Description
Reducing Tee 110x63mm
DADEX , PPRc, Food graded third generation Poly propylene materials. Sizes ranging from 25mm to 110mm diameter. supplier contact 0322-3540656
What is Reducing Tee 110x63mm Dadex PPRc ?
A Reducing Tee 110×63 mm Dadex PPRc PN 25 is a pipe fitting made of PPRc (Polypropylene Random Copolymer) used to:
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Branch a main piping line into a smaller diameter outlet.
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Connect 3 pipes — two of one size (110 mm) and one of a reduced size (63 mm).
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This is called a reducing tee because one of the three connections is a smaller diameter.
Key points:
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“110×63 mm” denotes that it connects a 110 mm pipe to a 63 mm pipe.
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PN 25 means the fitting is rated for up to 25 bar (≈ 362 psi) of pressure at 20 °C, suitable for high-pressure applications.
This fitting is specifically used in HVAC (heating, ventilation, air conditioning) systems and hot/cold water supply piping.
🧱 Material & Standards
Material:
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Made of PPRc (Polypropylene Random Copolymer) — a durable thermoplastic engineered for pressure piping.
Why PPRc?
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Resistant to heat and pressure.
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Corrosion-free (won’t rust like metal pipes).
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Smooth interior for better flow and less friction.
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Long service life (typically 50+ years).
Common Standard:
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Most PPRc fittings are manufactured per DIN 16962 (international standard for PPR fittings) and rated PN 25.
📊 Specifications (Typical)
| Property | Detail |
|---|---|
| Fitting Type | Reducing Tee |
| Size | 110 mm × 63 mm |
| Material | PPRc (Polypropylene Random Copolymer) |
| Pressure Rating | PN 25 (25 bar at 20 °C) |
| Temperature Range | Typically up to ~95 °C (short-term) and ~70 °C (continuous) |
| Connection Type | Socket fusion joint (heat fusion) |
| Color | Usually green (industry standard) |
Note: Exact specs for the Dadex brand may vary slightly but follow the same PN 25 rating and PPRc standards.
🧩 Description & Features Reducing Tee 110x63mm Dadex PPRc
Structure:
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T-shaped fitting with three ports.
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Two ports match the main pipeline diameter (110 mm).
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One port matches the branch line diameter (63 mm).
Properties:
✅ High pressure and temperature resistance
✅ Corrosion / scale resistance
✅ Hygienic and safe for potable water
✅ Smooth internal flow
✅ Lightweight & durable
✅ Low thermal and electrical conductivity
Typical uses include:
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Domestic & commercial hot and cold water distribution.
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Branching to smaller lines (e.g., moving from a main supply to a sub-line).
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HVAC systems — hot water heating, chilled water distribution.
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Industrial fluid systems where corrosion resistance and pressure ratings matter.
🛠️ Installation
Tools Needed:
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PPR hot-fusion welding tool (heater with correct dies)
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Pipe cutter (for clean ends)
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Deburring tool or sharp knife
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Marker and measuring tape
Step-by-Step Installation:
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Measure & Cut Pipes:
Mark the pipes that will connect to the tee (110 mm main lines and 63 mm branch). Cut cleanly and squarely. -
Clean Pipe Ends:
Remove any burrs & dirt to ensure a tight joint. -
Heat Fusion Welding:
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Preheat fusion tool to the manufacturer’s recommended temperature (~260 °C typical).
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Insert the pipe end and the tee socket onto the heating tool simultaneously.
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Heat for the correct time (based on diameter).
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Join Pipes:
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Quickly insert the heated pipe into the fitting to full depth.
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Align and press gently — do not rotate.
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Hold until the plastic cools and sets (few seconds).
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Cooling & Support:
Let joints cool before pressurizing. Support piping to prevent stress. -
Testing:
Pressurize system and check for leaks according to local plumbing codes.
Safety Tips:
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Wear gloves and eye protection during welding.
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Avoid twisting joints while cooling.
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Allow expansion loops for long runs subject to temperature changes.
🚰 Usage in HVAC & Water Supply
In Water Supply Systems
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Main to branch connections: Diverts water from large distribution lines to smaller pipelines (e.g., to bathrooms or kitchen risers).
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Works for hot and cold potable water safely due to food-grade PPRc.
In HVAC Installations
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Branches heating or chilled water loops in HVAC piping.
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Good for both hydronic heating systems (hot water) and chilled water distribution.
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PPRc’s heat resistance makes it suitable for heating circuits up to ~95 °C.
Typical Projects:
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Residential apartments
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Commercial buildings
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Light industrial piping
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Fan coil units/air handlers water circuits




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