Reducing Tee 50x25mm EG PPRc

Description

Reducing Tee 50x25mm

 

EG , PPRc, Food graded third generation Poly propylene Random with Co-polymer materials. Sizes ranging from 25mm to 110mm diameter. 0321-2248975

 

What is Reducing Tee 50x25mm EG PPRc ?

 

A Reducing Tee 50x25mm EG PPRc PN25 is a high-pressure thermoplastic fitting used to create a branch in a piping system where the main line is 50mm and the branch line is reduced to 25mm.

The “EG” typically refers to the brand (e.g., Euro Gulf or similar high-standard Middle Eastern manufacturers), and PN25 signifies its high-pressure rating, making it suitable for demanding HVAC and hot water applications.

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1. General Description

• Material: Polypropylene Random Copolymer (PPRc) Type 3.² This material is chosen for its high resistance to chemical corrosion and its ability to handle high temperatures without losing structural integrity.

• Configuration: It is an Unequal Tee. The two main “run” ends are 50mm, while the perpendicular “branch” outlet is 25mm.

• Pressure Rating (PN25): Rated for a nominal pressure of 25 bar (approx.⁴ 362 PSI) at a reference temperature of 20°C.

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2. Technical Specifications

PPRc fittings are generally manufactured according to DIN 8077/8078 or ISO 15874 standards.

Feature	Specification
Size	50mm (Main) x 25mm (Branch) x 50mm (Main)
Pressure Class	PN 25 (SDR 5)
Temp. Range	-20°C to +95°C (Ideal for hot water/heating)
Connection Type	Socket Fusion (Heat Welding)
Color	Usually Green (standard) or White/Grey depending on the brand
Service Life	50+ years under recommended operating conditions

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3. Usage & Applications

• HVAC Systems: Used in Chilled Water Systems and Hydronic Heating.⁷ The PN25 rating is excellent for high-rise buildings where static pressure is high.

• Water Supply: Ideal for Potable Hot and Cold Water distribution.⁹ It is often used to branch off a main floor riser (50mm) to individual fixture lines (25mm).

• Industrial: Transporting compressed air or aggressive fluids that would otherwise corrode metallic pipes.

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4. Installation (Heat Fusion Process)

PPRc fittings do not use glue or threads.

1. Preparation: Cut the 50mm and 25mm pipes square. Clean the pipe ends and the inside of the tee with a dry cloth to remove dust or moisture.

2. Heating: Set the welding machine to 260°C (500°F).¹¹ Insert the 50mm pipe and the 50mm side of the tee into the heating dies simultaneously.

3. Heating Time: For a 50mm pipe, heat for approximately 18–20 seconds. For the 25mm branch, heat for about 7 seconds.

4. Joining: Remove from the dies and immediately push the pipe into the fitting without twisting.

5. Cooling: Hold the joint steady for 30 seconds. Allow it to cool completely (about 5–10 minutes) before applying pressure.

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5. Why Choose PN25 for HVAC?

• Thermal Expansion: PN25 (SDR 5) has thicker walls than PN16 or PN20, providing better resistance to the thermal stresses caused by constant cycling between hot and cold in HVAC systems.

• Leak-Proof: Because the fusion process creates a homogenous bond (the pipe and fitting become one single piece of plastic), the risk of leaks at the joints is virtually zero if welded correctly.¹²