Split Puddle Flange

Split Puddle Flange

 

Keylion® Split Puddle Flange solves real‑world waterproof headaches for water main lines running through concrete structures. A big practical benefit of this two‑piece ductile‑iron water‑stop collar is you can fit it around existing pipelines, no need to pull apart your whole pipe system.

We mainly supply it for stopping water seepage along outer pipe walls. It works really well when you carry out retrofits for basements and concrete tanks. Our heavy‑duty epoxy coating gives solid anti‑corrosion performance, especially for pipes buried underground. This ductile‑iron puddle flange fits common pipe sizes and forms reliable watertight joints, matching strict engineering requirements for municipal jobs and water‑treatment facilities.

Practical Notes from Site Experience

Many clients ask us about upkeep after concrete pouring. Once this flange gets embedded inside concrete, its sealing stays permanent. Concrete wraps the ductile‑iron casting plus epoxy coating, keeping oxygen and dampness away so corrosion won't take place. There are zero moving components here. That means you do not need routine checks or maintenance after concrete work finishes.

Quite a number of project buyers wonder why we pick ductile iron instead of stainless steel or plastic alternatives. Ductile iron shares close thermal expansion properties with concrete. That avoids tiny gap formation caused by temperature shifts. Plastic versions tend to deform under heavy ground loads. Stainless steel resists corrosion, yet it may trigger galvanic corrosion risks and costs far more. For underground installations, ductile iron strikes the sweet spot: robust crush‑resistance together with reasonable project cost.

Bear one key point in mind: this unit acts purely as a static water‑stop barrier. Its bolt‑clamp holds tight against pipe surfaces to block water bypass, but it cannot substitute dedicated pipe‑anchor structures. If your system meets large axial thrust or pipe thermal expansion, you still need external thrust blocks or pipe supports set outside concrete walls.

What makes the split‑type stand out from one‑piece solid puddle flanges? Its two‑part build lets technicians retrofit on existing pipelines. You do not cut pipes or undo existing joints during installation. Traditional solid flanges demand you slide them over pipe ends before assembly. Our split design cuts downtime, perfect for building extensions, repair jobs and basement waterproofing retrofits. You can mount it directly on already‑active pipe lines.

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