Blumat Ø8 mm Connectors – tees, elbows, and unions for the main line

Blumat Ø8 mm Connectors – Tees, Elbows, and Couplings for the Main Line

Original Blumat parts for installing, branching, and extending the Ø8 mm supply line in your automatic irrigation system. Use them to branch the line, change direction, join two sections, or run the Ø3 mm branch that goes down to each ceramic sensor. All variants are sold separately, as single pieces.

Key Features

• 8-3-8 Tee: inserts a sensor outlet in the middle of the branch; the Ø8 mm tube continues forward to the next plant.
• 8-3 Branch End: closes the section and provides the final sensor outlet; after this piece, the Ø8 mm line ends.
• 8-8-8 Tee: branches the main line into two Ø8 mm branches.
• 8-8 Elbow: changes the direction of the Ø8 mm tube without bending or kinking it.
• 8-8 Coupling: joins two straight sections of Ø8 mm tube to extend the line or repair a cut.

How to Use

The most common question is when to use the 8-3-8 Tee and when to use the 8-3 Branch End. The rule is simple: if the Ø8 mm line continues to other plants after that plant, use the 8-3-8 Tee; if that plant is the last one on the branch, use the 8-3 Branch End, which provides the sensor outlet and closes the section.

1. Map out the route of the Ø8 mm line and mark where each plant is located.
2. Cut the Ø8 mm tube at each branching point.
3. Insert an 8-3-8 Tee at each intermediate plant and an 8-3 Branch End at the last plant on each branch.
4. Use the 8-8-8 Tee wherever you need to split the main line into two branches.
5. Place 8-8 Elbows at turns and 8-8 Couplings to join sections or repair cuts.
6. Connect a Ø3 mm tube from each small outlet to its sensor and check that water flows through without leaks.

What Is It Compatible With?

All these parts are Ø8 mm, the size of the main supply line in the Blumat system. The Ø3 mm is the feeder line that reaches the sensor, and the two diameters are not interchangeable. The 8-3-8 Tee and the 8-3 Branch End are precisely the parts that bridge the two: they fit into Ø8 mm and have a Ø3 mm outlet. The Ø8 mm also connects to the pressure reducer, the tank connector, and the 8-8 shut-off valves; the Ø3 mm connects to the Tropf-Blumat sensors, mini-tees, mini-couplings, drip distributors, and 3 mm caps. Do not force a Ø3 mm tube into a Ø8 mm fitting or vice versa.

Technical Specifications

• Brand: Blumat (Austria)
• Main diameter: Ø8 mm
• Sensor outlet: Ø3 mm (only on the 8-3-8 Tee and 8-3 Branch End)
• Available variants: 8-8-8 Tee, 8-3-8 Tee, 8-3 Branch End, 8-8 Elbow, and 8-8 Coupling
• Packaging: 1 unit per reference
• Installation: push-fit onto the tube, no tools required
• Operation: by capillary action, no electricity or pump required

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1. Trace the path of the Ø8 mm line and mark where each plant will be located.
2. Cut the Ø8 mm tube at each branch point.
3. Use the 8-3-8 tee if the line continues to other plants after that plant.
4. Use the 8-3 branch end if that plant is the last one in the section.
5. Use the 8-8-8 tee to split the line into two and the 8-8 elbow for turns.
6. Join straight sections with the 8-8 fitting and check for leaks.