Series WMH Multi-Jet Hot Water Meter

High Temperature Threshold, Pulsed Output

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The Series WMH High Temperature Multi-Jet Water Meters are a series of mechanical, water totalizing meters that display the total water usage in gallons with m3 options. They are available in a range of body sizes and include NPT or BSPT optional couplings. The high temperature resistant brass body is compatible in applications with high temperature water no suitable with standard brass water meters and maintains its accuracy.

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Product Applications

HVAC applications
Measuring total condenser water flow in residential, commercial and industrial applications
Remote hot water monitoring

Starting at $172.85

Ordering

Grouped product items
Model	Description	Availability*	Price
WMH-A-C-01	Multi-Jet hot water meter, 5/8" x 1/2" pipe size, 0.1 gal pulse output.	1-3 days*	$179.70
WMH-A-C-01-10	Multi-Jet hot water meter, 5/8" x 1/2" pipe size, 10 gal pulse output.	Call for Details*	$177.00
WMH-A-C-02-1	Multi-Jet hot water meter, 5/8" x 3/4" pipe size, 1 gal pulse output.	1-3 days*	$180.60
WMH-A-C-02-10	Multi-Jet hot water meter, 5/8" x 3/4" pipe size, 10 gal pulse output.	Call for Details*	$181.10
WMH-A-C-02-100	Multi-Jet hot water meter, 5/8" x 3/4" pipe size, 100 gal pulse output.	12-13 Weeks*	$183.90
WMH-A-C-03-1	Multi-Jet hot water meter, 3/4" short length pipe size, 1 gal pulse output.	1-3 days*	$218.80
WMH-A-C-06	Multi-Jet hot water meter, 1" pipe size, 0.1 gal pulse output.	1-3 days*	$286.90
WMH-A-C-06-1	Multi-Jet hot water meter, 1" pipe size, 1 gal pulse output.	1-3 days*	$286.90
WMH-A-C-06-10	Multi-Jet hot water meter, 1" pipe size, 10 gal pulse output.	Call for Details*	$292.15
WMH-A-C-07-1	Multi-Jet hot water meter, 1-1/2" pipe size, 1 gal pulse output.	1-3 days*	$548.60
WMH-A-C-07-10	Multi-Jet hot water meter, 1-1/2" pipe size, 10 gal pulse output.	1-3 days*	$548.60
WMH-A-C-07-100	Multi-Jet hot water meter, 1-1/2" pipe size, 10 gal pulse output.	12-13 Weeks*	$540.25
WMH-A-C-08-100	Multi-Jet hot water meter, 2" pipe size, 100 gal pulse output.	Call for Details*	$886.00
WMH-B-C-10-1	Multi-Jet hot water meter, 20mm pipe size, 1 liter pulse output.	Call for Details*	$181.10
WMH-B-C-11-10	Multi-Jet hot water meter, 25mm pipe size, 10 liter pulse output.	12-13 Weeks*	$282.55
WMH-B-C-12-1	Multi-Jet hot water meter, 32mm pipe size, 1 liter pulse output.	Call for Details*	$287.75
WMH-B-C-12-10	Multi-Jet hot water meter, 32mm pipe size, 10 liter pulse output.	Call for Details*	$287.75
WMH-B-C-13-10	Multi-Jet hot water meter, 40mm pipe size, 10 liter pulse output.	Call for Details*	$538.70

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

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FAQ

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.

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