Double Ferrule Bulk Head Union

Product Details:

A Bulkhead Male Connector is a double ferrule tube fitting that allows a tubing connection through a panel or enclosure. Made from SS304, it provides reliable, leak-free connections in medium to high-pressure systems, and is ideal for non-corrosive to mildly corrosive environments.

• Material: Stainless Steel 304 (corrosion-resistant, cost-effective)

• Design: Double Ferrule Compression Fitting

• Tube Side: Compression (tube OD from 1/8” to 1”)

• Threaded Side: Male thread (NPT, BSPT, ISO, Metric)

• Bulkhead Nut: Allows panel mounting through a wall or enclosure

• Pressure Rating: Up to 6,000 PSI (varies by size and tubing wall thickness)

• Temperature Rating: Up to 400°C (750°F), depending on seal/ferrule material

• Leak-proof and vibration-resistant

• Allows tubing to pass through panels, walls, or enclosures securely

• Easy to install and reassemble without welding

• Suitable for gas, liquid, hydraulic, or pneumatic systems

• Clean finish for laboratory and instrumentation applications

• Instrument panels and enclosures

• Gas sampling lines

• Hydraulic and pneumatic systems

• Analytical and process control instrumentation

• Offshore and skid-mounted equipment

• Brands: Kalpataru, Swagelok®

• Options: SS316 for higher corrosion resistance, electropolished versions for pharma/food

Additional Information:

• Production Capacity: 100 PER DAY
• Delivery Time: EX. READY STOCK
• Packaging Details: HPDE BOX

Product Details:

Material Properties:

• Excellent resistance to oxidation, acids, chlorides, and high-temperature corrosion

• Maintains strength at extreme temperatures (up to 1100 °C depending on grade)

• Suitable for aggressive chemical, marine, or high-pressure service

• Tube Connection: Double ferrule compression fitting

• Thread Connection: Fitting body may have threaded ends (NPT, BSPT, SAE) to connect to pipes, valves, or manifolds

• Operation:

  1. Insert tubing into union body

  2. Tighten nut, compressing ferrules

  3. Front ferrule seals the tube

  4. Back ferrule secures tube mechanically

Key Feature: No welding required on tubing; reusable and adjustable.

Note: Sizes depend on tubing application (instrumentation, process, or hydraulic lines).

Remarks: Very suitable for high-pressure/high-temperature instrumentation lines, chemical, and petrochemical processes.

• High corrosion resistance (including oxidizing and reducing chemicals)

• High strength at elevated temperatures

• Leak-tight without welding or threading the tube

• Can be reused; tubes can be replaced or reconnected

• Ideal for extreme environments: chemical, petrochemical, marine, and high-temperature reactors

• Provides mechanical grip on tubing to prevent pullout

• High-pressure instrumentation lines (pressure transmitters, DP cells, gauges)

• Petrochemical and chemical plants

• Oil & gas high-pressure piping

• Aerospace and marine applications

• Laboratory and analytical systems

• High-temperature steam or gas 

Product Details:

• A reducing union connects two tubes of different outer diameters (OD).

• A double ferrule system uses two metal rings (ferrules) for better sealing and gripping.

• Made from stainless steel, this fitting is corrosion-resistant, durable, and suitable for high-pressure, high-purity applications.

Each side of the union (one for large tube, one for smaller) includes a nut, front ferrule, and back ferrule.

• Insert the tubes into each end.

• Tighten the nuts; this compresses the ferrules.

  • The front ferrule seals against the fitting body and the tubing.

  • The back ferrule provides a strong grip and prevents pull-out.

• Provides leak-proof, vibration-resistant connection—no welding, threading, or sealing tape needed.

316 is generally preferred for chemical, marine, and high-purity applications.

Can be inch or metric sizes. Always match tubing OD.

• Depends on tube size, wall thickness, and fitting design.

• Typical range: Up to 6,000 psi (400 bar) or higher.

• Designed for high-pressure instrumentation systems.

