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At Pioneer Industries, we offer these Industrial Brass Compression Fitting Bulkhead with utmost functionality for your required applications. We are manufacturer, supplier of Brass Compression Fitting Bulkhead and India’s leading Brass Compression Fittings Exporters in Mumbai.
Compression fittings function by the compression of an ‘olive’ between two tapered surfaces and the pipe itself. The two surfaces are the body of the fitting (beveled seat) and the compression nut. As the nut is tightened, the olive is compressed onto the pipe, creating an airtight, watertight, zero-leak seal.
We are India’s one of the leading Brass Compression Fitting Bulkhead manufacturers and exporters to more than 85 countries for exporting and manufacturing on a large scale. All size supply maintains a massive inventory of Brass Compression Fitting Bulkhead, with all standard sizes and numerous styles available.
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Brass Compression Fitting Bulkhead (also designated as a Brass Compression Bulkhead Union) is an externally threaded panel-mount connector equipped with a heavy-duty brass locknut and washer, engineered to pass fractional or metric tubing securely through enclosure walls, partition bulkheads, and machinery panels.
We at Pioneer Industries manufacture a wide variety of Brass Compression Fitting Bulkhead which find applications in numerous industries like Oil & Gas Industries, Chemical Industry, Nuclear Energy Sector, Petroleum Industries, Defence Industry, and Aerospace Industry. Available in numerous dimensions and grades.
Sizes: 1/8″ to 1″ Tube O.D. (3 mm to 25 mm) with male/female thread profiles like NPT, BSPT, and BSPP (1/8″ to 1″). Material of Construction: Forged Brass (Body BS-218) & Extruded Brass (Nuts/Sleeves BS-249). Materials conforming to NACE MR 01-75 is available on specific requests.
Explore comprehensive engineering dimensional configurations for Fractional Inch Series, Metric Series, and Certified Material Specifications. Manufactured according to SAE J512, ASME B16.26, and international standards.
| Part Number | Tube O.D. (Inch) | Bulkhead Thread (UN/Metric) | Max Panel Thickness (mm) | Overall Length L (mm) | Nut Hex A/F (Inch) | Locknut Hex A/F (Inch) | Working Pressure (PSI) |
|---|---|---|---|---|---|---|---|
| PI-BCBH-02 | 1/8″ (0.125″) | 5/16-24 UNF | 8.0 mm | 42.0 mm | 3/8″ | 1/2″ | 400 PSI |
| PI-BCBH-03 | 3/16″ (0.187″) | 3/8-24 UNF | 9.0 mm | 46.0 mm | 7/16″ | 9/16″ | 400 PSI |
| PI-BCBH-04 | 1/4″ (0.250″) | 7/16-24 UNS | 10.0 mm | 50.0 mm | 1/2″ | 5/8″ | 300 PSI |
| PI-BCBH-05 | 5/16″ (0.312″) | 1/2-24 UNS | 10.5 mm | 52.0 mm | 9/16″ | 11/16″ | 300 PSI |
| PI-BCBH-06 | 3/8″ (0.375″) | 9/16-24 UNEF | 11.0 mm | 55.0 mm | 5/8″ | 3/4″ | 250 PSI |
| PI-BCBH-08 | 1/2″ (0.500″) | 11/16-20 UN | 12.0 mm | 62.0 mm | 13/16″ | 7/8″ | 200 PSI |
| Part Number | Tube O.D. (mm) | Bulkhead Thread (Metric) | Max Panel Thickness (mm) | Overall Length L (mm) | Nut Hex A/F (mm) | Working Pressure (Bar) |
|---|---|---|---|---|---|---|
| PI-BCBH-M04 | 4 mm | M10 × 1.0 | 8.0 mm | 44.0 mm | 10 mm | 28 Bar (400 PSI) |
| PI-BCBH-M06 | 6 mm | M12 × 1.0 | 10.0 mm | 50.0 mm | 12 mm | 21 Bar (300 PSI) |
| PI-BCBH-M08 | 8 mm | M14 × 1.0 | 10.5 mm | 52.0 mm | 14 mm | 21 Bar (300 PSI) |
| PI-BCBH-M10 | 10 mm | M16 × 1.0 | 11.0 mm | 55.0 mm | 17 mm | 17 Bar (250 PSI) |
| PI-BCBH-M12 | 12 mm | M18 × 1.5 | 12.0 mm | 62.0 mm | 19 mm | 14 Bar (200 PSI) |
| PI-BCBH-M15 | 15 mm | M22 × 1.5 | 12.5 mm | 68.0 mm | 24 mm | 10 Bar (150 PSI) |
| Component | Material Specification | Standard Specification | Chemical Composition | Mechanical Properties | Temperature Limits | Key Features |
|---|---|---|---|---|---|---|
| Body Component | Forging Brass (BS 218 / CW617N) | BS EN 12165 / ASTM B283 C37700 | Cu: 57.0–59.0%, Pb: 1.6–2.5%, Zn: Rem. | Tensile ≥ 440 MPa, 110–150 HB | -54°C to +121°C (up to 204°C) | High wall density, zero internal porosity, >80% higher strength than cast brass |
| Extruded Component | Stress-Relieved Brass (BS 249 / CW614N) | IS 319 Gr. 1 / ASTM B16 C36000 | Cu: 58.0–60.0%, Pb: 1.5–3.0%, Zn: Rem. | Tensile ≥ 400 MPa, 100–140 HB | -54°C to +121°C | Precision CNC threads, high shear strength, long nut option for vibration |
| Compression Sleeve (Olive) | Annealed Brass / Copper Olive | BS EN 12449 / ASTM B135 | High Purity Brass / Copper | Controlled Ductility for Swaging | -54°C to +150°C | Precision 360° radial swage onto tube wall, leak-tight metal-to-metal seal |
| Tube Insert (Optional) | Brass Tubular Support Insert | IS 319 / ASTM B16 | Cu: 58.0–60.0% | High Radial Rigidity | -54°C to +120°C | Prevents plastic tubing (nylon/PU) collapse under compression olive bite |
Brass Compression Fitting Bulkhead finds deployment across a wide range of industrial fluid and gas circuits:
Connects compressed air lines into solenoid valves, pilot regulators, and cylinder drops across industrial packaging and manufacturing lines.
