Series WMH Multi-Jet Hot Water Meter

Specifications

Service:

Water.

Wetted Materials:

Body: Brass; Couplings: Brass; Measuring Chamber: Brass.

Flow Range:

See model chart on catalog page.

Accuracy:

WMH-A-X-XX: Transitional Flow: ±3%; Nominal Flow: ±1.5%.

Temperature Limit:

190°F (88°C).

Pressure Limit:

150 psi (10 bar).

Totalizing Display Maximum:

See model chart on catalog page.

Output Signal:

Pulse output with frequency proportional to flow rate.

Pulse Options:

0.1 gal, 1 gal, 10 gal, 100 gal per pulse (1 L, 10 L, 100 L, 1000 per pulse) See model chart on catalog page. (Consult factory for m3, BSPT units or additional pulse output options)

Electrical Rating:

0.01A @ 24VAC/DC.

Electrical Connections:

Color-coded lead wires, 4.5' (1.5 m) long.

Mounting Orientation:

Horizontal with register facing up.

Weight:

See dimension chart.

Features

• High temperature threshold of 190°F (88°C) ideal for high temperature applications
• Multi-jet design allows for simplicity and accuracy with wide flow ranges, even in low flow applications
• Magnetically driven, hermetically sealed register does not leak or fog and is completely separated from the water
• Designed for long service life and maintenance-free operation
• Integral strainer that protects meter from particulate damage
• Easy installation with included coupling adapters
• Pulsed output proportional to flow allows for remote flow totalization

Drawings

• CAD Drawing in format .DWG
• Adobe Reader in format .PDF

Questions

Question

I recently purchased an WM2-A-C-01, For my application the pipe is vertical with the water flowing downward. The instructions mention that it should be mounted horizontally. Is it ok to mount vertically?

Answer

Multi-jet meters use multiple ports surrounding an internal chamber to create multiple jets of water against an impeller. The impeller rotation speed depends on the velocity of the water flow. If your water is flowing downward it will not rotate the impeller as it does in a horizontal pipe or in a up flow condition. Therefore, you cannot install this instrument in a vertical down flow application and receive accurate readings.

Related

Series WPT

Series WMH

Series WM2

Series WMT2