Dimension comparison when replacing MZF valve with VG311 or V321

Issue

Dimension comparison when replacing MZF valve with VG311 or V321

Product Line

Field Devices

Environment

MZF

V321

VG311F

Cause

Replacing Satchwell MZF valves, the new valve is a different size, i.e. larger.

Resolution

The Satchwell MZF valve is a physically smaller valve when compared to other manufacturers valves of the same DN. The only solution is to modify the pipework.

For the valve datasheets click on the relevant valve type MZF VG311F V321

The table below details the differences.