Wafer Butterfly Valve Installation Guide | Step-by-Step Instructions & Expert Tips

Wafer Butterfly Valve Installation Guide

Proper installation of a wafer butterfly valve is essential to ensure reliable performance, long service life, and leak-free operation.

A wafer type butterfly valve is a compact, lightweight flow control device designed to fit between two flanges. Unlike lug-type valves, wafer valves rely on flange bolts passing through the valve body to maintain alignment and sealing.

Installation Steps for Wafer Butterfly Valve

✅Insert the valve between the pipe flanges, making sure the valve body is centered.

✅Align the flanges, checking that the valve disc can rotate freely without touching the pipe walls.

✅Insert and hand-tighten the bolts through both flanges and valve holes.

✅Gradually torque bolts in a star pattern to ensure even pressure on both sides.

✅Cycle the valve open and closed to ensure smooth operation and no obstruction.

✅Conduct a pressure test to check for leaks or irregularities in flow.

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