Pioneer Industries manufactures heavy-duty Brass Push to Lock Bulkhead fittings engineered for seamless pneumatic tube pass-through across control cabinets, machine bulkheads, and robotic panels, featuring instant one-touch tube locking, stainless steel gripping collets, and dual heavy-duty hex jam nuts for vibration-proof sealing.
The Brass Push to Lock Bulkhead connector manufactured by Pioneer Industries is an advanced panel pass-through fitting designed to route compressed air and vacuum circuits across machine partitions, control panels, and automation enclosures without tube abrasion or pressure loss. Engineered specifically for demanding high-cycle automated production lines, this fitting provides a permanent, rigid panel mount paired with instant, tool-free tube connectivity on both sides.
In conventional automation setups, tubes routed through raw sheet metal cutouts are vulnerable to mechanical pinching, vibration fatigue, and premature rupture. The Pioneer Brass Push to Lock Bulkhead solves this completely: its full-length threaded brass body clamps firmly to panels up to 12 mm thick using dual hex jam nuts, while internal 304 stainless steel collets and Nitrile O-rings ensure an airtight, 360-degree seal that withstands working pressures up to 16 Bar and coarse vacuum down to -750 mmHg.
Pioneer Industries manufactures and exports Brass Push to Lock Bulkhead components to leading industrial automation builders, robotic system integrators, pharmaceutical packaging OEMs, and pneumatic system designers across more than 85 countries. Operating from our state-of-the-art facility in Mumbai, India, we maintain extensive stock across all standard metric tube sizes (4mm to 12mm) for immediate international dispatch.
Components are precision CNC-machined from premium extruded brass (IS 319 / CW614N) and finished with micro-smooth electroless nickel plating for exceptional wear and corrosion resistance. Every production lot undergoes 100% pneumatic bubble leak testing at 10 Bar and is accompanied by authentic EN 10204 Type 3.1 Mill Test Certificates.
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Manufactured from precision-machined extruded brass (IS 319 / CW614N) and treated with a micro-smooth electroless nickel-plated finish, the Pioneer Brass Push to Lock Bulkhead provides an instantaneous, hermetically sealed pass-through connection across panel walls, control cabinets, and machine partitions up to 12 mm thickness.
The fitting is 100% tool-free and cold-assembled. Designed with an internal 304 stainless steel multi-tooth gripping collet and precision Nitrile O-ring, tubing connects with a single smooth push past the tube stop. Disconnection is equally effortless by depressing the nickel-plated release collar, allowing the tube to withdraw completely unblemished and reusable for thousands of cycles.
Pioneer Industries manufactures Brass Push to Lock Bulkhead fittings in metric tube sizes from 4 mm to 12 mm OD (Codes P0704 to P0712) with standard M12 to M22 external mounting threads. Rated for working pressures up to 16 Bar with burst safety factor under ISO 14743 and ASME B31.3 standards.
Explore comprehensive engineering dimensional configurations for Metric Series P0704 to P0712, 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) | Bulkhead Thread (M) | Hex Nut Size (mm) | Overall Length (mm) | Max Panel Thickness (mm) | Working Pressure |
|---|---|---|---|---|---|---|---|
| P0704 | 4 mm | 2 mm | M12 x 1.0 | 14 mm | 31.5 mm | 8.0 mm | 16 Bar |
| P0706 | 6 mm | 4 mm | M14 x 1.0 | 17 mm | 35.0 mm | 9.5 mm | 16 Bar |
| P0708 | 8 mm | 6 mm | M16 x 1.0 | 19 mm | 38.5 mm | 10.0 mm | 16 Bar |
| P0710 | 10 mm | 8 mm | M20 x 1.0 | 24 mm | 43.0 mm | 12.0 mm | 16 Bar |
| P0712 | 12 mm | 10 mm | M22 x 1.0 | 26 mm | 47.5 mm | 12.0 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, Mineral 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) |
| Mounting Wall Thickness | Up to 12.0 mm panel clearance | Extended barrel length options for double-wall panels |
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 |
| Bulkhead Jam Nuts | Hot-Forged Brass CW617N / IS 8737 | Cu: 57.0–59.0%, Pb: 1.6–2.5%, 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 Bulkhead components are deployed across demanding industrial automation, machine building, and process lines, including:
Provides leak-free, orderly feed-through for pneumatic main feed and pilot signal tubes penetrating industrial automation enclosures and solenoid valve cabinets.
