Tee-Type Male Tube Fitting with Dual Ferrules

Tee-Type Male Tube Fitting Product Overview

SIYelectric Tee-Type Male Tube Fitting is designed to connect three lines in instrumentation tubing, fluid systems, gas systems, hydraulic systems, pneumatic systems, and process control assemblies.

This fitting usually has compression tube fitting connections on two inline ends and a male threaded branch connection in the middle. The inline tube ends are used to connect tubing, while the male threaded branch can be connected to a female-threaded valve, instrument, manifold, pipe fitting, or equipment port.

It is commonly used where a system needs flow branching, flow convergence, sampling, pressure measurement, testing, or instrument connection in a compact layout.

How It Works

The tee-type structure creates a three-way connection point:

This design helps reduce the need for multiple separate fittings and makes the system easier to assemble in panels, skids, and limited installation spaces.

Compatible Instruments and Components

This tee-type male tube fitting can be used with:

• Pressure transmitters
• Differential pressure transmitter impulse lines
• Pressure gauges
• Pressure switches
• Gauge valves
• Needle valves
• Ball valves
• Instrument manifolds
• Calibration ports
• Test ports
• Sampling lines
• Analyzer systems
• Hydraulic and pneumatic control panels

For pressure measurement systems, the male branch can be used to connect a pressure gauge, pressure transmitter, gauge valve, manifold, calibration port, or test connection to the main tubing line.

Typical Application Scenarios

1. Pressure Measurement Branch Connection

Used when a tubing line needs an additional branch for pressure measurement or instrument connection.

Typical examples include:

• Adding a pressure gauge to an instrument line
• Connecting a pressure transmitter to a tubing system
• Creating a test point for calibration
• Adding a pressure switch to a control line

2. Instrument Tubing and Impulse Lines

Suitable for pressure transmitter and differential pressure transmitter impulse tubing where a compact tee connection is required.

It can help connect:

• Process impulse lines
• Manifold tubing
• Calibration lines
• Vent or drain connections
• Test equipment connection points

3. Sampling and Analyzer Systems

Used in gas sampling lines, liquid sampling systems, analyzer cabinets, and laboratory setups where the flow path needs to be split or connected to an instrument.

Common use cases include:

• Analyzer sample inlet lines
• Calibration gas lines
• Sampling bypass lines
• Laboratory test systems
• Process monitoring skids

4. Hydraulic and Pneumatic Control Lines

Applied in hydraulic power units, pneumatic control panels, actuator control circuits, and compact equipment assemblies.

The tee-type structure is useful when one control line needs to connect with another tube line and a threaded component at the same point.

5. Process Skids and Industrial Fluid Systems

Used in chemical dosing skids, filtration units, gas panels, water treatment modules, and general process assemblies where three-way tube-to-thread connection is required.

For corrosive media, high-pressure service, or high-temperature applications, material, thread type, sealing method, and pressure rating should be confirmed before selection.

Key Benefits

Selection Notes

Before selecting a tee-type male tube fitting, confirm:

• Tube outer diameter
• Male thread type, such as NPT, BSP, BSPT, or metric thread
• Material grade, such as SS304 or SS316
• Working pressure
• Working temperature
• Process medium
• Required sealing method
• Whether it is used for instrumentation, hydraulic, pneumatic, sampling, or process piping

Correct selection helps ensure reliable sealing, stable pressure performance, and long service life.

Main Advantages

• Provides a compact tube-to-tube-to-male-thread tee connection.
• Suitable for pressure instruments, manifolds, valves, analyzer systems, and sampling lines.
• Helps simplify tubing layouts in instrument panels and process skids.
• Supports pressure measurement, calibration, testing, flow branching, and flow convergence.
• Stainless steel options provide good corrosion resistance for industrial environments.
• Available in different tube sizes, thread standards, and pressure ratings according to project requirements.