Description
Elbow 40mm
RAKtherm imported PPRc, Food graded third generation Poly propylene Random with Co-polymer
materials. contact 0322-3540656
What is Elbow 40mm RAKtherm PPRc ?
the RAKtherm PPRc $40\text{ mm}$ 90° (or 45°) Elbow (PN25) is a heavy-duty, high-pressure thermofusion fitting designed for commercial and residential hot and cold water distribution, high-pressure booster systems, and mechanical HVAC loops.
Manufactured by RAKtherm in the UAE, this $40\text{ mm}$ (approx. $1\frac{1}{4}$” equivalent pipe size) fitting is engineered with Polypropylene Random Copolymer (PPR-80) to deliver a leakage-free, lifetime-durable piping network.
1. Description & Core Applications
The $40\text{ mm}$ elbow acts as a robust directional joint in medium-capacity plumbing manifolds and HVAC terminal connections. Rated at PN25, this heavy-wall fitting provides an extra margin of safety against surge pressures (water hammer) and elevated thermal stresses.
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Hot & Cold Water Systems: Widely used for potable main supply lines, apartment risers, and boiler output manifolds.
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HVAC Systems: Excellent for hydronic heating, fan coil unit (FCU) connection loops, and condenser water supply lines.
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Direct Fusion: Fuses seamlessly with RAKtherm PPRc pipes to create a homogenous plastic joint that is physically stronger than the pipe itself.
2. Technical Specifications Elbow 40mm RAKtherm PPRc
| Feature | Specification |
| Brand / Origin | RAKtherm (United Arab Emirates) |
| Material | Premium PPRc (Polypropylene Random Copolymer Type 3) |
| Nominal Outer Diameter ($d$) | $40\text{ mm}$ |
| Pressure Class | PN25 (SDR 5 – High Pressure / Heavy Wall Thickness) |
| Working Temperature | Continuous up to $70^\circ\text{C}$ (Peak short-term limits up to $95^\circ\text{C}$) |
| Corrosion Resistance | 100% rustproof, scale-resistant, and chemically inert |
| Applicable Standards | DIN 8077/8078, EN ISO 15874, DVGW, SKZ |
3. Installation Protocol (Socket Fusion)
Because $40\text{ mm}$ PPRc has a moderate wall thickness, strict adherence to heating and cooling times is vital to prevent the molten core from restricting the internal diameter of the pipe during insertion.
Step-by-Step Installation:
4. Usage & Engineering Guidelines
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Chilled Water Condensation: In HVAC water supply lines running chilled water, wrap the $40\text{ mm}$ PPRc pipe and the elbow in closed-cell elastomeric foam insulation to prevent surface sweating/condensation.
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Hanger Spacing: Support horizontal $40\text{ mm}$ PPRc lines to prevent sagging. For systems carrying warm fluids ($50^\circ\text{C}$), place structural pipe support hangers roughly every $1.1\text{ to }1.2\text{ meters}$.
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Expansion Loops: When building long, uninterrupted runs of hot water lines, utilize standard “L-bends” or “U-loops” to absorb thermal expansion and contraction saf
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