Why HDPE
Polymers are long-chain molecules that give plastic a 'memory'. High impact resistance — unlike metals or glass with crystalline structures that dent or fracture.
Polyethylene is inert — the molecular structure is full and the material will not rust, corrode or suffer electrolysis. There's no coating to fail. Over the life of a mine install, eliminating paint prep and periodic repaint cycles removes a significant recurring cost — and the downtime that comes with it.
Because PE is inert and does not corrode, structures can be visually checked in place rather than dropped, dry-docked or recoated on a schedule. That changes the operating economics — fewer planned shutdowns, less rigging, less downtime around inspection.
Polymers are long-chain molecules that give plastic a memory. HDPE absorbs impact and returns to shape rather than denting permanently. That matters when barges, cranes and pump bodies come into regular contact with the structure — and underground, when rock-bolt-laden vehicles brush past ducting.
Polyethylene has a low friction coefficient (0.02), which results in less drag and air resistance through ducting and intakes. Combined with seamless inherently-round Polyduct cylinders, that translates to fan-energy savings across the life of the install.
The Polyline catalogue stamps the pump-product family with one phrase: Products that Pay for Themselves. Reported field outcome — Flygt servicing reduced from once every three months to once every twelve. Less servicing, less downtime, less consumable spend across the life of the install.
Same logic across the range: 50%+ savings on butt-welded poly-pipe fittings versus compression fittings, with welded joins as strong as the pipe itself; modular pontoons that ship flat and bolt-up without specialist trades; HDPE escapeway sections that go in once and stay for the life of the mine.
PE can be specified for the conditions you face: standard grades; UV-stabilised for outdoor service life; fire-retardant, anti-static or chemical-resistant grades for specific safety or process requirements; glow-in-the-dark grades for emergency egress; FRAS for explosives storage.
We also work the rest of the polymer family: polypropylene where you need higher temperature and chemical resistance; polyurethane for wear and impact components; PVDF for monitoring and gas-handling lines. Picking the right polymer is part of the engineering — not just an afterthought to fabrication.
Polymers are long-chain molecules that give plastic a 'memory' — high impact resistance, unlike metals or glass with crystalline structures that dent or fracture. Polymer products are lightweight, corrosion-free, durable, abrasion-resistant, and can be rigid or flexible. They are a good alternative to steel, aluminium and many traditionally used materials.
We'll scope the swap — part-for-part or redesigned for the job.