Elbow 50mm EG PPRc

Description

Elbow 50mm

 

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What is Elbow 50mm EG PPRc ?

An Elbow 50mm EG PPRc PN 25 is a 90-degree elbow fitting made from Polypropylene Random Copolymer (PPRc), designed for connecting pipes in plumbing systems.

The “EG” likely refers to a specific brand or type (e.g., from manufacturers like Ekoplast or similar), while “50mm” indicates the nominal diameter (internal bore size).
PN 25 denotes a Pressure Nominal rating of 25 bar (about 362 psi), meaning it can withstand up to 25 bar of pressure at 20°C, making it suitable for high-pressure applications.
This fitting is commonly used in HVAC (Heating, Ventilation, and Air Conditioning) systems and for hot and cold water supply lines, including potable water distribution, radiator heating, and underfloor heating.
PPRc material is lightweight, corrosion-resistant, and has excellent thermal stability, allowing it to handle temperatures up to 95°C for hot water and down to freezing for cold water without cracking. It’s a socket fusion type fitting, where pipes are melted and joined for a leak-proof seal.

Specifications

• Material: Polypropylene Random Copolymer (PPRc) – a thermoplastic polymer with enhanced crystallinity for better strength and heat resistance.
• Diameter: 50mm (nominal internal diameter; outer diameter is typically around 63mm for standard PPR pipes).
• Pressure Rating: PN 25 (25 bar at 20°C; derates to about 10 bar at 95°C for hot water applications).
• Temperature Range: -20°C to +95°C (suitable for cold water, hot water up to 95°C, and heating systems).
• Standards Compliance: Meets EN ISO 15874 or similar international standards for PPR piping systems (e.g., DIN 8077/8078 for pipes, and fittings standards like EN 12201 for water supply).
• Dimensions: Elbow angle: 90°; Wall thickness: Approximately 5.8mm (for PN 25); Length: Varies by manufacturer, but typically compact for easy installation.
• Certifications: Often NSF/ANSI 61 certified for potable water contact, ensuring no leaching of harmful substances.
• Color: Usually white or gray for visibility in installations.
• Weight: Lightweight (around 0.2-0.3 kg per fitting, depending on exact specs).
• Additional Properties: High chemical resistance (to acids, bases, and salts); Low thermal conductivity; Noise-dampening; UV-resistant for outdoor use if specified.

These specs ensure durability, with a lifespan of 50+ years under normal conditions, backed by manufacturer warranties and testing data from bodies like KIWA or DVGW.

Installation

PPRc fittings like this elbow are installed using socket fusion welding, which requires specialized tools and is best done by certified plumbers. Here’s a step-by-step guide:

1. Preparation: Cut the PPR pipe to the required length using a pipe cutter or saw. Ensure the cut is square and burr-free. Clean the pipe ends and fitting sockets with a deburring tool.

2. Heating: Use a socket fusion welding machine (heater) set to the correct temperature (typically 260-280°C for PPRc). Heat both the pipe end and the fitting socket simultaneously for 5-15 seconds (time depends on pipe diameter; for 50mm, about 10-12 seconds).

3. Joining: Quickly remove from the heater and insert the pipe into the fitting socket until it bottoms out. Hold firmly without twisting for 10-20 seconds to allow cooling and fusion. Avoid moving the joint for at least 5 minutes to prevent deformation.

4. Cooling and Testing: Let the joint cool completely (about 10-15 minutes). Pressure-test the system with water or air to check for leaks (e.g., at 1.5x working pressure).

5. Safety Notes: Work in a well-ventilated area; wear gloves and eye protection. Do not use open flames near the installation. For HVAC systems, ensure compliance with local building codes (e.g., ASME or EN standards). If installing in high-pressure lines, use expansion joints to account for thermal expansion (PPR expands about 0.15mm/m per °C).