Guarantees rugged, high-cycle tubing transitions across articulated robotic arms, EOAT (End of Arm Tooling), pick-and-place grippers, and indexing rotary tables.
Resists continuous vibration, air pulsation, and mechanical shock across high-speed cartoning, bottling, wrapping, and pouch-filling production machinery.
Provides durable partition connections for pneumatic clamping cylinders, pneumatic torque tools, and pneumatic test benches across automotive plants.
Electroless nickel-plated finish complies with hygiene standards, facilitating clean pass-through into sterile isolators and packaging cells.
Supplies compressed air through metal frame bulkheads to high-frequency pneumatic web guide tensioners, doctor blades, and ink agitators.
Withstands intermittent washdowns and temperature fluctuations on automated washdown-rated pneumatic sorting and filling machines.
Enables rapid, tool-free tube interchangeability for high-volume quality inspection test benches and instrumentation testing cells.
Pioneer Industries’ Brass Push to Lock Bulkhead components are trusted across critical global industrial sectors:
Expert engineering insights and technical guidance regarding panel mounting mechanics, pressure thresholds, tubing compatibility, and installation protocols for Brass Push to Lock Bulkheads.
A Brass Push to Lock Bulkhead fitting (also designated as a one-touch pneumatic bulkhead union) is an engineered pass-through connector developed to route pneumatic tubing across control cabinet enclosures, machine bulkhead plates, and robotic manifolds. It incorporates an externally threaded, nickel-plated brass body fitted with dual precision hex lock nuts and internal serrated lock washers. By drilling a clearance hole through a panel (up to 12 mm thickness), inserting the bulkhead barrel, and torquing the jam nuts from opposing sides, the fitting establishes a rigid, vibration-resistant, hermetically isolated mechanical pass-through that protects tubing from structural panel abrasion while providing instant, tool-free push-to-connect sockets on both sides.
Pioneer Industries Brass Push to Lock Bulkheads are engineered for positive operating pressures from 0 to 16 Bar (0 to 230 PSI / 1.6 MPa) under standard ambient working temperatures, and are proof-tested to burst thresholds exceeding 35 Bar. They also function reliably under industrial vacuum conditions down to -750 mmHg (-29.5 inHg / 10 Torr / 99% coarse vacuum). The standard operating temperature span ranges from -20°C to +80°C (-4°F to +176°F) utilizing high-density Nitrile (NBR) internal O-rings, and can be configured with Fluorocarbon (FKM / Viton) seals for elevated thermal duty up to +150°C.
Our push-to-lock bulkhead unions are precision-machined to couple seamlessly with all standard semi-rigid and flexible pneumatic thermoplastic tubing. Compatible polymers include Polyamide / Nylon (Nylon-11, Nylon-12 per DIN 73378), Polyurethane (PU 95A/98A ether- and ester-based), Polyethylene (LDPE / HDPE), and Fluoropolymer (PTFE / FEP / PFA). Tubing outer diameters must conform to metric dimensional tolerances (+/-0.05 mm to +/-0.1 mm) to ensure a bubble-tight seal against the internal O-ring and positive mechanical bite from the stainless steel collet.
