Quick Answer: The Water Meter, Woltmann is a helical vane water meter with a 65 mm (2 1/2 inch) nominal bore. It has a maximum working pressure of 16 bar and a maximum water temperature of 50°C.
Last updated: October 2026
Key Features
Woltmann helical vane measuring element
Nominal bore 65 mm (2 1/2 inch)
Can be installed horizontally, vertically or inclined
Maximum working pressure 16 bar
Tested at 25 bar and 50°C
Maximum operating water temperature 50°C
Technical Specifications
Specification
Value
Type
Woltmann, helical vane
Nominal bore
65 mm (2 1/2 inch)
Installation
Horizontal, vertical or inclined
Maximum working pressure
16 bar
Testing pressure
25 bar
Maximum water temperature
50°C
About This Product
A Woltmann meter records the volume of water passing through a supply main, such as the inlet to a school, building or distribution zone.
Frequently Asked Questions
Can the Woltmann water meter be fitted vertically?
Yes. It can be installed in any position: horizontal, vertical or inclined.