Cosmoplast uPVC & HDPE Pipes: Range, Sizes & Where to Use Each in the UAE

Cosmoplast is one of the UAE’s most established pipe manufacturers — part of the Harwal Group and producing thermoplastic piping systems from facilities in Sharjah, Dubai, and Abu Dhabi for over 60 years. Their uPVC and HDPE pipe range covers everything from drinking water supply and building drainage to large-diameter infrastructure and irrigation mains.

Dave Pools stocks Cosmoplast uPVC and HDPE pipes and fittings in Dubai, supplying contractors, consultants, and developers across the UAE. This guide covers the full range — what each product is designed for, the pressure classes and sizes available, the standards they’re manufactured to, and how to decide between uPVC and HDPE for your next project.

Who Is Cosmoplast?

Cosmoplast is the pipeline systems brand of the Harwal Group, widely recognised as one of the largest thermoplastic pipe manufacturers in the GCC. Founded over 60 years ago, the company operates manufacturing facilities in Sharjah, Dubai, and Abu Dhabi, producing a broad range of pressure and non-pressure piping systems for the construction, infrastructure, and industrial sectors.

Their product line covers uPVC, HDPE, PPR, CPVC, and PE-X pipe systems, all manufactured to EN, ISO, BS, DIN, and ASTM international standards. For UAE contractors, Cosmoplast pipes are a familiar specification on civil, MEP, and infrastructure tenders — and GCC manufacturing means no import duty on cross-border projects.

Cosmoplast Products Dave Pools Stocks

Dave Pools carries the core Cosmoplast pipeline range for UAE building, infrastructure, and irrigation projects. The table below shows what’s available, what it’s used for, and the standards it’s made to.

Product System	Key Applications	Standards
uPVC High-Pressure Pipes	Potable water supply, irrigation mains, pool plumbing	BS EN 1452, BS 3505, ASTM D1785
uPVC Pressure Fittings	Elbows, tees, couplers, reducers (inch + metric)	BS EN 1452-3, ASTM D2464/D2467
uPVC Drainage Pipes	Soil and waste, building drainage, SWR	BS EN 1329, BS 4514
uPVC Drainage Fittings	Bends, branches, access fittings	BS EN 1329
HDPE Pipes (PE100)	Water mains, irrigation trunks, infrastructure	ISO 4427-2, EN 12201
HDPE Fittings	Butt-fusion, electrofusion, compression	ISO 4427-3
uPVC Ball Valves	Isolation, flow control	BS EN 1452 compatible
Pipe Clamps & Supports	All pipe types	—

📥 Download the Cosmoplast HP Catalogue (PDF)

For product availability and bulk pricing, contact our sales team at sales@davepools.com or call +971 04 393 4806.

Cosmoplast uPVC High-Pressure Pipes & Fittings

Pipe Specifications

Cosmoplast uPVC high-pressure pipes are manufactured for pressurised water supply — potable water distribution, irrigation mains, pool plumbing, and industrial process lines. They’re made from unplasticised PVC compound, which gives them the dimensional stability and chemical resistance that pressure pipework needs in UAE conditions.

Key specifications:

• Standards: BS EN 1452-2, BS 3505:1986, BS 3506, ASTM D1785, ASTM D2241
• Pressure ratings: PN6, PN10, and PN16 (rated at 20°C)
• Size range: 20mm to 315mm (confirm exact stocked sizes with our team)
• Colour: Grey (standard); blue stripe variants available for potable water identification
• Wall thickness: Varies by PN class — PN16 pipes have substantially thicker walls than PN10 for the same diameter
• Certifications: BSI Kitemark (BS EN 1452 / BS 3505), WRAS, Intertek, Kiwa
• Length: 6m standard; cut lengths available
• Jointing: Solvent cement (Class E inch fittings); rubber-ring push-fit (metric series)

For guidance on choosing between PN10 and PN16 for your project, see our PN10 vs PN16 pressure rating guide and PN16 vs PN10 pipe pressure ratings comparison.

Fittings — Inch Series and Metric Series

Cosmoplast uPVC pressure fittings come in two series to match the two pipe sizing systems common on UAE projects:

Inch series (Class E to BS EN 1452-3):

• Sizes: ½” to 8″ (DN15 to DN200 approximate)
• Jointing: solvent cement (socket spigot)
• Pressure class: PN15 (Class E)
• Standards: BS EN 1452-3, ASTM D2464 (threaded), ASTM D2467 (socket)
• Types: elbows (90° and 45°), equal tees, reducing tees, couplers, reducers, end caps, unions, flanges

Metric series (PN16 to DIN 8063):

• Sizes: 20mm to 200mm
• Jointing: solvent cement
• Pressure class: PN16
• Standard: DIN 8063
• Types: same fitting family as inch series

For installation guidance, see our how to glue PVC pipe guide and uPVC pipes and fittings supplier page.