Distributes centralized grease and pressurized oil feeds across multi-point bearing lubrication headers and CNC machine slideways.
Connects copper refrigerant sensing lines, pressure relief valves, and cooling coils in commercial air conditioning and chiller units.
Used in sample extraction lines, gauge take-offs, and purge gas delivery headers with corrosion-resistant performance in non-sour atmospheres.
Feeds diesel return lines, oil pressure sensors, and secondary fuel filters across commercial truck engines and power generators.
Delivers seawater washdown, potable water distribution, and auxiliary pneumatic control feeds aboard shipboard machinery spaces.
Connects copper and plastic tubing in commercial reverse osmosis, water softening, and beverage dispensing equipment.
Provides robust take-off taps for draft gauges, low-pressure steam indicators, and cooling water flow monitors in power plants.
Pioneer Industries’ Brass Compression Fitting Bulkhead are widely used in numerous industries like:
Expert engineering insights and technical guidance regarding design specifications, pressure tolerances, olive swaging mechanics, tubing compatibility, and installation best practices for industrial Brass Compression Fitting Bulkhead Union.
A Brass Compression Bulkhead fitting is a specialized dual-ended tube union designed with an elongated, fully threaded exterior body, a locking check nut, and a washer. It is mounted through a pre-drilled hole in an electrical enclosure, vehicle firewall, machine guard, or tank partition, allowing tubing lines to pass through the wall while maintaining structural rigidity and environmental isolation.
Operating pressure ratings span from 400 PSI (28 bar) for 1/8″ and 3/16″ tube sizes, 300 PSI (21 bar) for 1/4″ and 5/16″, down to 200 PSI (14 bar) for 1/2″ tubing, with a certified 4:1 safety factor against burst pressure. Operating temperatures range from -65°F to +250°F (-54°C to +121°C) with standard brass olives.
Standard Pioneer Brass Compression Bulkhead unions accommodate panel thicknesses up to 10 mm to 12 mm depending on tube size. Extended-length bulkheads for thicker panels up to 25 mm can be custom manufactured upon request.
Compatible tubing includes seamless copper (ASTM B75 / B88), brass (ASTM B135), and soft aluminum (ASTM B210). For thermoplastic tubing (nylon, polyurethane, polyethylene), an internal brass tube support insert must be utilized inside the tube bore to prevent collapse under sleeve compression.
To install: (1) Drill the panel hole matching the bulkhead thread clearance diameter; (2) Remove the locknut and washer, feed the bulkhead body through the panel, and re-thread the washer and locknut; (3) Tighten the locknut firmly against the panel using an open-end wrench; (4) Insert the tubing with nut and sleeve on each side, bottom out against the internal tube stop, and tighten the compression nuts 1-1/4 turns past finger tight.
Bulkhead bodies, locknuts, and compression nuts are precision CNC machined from high-tensile extruded brass bar stock conforming to IS 319 Gr. 1, CW614N / CZ121, and ASTM B16 C36000, ensuring high thread shear strength and zero porosity.
Yes. The compression nuts can be loosened for maintenance and retightened without replacing the pre-swaged tube and olive. When remaking, tighten finger-tight plus 1/4 to 1/3 turn with a wrench until firm resistance is felt.
The rigid panel clamp prevents external vibration from transferring across the wall, while the precision 24°/60° beveled internal seats and annealed brass olives distribute radial clamping stress uniformly, preventing notch fatigue and tube severance.
Options include natural bright brass, electrolytic bright nickel plating (5–8 µm) for oxidation protection, and electroless nickel plating (ENP, 10–25 µm) for harsh marine and chemical washdown environments.
All batches are 100% pneumatic bubble-immersion leak tested at 100 PSI (7 bar), dimensionally verified with Go/No-Go thread gauges, and shipped with EN 10204 Type 3.1 Mill Test Certificates.
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