Supreme Compression Coupling 40mm PN16 | Heavy-Duty Straight MDPE Joiner
The Supreme Compression Coupling 40mm PN16 is a commercial-grade straight mechanical joiner engineered to instantly connect two lengths of 40mm outside diameter (O.D.) polyethylene water pipes. Designed specifically for high-pressure professional irrigation networks, agricultural watering, and heavy-duty water supply lines across the UK, this Italian-engineered fitting delivers a 100% leak-proof connection rated up to 16 Bar (232 PSI) without requiring specialist tools, solvent glues, or heat welding.
- Product Code / SKU: SUP-CC-40-PN16
Key Technical Advantages
Patented Poseidon Balance Sealing System
At the core of this 40mm coupler is the innovative Poseidon Balance Sealing System. Unlike standard retail budget fittings that leak if the pipe is slightly oval or scratched, Supreme’s conical NBR/EPDM rubber gasket automatically re-balances its hydraulic sealing action as you tighten the nut. This ensures a permanent, watertight hold even under high pressure shifts or thermal pipe expansion.
Fast Assembly Without Dismantling
Time on the job site is money. The internal architecture of the Supreme S16 series features a no-dismantling design. You do not need to fully unscrew the blue nut or pull out the internal split-ring. Simply chamfer your 40mm MDPE/LDPE pipe and push it straight through the seal until it hits the pipe stop. Tighten the ergonomic nut by hand or strap wrench to lock it in place, cutting average installation times by over 50%.
PN16 Rated Virgin Polypropylene Build
Engineered to easily outperform standard DIY-grade plastic joiners, the body, thrust ring, and nut are moulded from high-grade virgin copolymer polypropylene (PP-B). This material offers exceptional mechanical impact strength and thermal stability. The blue nuts are treated with premium UV-stabilised master-batch (Class 8 per ASTM D2565), rendering the coupling immune to intense sunlight degradation, harsh winter frosts, and chemical fertilisers used in commercial horticulture.
Technical Specification Table
| Attribute | Specification |
|---|---|
| Brand | Supreme Fittings (Italy) |
| Fitting Type | Straight Compression Coupling / Joiner |
| Compatible Pipe Size | 40mm Outside Diameter (O.D.) |
| Pressure Rating | PN16 (16 Bar / 232 PSI) |
| Body & Nut Material | High-grade Virgin Polypropylene (PP-B) |
| Grip Ring Material | High-performance Polyacetal Resin (POM) |
| Gasket / Seal | Conical NBR / EPDM Rubber (70sh Hardness) |
| Temperature Range | -10°C to +45°C |
| Approvals & Certificates | WRAS (UK), DVGW (Germany), KIWA (Netherlands) |
Compatibility & Primary Applications
The Supreme 40mm straight connector is fully compatible with all standard UK black or blue medium-density and low-density polyethylene pipes (MDPE, HDPE, and LDPE).
- Professional Pop-Up Systems: Ideal for main supply lines supplying golf course or football pitch pop-up sprinklers.
- Agricultural Layouts: Connecting commercial glasshouse main lines and agricultural drip irrigation feeds.
- Emergency Site Repairs: Instantly fixing mechanically punctured or cracked underground water lines without welding gear.
Reviews
There are no reviews yet.