Cosmoplast uPVC Drainage Pipes & Fittings

Key Features

Cosmoplast uPVC drainage pipes are non-pressure pipes designed for soil and waste, building drainage, rainwater, and above-ground or buried gravity drainage systems. They carry grey and brown wastewater away from buildings and are a standard specification on residential, commercial, and hospitality projects across the UAE.

Key specifications:

• Standards: BS EN 1329-1 (soil and waste), BS 4514 (soil and ventilating pipes above ground)
• Colour: Grey or white depending on series
• Size range: 32mm to 160mm (above-ground SWR); larger diameters for underground drainage
• Wall construction: Solid wall; smooth bore for low-resistance flow
• Jointing: Rubber-ring push-fit socket (no solvent cement required for most drainage grades)
• Properties: Self-extinguishing, corrosion-free, low maintenance, UV-stabilised for above-ground UAE runs

Where Drainage Pipes Are Used

• Soil stacks and vertical waste pipes in multi-storey buildings
• Horizontal branch drainage from bathrooms, kitchens, and plant rooms
• Rainwater downpipes and flat-roof drainage
• Underground gravity drainage connections to inspection chambers
• Hotel, villa, and residential tower drainage systems

For a full breakdown of drainage pipe types and where each is used, see our types of drainage pipes guide and drainage pipes supplier page.

Cosmoplast HDPE Pipes & Fittings

Product Overview

Cosmoplast HDPE (High-Density Polyethylene) pipes are manufactured to ISO 4427-2:2007 and EN 12201 for pressurised water supply, irrigation trunk mains, and buried infrastructure. PE100 grade is the current standard for pressurised applications — it offers the highest long-term hydrostatic strength of any standard PE grade and is the material specified on most UAE civil and infrastructure tenders.

Dave Pools stocks Cosmoplast HDPE pipes and fittings in Dubai. Confirm your required sizes and pressure classes with our team before ordering, as specific stock availability varies by diameter and SDR class.

Key specifications:

• Material grade: PE100 (MRS 10.0 MPa)
• Standard: ISO 4427-2:2007; EN 12201; BS EN 1519-1 (drainage grade)
• SDR classes: SDR17 (≈PN10) and SDR11 (≈PN16) — most common for UAE water and irrigation projects
• Colour: Black (standard); black with blue stripe (potable water identification)
• Size range: 20mm–1,400mm manufactured (confirm stocked range with our team)
• Certifications: WRAS, Intertek, Kiwa, BSI (confirm current certificate numbers before specifying)
• Jointing: Butt fusion, electrofusion, compression fittings for smaller diameters, mechanical couplings

SDR and pressure class reference:

SDR Class	Approx. PN Rating	Typical UAE Application
SDR 17	PN10	Irrigation mains, gravity-fed distribution, low-pressure supply
SDR 13.6	PN12.5	General water distribution
SDR 11	PN16	Pressurised water mains, pump discharge lines
SDR 9	PN20	High-pressure industrial and pump applications

For more on SDR classes and how to read HDPE pipe ratings, see our SDR11 vs SDR17 guide, what is HDPE pipe complete guide, and HDPE pipes and fittings supplier page.

HDPE Fittings

Cosmoplast HDPE fittings are available in butt-fusion and electrofusion types for sizes from 63mm upward, and compression or mechanical couplings for smaller diameters:

• Butt fusion fittings: elbows (90° and 45°), equal and reducing tees, reducers, end caps, flanged stub ends
• Electrofusion fittings: couplers, elbows, tees, saddle fittings — used where a butt-fusion machine cannot be set up
• Compression fittings: for 20mm–63mm, tool-free connection, used in irrigation and meter connections
• Mechanical couplings: for repairs and connections to other pipe materials

Cosmoplast Pipes Catalogue: Sizes & Specifications

The Cosmoplast HP Catalogue covers the full range of uPVC and HDPE pipe systems — including dimensional tables, pressure class data, fitting series, and standards compliance.

