Drain Flange
Definition and meaning of Drain Flange in real estate.
Drain flange is a circular metal or plastic rim that sits inside the drain opening of a sink, shower, or bathtub. It connects the plumbing fixture to the underlying waste pipes and houses the stopper mechanism.
In more detail
The flange creates a secure, watertight transition between the fixture basin and the plumbing trap. Plumbers typically install it using a seal of plumbers putty or silicone to prevent wastewater from leaking underneath the sink or tub. Over time, the seal can degrade, leading to slow leaks that can damage the surrounding cabinetry or subflooring.
Because the flange is highly visible, it is often chosen in finishes that match the faucet and other bathroom or kitchen fixtures.
Key facts
| Category | Property Types & Construction |
|---|---|
| Primary Function | Creates a watertight seal at the drain opening |
| Common Materials | Stainless steel, brass, and plastic |
| Key Indicator of Failure | Water pooling in the cabinet under the sink |
A home renovator applies plumbers putty beneath a new chrome metal ring before pressing it into the kitchen sink drain opening to prevent leaks.
Frequently asked questions
How do you seal a drain flange?
A flange is typically sealed using plumbers putty or a silicone sealant applied underneath the rim before it is tightened against the fixture.
Why is water leaking under my sink basin?
A common cause is a dried-out or damaged seal around the drain flange, which allows water to seep through the gap between the flange and the basin.