• Often made to be interchangeable with Swagelok® or Parker A-LOK® fittings (but check with manufacturer).

• Manufacturing standards may follow:

  • ASTM A276 / A479 – SS bar for machining

  • ASME B31.3 – Process piping

  • DIN 2353 (for metric fittings)

✅ Use clean, burr-free tubing
✅ Insert tube fully into fitting body
✅ Follow manufacturer’s torque or turn-of-nut method
✅ No need for sealants or tapes
✅ Do not reuse ferrules—use new sets on reinstallation

Product Details:

A bulkhead union ferrule fitting is a specialized compression fitting designed to connect tubing through a panel, bulkhead, or enclosure, providing a secure and leak-proof transition between two tube ends on opposite sides. Constructed from Stainless Steel 316, it offers excellent corrosion resistance and durability, especially in harsh or corrosive environments.

• Material: Stainless Steel 316 / 316L (for enhanced corrosion resistance)

• Type: Bulkhead fitting with union and ferrule design

• Function: Enables tubing to pass through bulkheads, panels, or walls while maintaining a leak-tight seal

• Connection: Compression style with double ferrule for secure grip and seal

• Thread Type: Usually male or female threaded on the bulkhead side, compatible with NPT, BSP, or metric threads

• Sizes: Typically ranges from 1/8” to 2” OD tubing compatibility

• Pressure Rating: Up to 6000 PSI (depending on size and specification)

• Temperature Range: -196°C to 400°C (-320°F to 752°F), depending on seal and design

• Excellent corrosion resistance, suitable for aggressive environments

• Leak-proof, reliable seal via double ferrule technology

• Facilitates easy installation and maintenance across bulkheads or panels

• Mechanical strength to withstand vibration and thermal cycling

• Compatible with a wide range of tubing materials and fluids

• Instrumentation and process control panels

• Chemical and petrochemical plants

• Oil & gas refineries

• Pharmaceutical and food processing equipment

• Hydraulic and pneumatic control systems

• Kalpataru Pipe & Fittings

Additional Information:

• Delivery Time: Ready Stock
• Packaging Details: Box

Product Details:

 KALPATARU ^{compression tube fittings are double ferrule-type fittings  which provide} 

^{leak-proof, torque-free seals at the tubing connection.}

^{They provide  safety and  eliminate hazardous leaks of fluids in the} 

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Product Details:

A Stainless Steel 304 Bulkhead Union Connector is a type of double ferrule tube fitting used to securely connect two lengths of tubing through a panel or enclosure wall. The bulkhead design includes a locking nut that allows the fitting to be mounted tightly to a wall or panel, making it ideal for creating leak-tight transitions between internal and external piping.

| Thread Type (Body) | UNF/Metric for panel nut; no pipe threads on tube ends |
| Pressure Rating | Up to 6,000 psi (depending on tube size and wall thickness) |
| Temperature Rating | -65°F to 850°F (-54°C to 454°C) with PTFE or metal ferrules |

• Pass-through panel design for secure, leak-free transitions between compartments

• Double ferrule grip for vibration resistance and reliable sealing

• Corrosion-resistant SS 304 for water, air, and mild chemical services

• Reusable and re-tightenable without loss of integrity

• Compact and easy to install without welding or threading

• Instrumentation and control panels

• Gas or fluid transfer through enclosures or cabinets

• Hydraulic and pneumatic systems

• Chemical dosing skids

• Laboratory and analytical equipment

• Marine and HVAC systems

• Swagelok®

• KALPATARU

Additional Information:

• Production Capacity: 15000
• Delivery Time: READY STOCK

Product Details:

^{KALPATARU  compression tube fittings are double ferrule-type fittings  which provide} 

^{leak-proof, torque-free seals at the tubing connection.}

^{They provide  safety and  eliminate hazardous leaks of fluids in the} 

^{instrumentation field for a process, pressure, hydraulic, and other applicable tubing systems}