm | 10 mm | 20.0 mm | 46.5 mm | 16 Bar |
| Operating Parameter | Standard Specification | Optional / Severe Service Rating |
|---|---|---|
| Fluid Media | Compressed Air, Industrial Vacuum, Inert Gases (N2, Ar, CO2) | Low-Pressure Water, Lubricating Oils (with Viton seals) |
| Working Pressure Range | 0 to 16 Bar (0 to 230 PSI / 0 to 1.6 MPa) | Burst pressure exceeding 35 Bar (tested at 20°C) |
| Vacuum Rating | -750 mmHg (-29.5 inHg / 10 Torr / 99% Vacuum) | Suitable for automated suction handling & pick-and-place |
| Temperature Envelope | -20°C to +80°C (-4°F to +176°F) with standard NBR | -20°C to +150°C (-4°F to +302°F) with FKM Viton |
| Compatible Tubing | Nylon (PA6, PA11, PA12), Polyurethane (PU 95A/98A), Polyethylene | PTFE, FEP, PFA (for chemical exposure) |
| Joint Retention | AISI 304 multi-tooth spring-tempered gripping collet | Non-destructive, quick-release push collar |
Pioneer Industries utilizes top-grade brass alloys and premium stainless steel components for maximum structural integrity:
| Component | Material Standard | Composition / Chemistry |
|---|---|---|
| Fitting Body | Extruded Brass IS 319 / CW614N / ASTM B16 | Cu: 57.0–60.0%, Pb: 1.6–3.0%, Zn: Remainder |
| Gripping Collet | AISI 304 / 301 Stainless Steel | High-tensile spring-tempered austenitic stainless steel |
| Release Collar | Electroless Nickel-Plated Brass / Zinc Alloy | Anti-shear alloy with nickel plating |
| Radial O-Ring | Nitrile (NBR) / Optional FKM Viton | High-density oil-resistant elastomer (-20°C to +80°C) |
Our manufacturing and testing protocols strictly adhere to international engineering benchmarks:
Brass Push to Lock Coupler components are deployed across demanding industrial automation, machine building, and process lines, including:
Extends inline tubing runs across automated machine beds and pneumatic solenoid valve sub-bases.
Provides quick-disconnect coupling points on articulated robot arm pneumatic dress packs.
Couples high-frequency compressed air feeds to cartoners, tray formers, and case sealers.
Connects pneumatic cylinder feed lines on automated body-in-white welding fixtures.
Hygienic electroless nickel plating prevents particulate shedding in cleanroom processing areas.
Transfers air blast and pneumatic workholding lines across machine tool enclosures.
Maintains vibration-resistant air delivery to high-speed pneumatic weaving and spinning jets.
Enables quick component swap-outs and test line reconfiguration on quality assurance benches.
Pioneer Industries’ Brass Push to Lock Coupler components are trusted across critical global industrial sectors:
Expert engineering insights and technical guidance regarding flow dynamics, pressure thresholds, tubing compatibility, and installation protocols for Brass Push to Lock Coupler.
A Brass Push to Lock Coupler (straight equal union) is an all-metal pneumatic fitting designed to join two pneumatic tubes of identical outer diameter inline. When tubing is pushed into either end, internal 304 stainless steel collet teeth grip the tube wall while a Nitrile O-ring forms an airtight seal, requiring no wrenches, ferrules, or thread sealants.
Pioneer Industries Brass Push to Lock Couplers are certified for continuous working pressures from 0 to 16 Bar (0 to 230 PSI / 1.6 MPa) and proof-tested beyond 35 Bar. They also maintain full vacuum seal integrity down to -750 mmHg (-29.5 inHg / 10 Torr).
They are fully compatible with flexible and semi-rigid metric tubing including Nylon (Polyamide PA6, PA11, PA12), Polyurethane (PU 95A/98A), Polyethylene (LDPE/HDPE), and Fluoropolymer (PTFE, FEP, PFA).
First depressurize the pneumatic circuit. Next, press the circular nickel-plated release collar squarely toward the center of the fitting body. While holding the collar down, pull the tubing straight out from the socket.
Yes. The spring-tempered stainless steel collet is designed for non-destructive engagement. It releases cleanly when the collar is depressed without scoring, grooving, or deforming the tubing, enabling thousands of reconnect cycles.
Pioneer Industries manufactures the P00 series in standard metric tube sizes: P0004 (4mm), P0006 (6mm), P0008 (8mm), P0010 (10mm), and P0012 (12mm).
All-metal brass couplers offer extreme mechanical crush resistance, immunity to UV embrittlement, superior performance under heavy machine vibration, and high tolerance to hot ambient temperatures and weld spatter.
Standard Nitrile (NBR) seals operate between -20°C and +80°C (-4°F to +176°F). Optional high-temperature Viton (FKM) seals are available for elevated thermal applications up to +150°C.
The coupler is engineered with an optimized internal bore diameter that closely matches the tube inner diameter, maintaining full laminar flow with negligible pressure drop.
Every dispatch from our Mumbai plant is backed by ISO 9001:2015 quality standards, 100% bubble leak testing records, RoHS compliance declarations, and EN 10204 Type 3.1 Material Test 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.
