Kohinoor Sink Waste PVC Pipe,32mm

Product Highlights

• Manufacturer: Kohinoor Impex — Trusted PVC Plumbing Solutions Since 1985
• Model: Sink Waste PVC Flexible Pipe — 32mm × 750mm
• Pipe Diameter: 32mm (1.25 inch) nominal | 30mm internal flow diameter
• Length Range: 500mm compressed to 750mm fully extended
• Design: Pull-type expandable/contractible flexible pipe
• Material: High-grade PVC — chemical resistant, off-white/cream colour
• Connections: Brass nut fittings at both ends
• Application: Kitchen sinks, wash basins, urinals, utility sinks
• Warranty: Kohinoor Impex manufacturer quality assurance

Product Description

Kohinoor Sink Waste PVC Pipe 32mm is a pull-type flexible waste pipe from Kohinoor Impex — a manufacturer with over 40 years of PVC plumbing product experience since 1985. The pipe is sized at 32mm (1.25 inch) nominal diameter with a 30mm internal flow bore, and extends from a compressed length of 500mm up to a fully extended 750mm — giving the installer a 250mm range of adjustment to accommodate varying distances between the basin waste outlet and the P-trap or drain connection without cutting or fitting additional sections. The brass nut fittings at both ends provide a leak-proof, corrosion-resistant threaded connection to standard 32mm waste fittings used across Indian residential and commercial plumbing systems.

The pull-type expandable design is the primary advantage over a rigid waste pipe section — in under-sink and under-basin installations, the exact distance between the waste outlet and the trap or wall drain inlet varies based on cabinet depth, countertop thickness, and drain positioning. A rigid pipe requires precise cutting and fitting; the Kohinoor flexible pipe simply extends or compresses to the required length and routes around minor obstructions without kinking, saving installation time and eliminating the need for additional fittings. The high-grade PVC body resists household chemicals, detergents, and organic waste, and maintains flexibility across its operational temperature range of 5°C to 60°C — suitable for the hot water drainage from kitchen sinks that standard flexible pipes sometimes soften and deform under.

Technical Specifications

Installation Guidelines

Recommended Applications

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FAQs

1) What does "pull-type" mean, and how is it different from a rigid waste pipe?

A pull-type flexible waste pipe is made with a concertina (accordion) corrugated body that can be extended or compressed within its length range — in this case 500mm to 750mm — without cutting. A rigid waste pipe is a fixed-length straight or pre-bent section that must be cut precisely to fit and requires elbow fittings for any directional change. The pull-type design saves installation time significantly in under-sink situations where the distance between the waste outlet and the trap varies, and allows the pipe to bend gently around minor obstructions without additional fittings.

2) Can this pipe handle hot water from a kitchen sink or dishwasher?

Yes — the Kohinoor 32mm waste pipe is rated for operational temperatures up to 60°C, which covers the hot water drainage from standard kitchen sinks, hand-wash basins, and domestic dishwashers (dishwasher drain water is typically 45–55°C). Lower-grade flexible waste pipes using softer PVC formulations can soften and deform under sustained hot water drainage, causing the pipe to sag and lose its trap seal depth. The high-grade PVC in this pipe maintains dimensional stability within its rated temperature range.

3) Is this pipe compatible with my existing basin trap and drain connections?

Yes — the 32mm standard diameter with brass nut connections at both ends is compatible with all standard Indian residential and commercial 32mm waste fittings including bottle traps, P-traps, S-traps, and wall drain inlets. If your existing trap or drain connection uses a different diameter (typically 40mm for larger kitchen sinks), the 32mm pipe will not fit directly — confirm your waste outlet and trap size before ordering. In new installations, the plumber will determine the correct size from the basin waste specification.

4) How do I prevent leaks at the brass nut connections?

Apply PTFE thread seal tape (plumber's tape) to the brass nut threads before connecting — wrap 3–4 turns in the direction of the thread. Hand-tighten the brass nut first, then snug firmly with pliers or a spanner. Do not overtighten — the PVC pipe body at the brass nut junction can crack if excessive torque is applied. After connecting, run water at full flow for 60 seconds and inspect both joints carefully — a correctly sealed brass nut connection should be completely dry. If a slow drip appears, tighten a quarter-turn at a time until it stops.

5) How is Kohinoor different from generic unbranded flexible waste pipes available at lower prices?

Generic unbranded flexible waste pipes frequently use softer, lower-grade PVC that deforms under hot water, yellows and becomes brittle within 1–2 years, and has plastic push-fit connections that leak under normal water pressure variation. Kohinoor Impex has manufactured PVC plumbing products since 1985 and uses high-grade PVC with brass nut connections — brass resists corrosion and provides a mechanically secure threaded seal that plastic connections cannot match. For an under-sink waste pipe that will be accessed infrequently and expected to perform leak-free for years, the Kohinoor product offers meaningfully better reliability at a modest price premium over unbranded alternatives.

Returns & Exchange Policy

1. Return within 24 hours of delivery for:
   • Damaged or defective product
   • Wrong or missing item
2. Product cannot be returned once installed or used
3. Refer to Refund Policy for complete details