Description
EG PPRc Female Socket 50×1-1/2″
Brass Female Adaptor (threaded) EG PPR Food grade , Fittings pn 25 for HVAC and hot and cold water supply dealer supplier contact 0321-2248975
What is Female Socket 50×1-1/2″ EG PPRc ?
Description
The Female Socket 50×1-1/2″ EG PPRc PN 25 is a PPR (Polypropylene Random Copolymer, also known as PP-RC or PPRC) pipe fitting. It is a female threaded adapter (also called female coupling or female socket) designed to transition from a 50mm diameter PPR pipe to a 1-1/2 inch female threaded connection (typically BSP or similar standard threads).
- One end is a socket for fusion welding to a 50mm PPR pipe.
- The other end has internal (female) threads with brass insert for durability, allowing connection to a male threaded component (e.g., valve, pump, metal pipe, or fixture).
“EG” likely refers to a brand, series, or “electro-galvanized”/specific coating, but commonly it’s a designation for the fitting type in certain manufacturers. PN 25 indicates a pressure rating of 25 bar (approximately 362 PSI) at 20°C, suitable for high-pressure systems.
This fitting is widely used in modern plumbing for its corrosion resistance, longevity, and leak-proof performance.
Specifications
- Material: Polypropylene Random Copolymer (PPR-C Type 3) body with brass threaded insert.
- Size: 50mm (PPR socket end) x 1-1/2″ (female threaded end).
- Pressure Rating: PN 25 (maximum working pressure 25 bar at 20°C; derates at higher temperatures).
- Temperature Range: Typically -20°C to +110°C (or up to 95°C continuous for hot water, depending on manufacturer; short-term up to 110°C).
- Standards: Often compliant with DIN 8077/8078, DVGW, or ASTM F2389.
- Color: Commonly green, white, or grey.
- Features:
- Food-grade and non-toxic.
- Resistant to corrosion, chemicals, and scale buildup.
- Low thermal conductivity (good insulation).
- High impact resistance.
- Expected lifespan: 50+ years under proper conditions.
Usage and Applications
This fitting is primarily used in hot and cold water supply systems, including:
- Residential and commercial plumbing.
- Potable (drinking) water distribution.
- Heating systems (radiators, underfloor heating).
- HVAC applications (chilled water lines, hot water circulation in air conditioning systems).
- Industrial fluid transfer (non-aggressive fluids).
It enables seamless integration of PPR piping with threaded metal components (e.g., connecting PPR lines to boilers, pumps, tanks, or existing metal plumbing). PPR systems are preferred over metal pipes for their hygiene, energy efficiency (reduced heat loss), and ease of installation.
Not suitable for compressed air, gas, or highly aggressive chemicals without verification.
Installation
PPR fittings like this are installed using socket fusion welding (heat fusion) on the PPR side, while the threaded end is screwed in (with appropriate sealing).
Tools Required
- PPR pipe cutter.
- PPR fusion welding machine (with 50mm dies).
- Marker, cleaner/degreaser.
- Pipe reamer (if needed).
- Thread sealant (PTFE tape or thread compound) for the threaded end.
Step-by-Step Guide
- Preparation:
- Cut the 50mm PPR pipe squarely (90° angle) using a pipe cutter.
- Mark the welding depth on the pipe end (typically 18-20mm for 50mm size; check manufacturer template).
- Clean the pipe end and fitting socket with recommended cleaner to remove dirt/oil.
- Heating:
- Preheat the fusion machine to 260°C (500°F).
- Insert the pipe into the male die and the fitting socket into the female die simultaneously.
- Heat for the recommended time (for 50mm: approximately 18-25 seconds; exact times vary by machine/brand—do not rotate).
- Joining:
- Quickly remove from the dies and insert the pipe straight into the fitting socket (up to the mark) without twisting.
- Hold firmly for 10-20 seconds to set.
- Allow to cool fully (5-10 minutes) before handling or pressurizing.
- Threaded Connection:
- Apply thread sealant (PTFE tape) to the male threads of the connecting component.
- Screw into the female threaded end of the fitting hand-tight, then tighten with a wrench (do not overtighten to avoid damaging brass insert).
- Testing:
- After full cooling, pressure test the system gradually for leaks.
Safety Notes:
- Work in a ventilated area; avoid inhaling fumes.
- Use gloves—parts get very hot.
- Follow exact heating times to prevent weak joints or material damage.
- Professional installation recommended for critical systems.



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