Description
upvc Elbow 200mm
Dadex Nikasi local Distributor Suppliers in Islamabad Pakistan Contact 0322-3540656 Pressure Fittings, Drain sewer ventilation
What is Dadex Nikasi upvc Elbow 200mm ?
Dadex Nikasi is a premium brand of un plasticized polyvinyl chloride (UPVC) pipes and fittings manufactured by Dadex Eternit Limited, a leading Pakistani company specializing in plastic piping solutions for plumbing, drainage, and industrial applications. The UPVC Elbow 200mm is a 90-degree bend fitting designed for solvent joint (solvent weld) and push-fit (rubber ring joint) connections, primarily used in pressure-rated drain, sewer, and ventilation (DSV) systems. It facilitates smooth directional changes in pipelines while maintaining structural integrity under pressure.
This fitting complies with international standards like BS EN 1401-1, ASTM D 3034, and ISO 4435, ensuring durability, corrosion resistance, and leak-proof performance. It’s ideal for underground sewerage, stormwater drainage, and ventilation systems in residential, commercial, and municipal projects.
Key Specifications
| Parameter | Details |
|---|---|
| Nominal Diameter (DN) | 200 mm (8 inches) |
| Bend Angle | 90° (standard elbow; 45° variants available) |
| Material | UPVC (un plasticized polyvinyl chloride), UV-stabilized |
| Joint Types |
|
| Pressure Rating | PN 10 (10 bar / 145 psi) for pressure applications; suitable for gravity flow up to 0.5 bar |
| Wall Thickness | Minimum 6.0–7.5 mm (varies by class; typically Class 10 or S4/S5 for DSV) |
| Outside Diameter (OD) | 200 mm (external) |
| Length/Weight | Approx. 250–300 mm socket depth; 2.5–3.5 kg per unit |
| Operating Temperature | 0°C to 60°C (continuous); short-term up to 80°C |
| Standards Compliance | BS 4660, BS EN 1329-1 (DSV), AS/NZS 1260; ISI-marked (Pakistan Standards) |
| Color | Light grey or white (standard for DSV) |
| Pack Quantity | Typically sold individually or in sets of 10–20 |
Note: Exact specs may vary slightly by batch or region; always refer to Dadex’s official catalog or packaging for project-specific data.
Detailed Description
-
Design Features:
- Smooth internal bore reduces flow resistance and prevents clogging.
- Thick-walled construction for high impact resistance and longevity (50+ years service life).
- Dual-joint compatibility: Solvent weld for rigid, high-pressure joints; push-fit for flexible, maintenance-friendly installations.
- Integral spigot and socket ends with chamfered edges for easy insertion.
- Resistant to chemicals, abrasion, and root penetration.
-
Pressure Classes (for DSV applications):
| Class | Application | Max Pressure |
|---|---|---|
| S4 | Gravity sewer/drain | 0.5 bar |
| S5 | Sewer with slight pressure | 1.0 bar |
| PN6 | Low-pressure drain | 6 bar |
| PN10 | Medium-pressure sewer/vent | 10 bar |
Usage and Applications
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Primary Uses:
- Drainage & Sewer Systems: Connects UPVC pipes in underground networks for wastewater, sewage, and storm water.
- Ventilation (Soil & Waste): Directs vent pipes in building plumbing to prevent gas buildup.
- Pressure Piping: For pumped sewer lines or industrial effluents under pressure.
- Common in housing societies, hospitals, factories, and municipal infrastructure.
-
Installation Guidelines:
- Preparation: Cut pipes square, chamfer edges, clean sockets.
- Solvent Weld: Apply Dadex-recommended solvent cement (e.g., purple primer + cement). Insert spigot fully, hold for 30 seconds. Cure time: 15–30 min (full strength in 24 hrs).
- Push-Fit: Lubricate rubber ring and spigot with soap solution. Push until fully seated (audible click). No adhesives needed.
- Support: Space supports every 1–1.5 m; use concrete encasement for traffic areas.
- Testing: Hydrostatic test at 1.5x operating pressure for 10 mins (no leaks).
- Tools Needed: Pipe cutter, deburring tool, solvent applicator (for weld); no special tools for push-fit.
- Precautions: Avoid over-tightening; not for hot water (>60°C) or potable supply (use uPVC pressure pipes instead).
-
Advantages:
- Lightweight (1/6th weight of concrete/DI pipes) for easy handling.
- Cost-effective: 40–50% cheaper installation than metal alternatives.
- Eco-friendly: 100% recyclable, no rust or scaling.





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