Male Socket 25×1/2″ EG PPRc

Description

Male Socket 25×1/2″

 

Brass Female Adaptor (threaded) pn 25 for HVAC and hot and cold water supply Male Socket 25×1/2″ dealer in Pakistan contact 0321-2248975

 

What is Male Socket 25×1/2″ EG PPRc ?

 

The “EG” stands for Embedded Galva (or Electro-Galvanized), referring to the metal-threaded insert that provides mechanical strength and prevents the plastic threads from stripping or leaking under high torque.

---

1. Technical Specifications

This fitting is rated for high-stress environments, particularly those involving high-rise plumbing or industrial HVAC.

Feature	Specification
Material	Polypropylene Random Copolymer (PPRc) Type 3
Metal Insert	High-grade Brass or Electro-Galvanized (EG) Steel
Size (Plastic x Thread)	25mm (Socket) x 1/2″ (Male Thread)
Pressure Rating	PN 25 (2.5 MPa / 25 Bars)
Temperature Resistance	$-20^{\circ}C$ to $+95^{\circ}C$ (Short peaks up to $110^{\circ}C$)
Standards Compliance	DIN 8077/78, EN ISO 15874
Service Life	50+ Years at rated temperature and pressure

---

2. Description & Key Features

• Transition Strength: The male threaded metal insert is deeply embedded into the PPRc body during injection molding, ensuring it won’t pull out or rotate when tightened.

• High Pressure (PN 25): While PN 20 is standard for many homes, PN 25 offers a thicker wall and higher safety margin, making it the preferred choice for HVAC chilled water and high-pressure pumps.

• Non-Corrosive: The PPRc exterior is immune to rust and chemical reactions from concrete or soil, while the internal metal insert is typically treated to resist dezincification.

• Low Friction: The smooth internal bore prevents lime scaling and ensures maximum water flow.

---

3. Usage & Applications

• HVAC Systems: Connecting branch lines to fan coil units (FCUs) or radiators.

• Hot/Cold Water Supply: The primary fitting used to connect PPRc piping to washbasin mixers, shower valves, or water heaters.

• Compressed Air: Used in industrial settings for pneumatic lines due to its high pressure rating.

• Solar Systems: Connecting solar collector manifolds to the main distribution network.

---

4. Installation & Welding Guide

The connection involves two distinct steps: Heat Fusion for the plastic side and Mechanical Threading for the metal side.

1. Cutting: Use a PPRc pipe cutter to make a square cut on the 25mm pipe.

2. Heating: Set your welding machine to $260^{\circ}C$.

   • Push the 25mm pipe and the plastic end of the socket onto the heating dies.

   • Heating Time: Hold for 7 seconds.

3. Joining: Pull them off and push the pipe into the socket immediately. Hold for 15–20 seconds without twisting.

4. Threading: * Apply PTFE (Teflon) tape to the 1/2″ male threads of the fitting.

   • Caution: Avoid using natural hemp fiber; if it absorbs water, it can swell and exert internal pressure that might crack the metal insert over time.

   • Hand-tighten first, then use a wrench for a final half-turn. Do not overtighten.