Reducer Socket 63x25mm RAKtherm PPRc

RAKtherm Reducer Socket 63x25mm PPRc PN25 – UAE Import
Used for hot & cold water and HVAC water supply systems. RAKtherm is a UAE-based PPR manufacturer, and this fitting is commonly distributed across GCC and MENA regions.

1. Product Description

What it is
A PPR reducing socket connects two Polypropylene Random Copolymer pipes of different diameters — in this case 63mm to 25mm — while keeping a leak-proof, fused joint.

Material
Made from Polypropylene Random Copolymer Type 3 (PPRc), food-grade and non-toxic. PPRc is known for high resistance to corrosion, chemicals, deposits, and scaling. It’s healthy and safe for drinking water.

Pressure Rating: PN25
PN25 means the fitting is rated for 25 bar nominal pressure at 20°C. PN25 is the heavy-duty grade for PPR, used for hot water, HVAC, and high-pressure applications.

RAKtherm Specifics
RAKtherm is a German-engineered, UAE-manufactured brand. RAKtherm PPR systems meet DIN 8077/8078 and DIN EN 15874 standards. Warranty on RAKtherm PPR is typically 30 years in the Saudi/GCC market.

2. Key Specifications – 63x25mm Reducer Socket

3. Installation Method – Socket Fusion

PPR fittings like this are joined by socket fusion welding, not threading or gluing.

Tools needed: PPR welding machine with 63mm and 25mm dies, pipe cutter, reamer/deburrer, measuring tape, marker, clean cloth.

Steps:

1. Cut: Cut both 63mm and 25mm pipes square. Remove burrs.
2. Mark: Mark the welding depth on each pipe end.
3. Heat: Set fusion machine to ∼260°C. Heat the socket and pipe end simultaneously using correct dies.
   • Typical heating time: 63mm ≈ 24 sec, 25mm ≈ 7 sec. Check RAKtherm table.
4. Join: Push pipe into socket axially without twisting. Hold for cooling time.
5. Cool: Allow joint to cool completely before pressure testing.
6. Test: Pressure test to 1.5x working pressure for 1000+ hours per DIN. RAKtherm tests to 4000+ hours.

Key notes:

• Ensure pipes are clean and dry.
• Use same brand PPR for pipe + fitting to ensure material compatibility.
• No cement or glue used — fusion creates monolithic, leak-proof joint.

4. Usage & Applications

1. Potable Water Supply: Safe for drinking water hot & cold lines.
2. HVAC: Chilled water and heating circuits due to PN25 rating and 100°C tolerance.
3. Transition Fitting: Steps down from 63mm main line to 25mm branch line. Common in risers, headers, and distribution.
4. Residential/Commercial/Industrial: Used where pipe size reduction is needed.
5. Irrigation & Greenhouse: Also used in pressurized irrigation systems.

Advantages over metal:

• No corrosion or rust
• Lightweight = faster install
• Low heat loss = energy efficient for hot water
• Smooth bore = no scaling, consistent flow

5. Important Selection Tips

1. PN Rating: PN25 is for hot water & high pressure. For cold water only, PN10/PN16 is cheaper, but PN25 gives future-proofing.
2. UV Exposure: If pipes are exposed to sunlight, use RAKtherm “UV tubes” or insulate.
3. Expansion: PPR expands more than metal. Use expansion loops/offsets in long runs.
4. Sizing: 63x25mm means 63mm OD to 25mm OD. Check if your 25mm is 1/2″ or 3/4″ nominal — 25mm PPR ≈ 3/4″