Dadex Nikasi upvc Elbow 75mm

Description

Elbow 75mm

 

Dadex Nikasi local Distributor Suppliers in Islamabad Pakistan Contact 0322-3540656  uPvc  Pressure Fittings, Drain sewer ventilation

 

What is Dadex Nikasi upvc Elbow 75mm ?

 

Dadex Nikasi UPVC Elbow 75mm is a key fitting from Dadex Eternit Limited’s Nikasi range, a leading uPVC (un plasticized Polyvinyl Chloride) system in Pakistan for soil, waste, and vent (SWV) applications, including drainage, sewer, and ventilation systems.

Description

The Nikasi Elbow 75mm is a 90-degree bend (or sometimes specified as 45-degree variants) used to change the direction of pipe runs in plumbing systems. It connects 75mm diameter uPVC pipes.

Dadex Nikasi offers fittings in two main jointing types:

• Solvent cement joint (solvent weld/glued) — permanent, chemical-bonded connection.
• Push-fit / rubber ring joint (also called rubber ring or R/R joint) — easy, no-glue installation with a rubber seal for watertight fit, allowing some flexibility.

These are non-pressure fittings optimized for gravity-fed drainage (not high-pressure water supply like Aquadex series). They handle typical internal pressures from waste flow, vent stacks, and drainage heads in buildings. Common variants include standard elbows, plug elbows (with access/cleanout plug), and access bends.

Material: High-quality uPVC compound, grey color (standard for SWV systems), lightweight, durable, and corrosion-resistant.

Usage and Applications

Primarily for Soil, Waste, and Vent (SWV) systems:

• Drainage — Carrying wastewater from toilets (soil), sinks, showers, and other fixtures (waste).
• Sewer — Part of building drainage networks leading to main sewers.
• Ventilation — Vent stacks/pipes to equalize air pressure, prevent siphonage, and allow gases to escape safely.
• Also suitable for rainwater downpipes in some cases.

Advantages:

• Low flow resistance (smooth interior).
• Corrosion-free and chemical-resistant.
• Resistant to organic growth/bacterial buildup.
• Lightweight and easy to handle/install.
• Long service life with no rust or scaling.

Not intended for pressurized potable water supply or underground sewer mains (Dadex has separate Flowline system for that).

Specifications

• Size: 75mm nominal diameter (common in Nikasi range: 40mm, 50mm, 75mm, 110mm, 160mm, 200mm).
• Standards/Conformance:
  • Pipes: ISO 3633:2002(E) / EN 1329:1999 and PS 3214:1992 (Pakistan).
  • Fittings (solvent cement joints): ISO 3633:2002(E) / EN 1329:1999.
  • Fittings (rubber ring joints): Compatible with ISO/EN standards for SWV.
• Pressure Rating: Non-pressure / gravity systems — designed for SWV drainage (handles typical head pressures in vent stacks and high-rise drainage, but not classified as pressure pipe like Class ratings in water supply).
• Temperature Resistance: Suitable for hot/cold waste up to typical sanitary discharge temperatures (uPVC generally up to ~60°C continuous).
• Jointing Options: Solvent cement (permanent) or push-fit rubber ring (dismantleable if needed).

Installation

1. Preparation:
   • Cut pipe ends square and deburr/chamfer using appropriate tools.
   • Clean pipe and fitting socket with cleaner/primer if using solvent joint.
2. Solvent Cement Joint:
   • Apply Dadex-approved uPVC solvent cement evenly to pipe end and fitting socket.
   • Quickly insert pipe fully into socket with twist (1/4 turn) and hold for a few seconds.
   • Allow curing time per cement instructions (usually minutes to hours depending on temperature).
   • Permanent — not easily reversible.
3. Push-Fit / Rubber Ring Joint:
   • Ensure rubber ring is properly seated in the fitting’s groove.
   • Lubricate pipe end and ring with approved lubricant (soap water or silicone-based, avoid petroleum).
   • Push pipe firmly into socket until it seats fully (may need some force).
   • Easier and faster, allows minor adjustments or disassembly.
4. General Tips:
   • Support pipes adequately to prevent sagging.
   • Use access fittings (like plug elbows or inspection bends) at changes in direction for cleaning.
   • Follow local plumbing codes (e.g., in Pakistan, align with building regulations for SWV).
   • Install in dry conditions for solvent joints; avoid extreme cold/heat during curing.