The standard of making Finger Touch Drain

"Finger Touch Drain" typically refers to a type of pop-up drain used in sinks, especially in bathroom basins, that opens and closes with a simple press of the stopper — hence "finger touch."

Here’s a general breakdown of the standard for making or specifying a Finger Touch Drain:

Key Standards & Specifications

These may vary slightly by region or manufacturer, but most conform to plumbing and building standards like ASME A112.18.2, CSA B125.2, or EN 274 (Europe).

1. Material Standards

Common materials: Brass, stainless steel, or ABS plastic

Finish: Chrome, matte black, brushed nickel, gold, etc.

Corrosion resistance is essential, especially in brass components.

2. Dimensional Standards

Thread size (for basin connection): Typically G1¼” (1.25 inch BSP), sometimes G1½"

Overall height: Varies, usually around 90–120 mm

Flange diameter: Around 60–70 mm

Designed to fit standard drain holes (≈ 45 mm or 1¾")

3. Functional Features

Click mechanism: Spring-loaded for opening/closing with a single push

Overflow or non-overflow: Different versions for basins with or without overflow holes

Watertight seal: Rubber or silicone gaskets included

4. Installation Standards

Must include:

Rubber/silicone gaskets

Lock nut or mounting hardware

Instructions compliant with local plumbing codes

5. Compliance & Certifications

Should meet national plumbing codes:

USA: UPC/cUPC

Europe: CE + EN 274

UK: WRAS approval may be necessary

Leak tests and durability tests are often required by manufacturers

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