The fitting utilizes an advanced one-touch push-in retention architecture. Inside each port sits an engineered 304 austenitic stainless steel gripping collet with multi-tooth perimeter retention teeth, supported by an electroless nickel-plated release collar and a precision Nitrile O-ring seated within an internal radial groove. When pneumatic tubing is pushed straight into the port past the tube stop, the O-ring forms an airtight 360-degree perimeter seal around the tube outer diameter, while the angled spring teeth of the collet bite into the tube wall. When internal line pressure increases, the outward thrust forces the collet deeper into an internal locking taper, multiplying its mechanical grip and making tube blow-out impossible.
Pioneer Industries stocks and manufactures the complete P07 metric series for immediate global dispatch: Code P0704 (4 mm Tube O.D., 2 mm I.D., M12x1.0 bulkhead thread); Code P0706 (6 mm Tube O.D., 4 mm I.D., M14x1.0 bulkhead thread); Code P0708 (8 mm Tube O.D., 6 mm I.D., M16x1.0 bulkhead thread); Code P0710 (10 mm Tube O.D., 8 mm I.D., M20x1.0 bulkhead thread); and Code P0712 (12 mm Tube O.D., 10 mm I.D., M22x1.0 bulkhead thread). Custom fractional inch sizes (1/8″ to 1/2″ O.D.) and extended-length bulkhead barrels are available upon custom engineering request.
Installation is rapid and tool-free for tubing connections: (1) Cut the tubing perfectly square (90°) using an approved tube cutter, ensuring no burrs, flat spots, or longitudinal scratches; (2) Push the tubing firmly through the release collar and past the internal O-ring until it firmly bottoms against the internal tube stop; (3) Gently pull back on the tube to verify that the stainless steel collet teeth have positively locked. To disconnect: (1) Depressurize the pneumatic line completely; (2) Press the circular nickel-plated release collar squarely downward toward the fitting body; (3) While maintaining downward pressure on the collar, smoothly withdraw the tubing from the socket.
While plastic push-in fittings are adequate for light commercial use, industrial environments subject bulkhead mountings to significant mechanical stress, panel vibration, thermal cycling, and incidental physical impact. Pioneer Industries all-metal nickel-plated brass bulkhead fittings provide extreme mechanical crush resistance, indestructible metal mounting threads that will never strip during wrench torquing, high resistance to weld splatter and ultraviolet degradation, and superior corrosion resistance in oil-misted, humid, or salt-laden industrial environments.
Each bulkhead size requires an appropriate panel cutout diameter corresponding to its external barrel metric thread: M12 for 4mm tube (12.5 mm cutout), M14 for 6mm tube (14.5 mm cutout), M16 for 8mm tube (16.5 mm cutout), M20 for 10mm tube (20.5 mm cutout), and M22 for 12mm tube (22.5 mm cutout). The hex jam nuts should be tightened using calibrated open-end wrenches against the panel to recommended torque values: 8-10 Nm for M12, 12-14 Nm for M14/M16, and 18-22 Nm for M20/M22. Overtightening should be avoided to prevent stripping fine pitch threads.
Yes. In addition to clean, filtered, lubricated, or dry compressed air, these nickel-plated brass bulkheads are fully certified for medium industrial vacuum circuits down to -750 mmHg, inert gases such as Nitrogen (N2), Argon (Ar), and Carbon Dioxide (CO2), as well as low-pressure industrial cooling circuits (when paired with appropriate tubing and Viton/EPDM seals). For aggressive chemical acids or potable water duty, Pioneer Industries manufactures companion bulkhead unions in 316 Stainless Steel.
Manufactured at our ISO 9001:2015 certified facility in Mumbai, every production lot of Brass Push to Lock Bulkheads undergoes rigorous quality verification: 100% pneumatic bubble leak testing at 10 Bar, burst pressure testing to 35+ Bar, dimensional verification with coordinate measuring machines (CMM) and optical profile projectors, and 100,000-cycle vibration fatigue endurance tests. Consignments are exported with comprehensive EN 10204 Type 3.1 Material Test Certificates, RoHS compliance declarations, and seaworthy export packaging.
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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.