📥 Download the Cosmoplast HP Catalogue (PDF)

Quick reference — uPVC pressure pipe sizes and standards:

Product Series	Size Range	Pressure Class	Standard	Jointing
uPVC High Pressure (Metric)	20mm–315mm	PN6, PN10, PN16	BS EN 1452-2, BS 3505	Solvent cement / rubber ring
uPVC High Pressure (Inch Class E)	½”–8″	PN15 (Class E)	BS EN 1452-3, ASTM D2467	Solvent cement
uPVC SWR Drainage	32mm–160mm	Non-pressure	BS EN 1329-1	Rubber-ring push-fit
uPVC SCH 80 Fittings	50mm, 75mm, 90mm	—	ASTM D2464/D2467	Solvent cement
HDPE Water (PE100)	20mm–1,400mm	PN10–PN20 (SDR17–SDR9)	ISO 4427-2, EN 12201	Butt fusion / electrofusion
HDPE Drainage	50mm–315mm	Non-pressure	BS EN 1519-1	Push-fit / butt fusion

Note: The above table is based on Cosmoplast’s manufactured range. Confirm which sizes and PN classes are in stock in Dubai with our team before ordering. Contact sales@davepools.com or call +971 04 393 4806.

For standard sizes and specifications across the broader PVC range, see our standard sizes of PVC pipe guide.

uPVC vs HDPE: Which Do You Need?

Both uPVC and HDPE are widely used on UAE projects — sometimes on the same site, in different zones. Here’s how to decide which is right for your application:

Requirement	uPVC	HDPE
Above-ground, UV-exposed runs	✅ UV-stabilised, dimensionally stable	⚠️ Black HDPE degrades with prolonged sun exposure
Buried water main (straight route)	✅ Suitable, rigid, many fittings	✅ Preferred — flexible, leak-free fusion joints
Trenchless / HDD crossing	❌ Not suitable	✅ Ideal — flexible enough for directional drilling
Swimming pool plumbing	✅ Standard choice for pool pipe runs	⚠️ Possible but less common; uPVC fittings more available
Building gravity drainage	✅ Standard — SWR systems, stacks, branches	❌ Not standard for drainage above ground
Irrigation trunk main (long run)	✅ For small to medium diameters	✅ Preferred for large-diameter mains
Chemical resistance (industrial)	✅ Good for most water and drainage	✅ Broader chemical resistance range
High-pressure pump discharge	✅ PN16 for most residential pumps	✅ SDR11 / PN16 for higher flows
Ground movement / settlement zones	⚠️ Rigid — needs careful bedding	✅ Flexible — absorbs ground movement
Budget-sensitive villa projects	✅ Lower installed cost on small diameters	⚠️ Fusion equipment adds cost on small diameters

A common approach on larger UAE projects is to use HDPE for the buried trunk main and uPVC for the laterals, branch connections, and above-ground sections — combining the leak-free performance of fused HDPE with the fitting availability and UV resistance of uPVC.

For a detailed comparison, see our PVC vs HDPE pipe guide.

Also in the Cosmoplast Range

Beyond uPVC and HDPE, Cosmoplast also manufactures PPR, CPVC, and PE-X pipe systems — covering hot water supply, fire sprinkler systems, and hydronic heating. Dave Pools stocks these alongside the uPVC and HDPE range. For a head-to-head look at Cosmoplast PPR against RAKtherm PPR, including spec tables, pressure class comparisons, and which brand suits which project type, see our RAKtherm vs Cosmoplast PPR pipes guide.

Why Source Cosmoplast Pipes Through Dave Pools?

Full Range Stocked in Dubai

We carry Cosmoplast uPVC and HDPE pipes and fittings from our Al Quoz warehouse — no waiting for import shipments. For contractors on active sites, that means you can order today and collect or receive delivery quickly across Dubai and the wider UAE.

Certified Products, Every Time

Every Cosmoplast pipe and fitting we stock is manufactured to international standards and carries third-party certification. Products are tested to BS EN 1452, BS 3505, and ISO 4427, with certification from BSI, WRAS, Intertek, and Kiwa. If your project specification requires certified product data sheets or test reports, our team can provide them.

Technical Selection Support

Not sure whether you need PN10 or PN16? SDR17 or SDR11? Metric or inch series fittings? Our team has supplied UAE contractors for over 20 years and can help you match the right Cosmoplast product to your project pressure requirements, ground conditions, and budget. See our pipes and fittings supplier page for the full range we carry.

Single Supplier for Your Project

Dave Pools is a trusted supplier in Dubai covering pipes, fittings, valves, irrigation equipment, and pool equipment — all from one source. That means one purchase order, one delivery, and one point of contact for your project. We also stock the uPVC pipes and fittings, HDPE pipes and fittings, CPVC pipes and fittings, drainage pipes, and PVC high-pressure valves you’ll need alongside your pipe order.

Pricing That Works for Bulk Projects

We supply UAE contractors, MEP subcontractors, landscaping firms, and developers at bulk pricing. Send us your bill of quantities and we’ll come back with a competitive quote. See our water management solutions page for the scope of supply we handle.

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