DOUBLE FERRULE INSTRUMENTATION FITTINGS

Product Details:

A Double Ferrule Union Tee is a tube fitting designed to connect three sections of tubing in a T-shaped configuration using a double ferrule compression mechanism. This fitting provides a secure, leak-tight, and vibration-resistant connection—ideal for high-pressure and high-purity applications.

• Connection Type:

  • All three ports are compression-type tube connections

  • No threads or welding needed

  • Compatible with standard stainless steel tubing

• Ferrule System:

  • Double Ferrule:

    • Front Ferrule: Seals and grips the tube

    • Back Ferrule: Provides strong mechanical hold

  • Ensures leak-free, reusable connections

• Material Options:

  • Stainless Steel 316 (most common)

  • Also available in SS 304, Brass, Monel, etc.

• Sizes Available:

  • Imperial: 1/8", 1/4", 3/8", 1/2", 3/4", 1" OD

  • Metric: 6mm, 10mm, 12mm, 15mm, 25mm OD

• Pressure Rating:

  • Up to 6000 PSI, depending on tube size and wall thickness

  • Rated for both gas and liquid applications

• Operating Temperature:

  • Typically -65°F to 1200°F (-53°C to 649°C) with SS316

• Standards & Compatibility:

  • Meets or exceeds ASME B31.3, ASTM standards

  • Interchangeable with brands like 

  • KALPATARU

• Instrumentation lines and analyzers

• Hydraulic and pneumatic circuits

• Process control systems

• Gas sampling and distribution

• Oil & gas, chemical, and pharmaceutical plants

Additional Information:

• Production Capacity: 10000
• Packaging Details: HPDE BOX

Product Details:

• Connection types:

  • Male thread on branch (external threads).

  • Female thread or socket weld on run ends.

• Thread standards:

  • NPT (National Pipe Thread) — common in US.

  • BSP (British Standard Pipe) — common internationally.

• Size range:

  • Typically from 1/8” to 4” or more, depending on application.

• Wall thickness:

  • Schedule 10, 40, 80, or as per pressure rating.

• Dimensions: (example for 1/2" NPT Male Branch Tee)

  • Run Size: 1/2” female thread or socket weld.

  • Branch Size: 1/2” male thread.

  • Lengths and diameters conform to ASME B16.11 (Forged fittings) or equivalent standards.

• ASME B16.11 — Forged fittings, including threaded and socket weld fittings.

• ASTM A182 — Material standard for stainless steel forged fittings.

• ANSI/ASME B1.20.1 — Thread standards for NPT.

• ISO 7/1 — Thread standards for BSP.

• Branching off from a main pipeline in fluid or gas transport.

• Industries:

  • Chemical and petrochemical plants.

  • Food and beverage processing.

  • Pharmaceutical and biotech.

  • Water treatment and plumbing.

  • Oil and gas.

• Advantages in these areas:

  • High corrosion resistance.

  • Easy installation/removal due to threaded male branch.

  • Suitable for moderate to high pressures.