Dwyer Instruments SERIES WM2 Catalog Page

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SERIES WM2 & WMT2

MULTI-JET WATER METER

FLOW

Economical, Brass Body, Dry Dial

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WMT2

WM2

The Series WM2 Multi-Jet Water Meter is a series of mechanical, water totalizing
meters that display the total water usage in gallons or m3. They are available in a
range of body sizes and include NPT or BSPT couplings. The Series WMT2 Multi-Jet
Water Meter with Pulsed Output is a series of mechanical, water totalizing meters
that display the total water usage in gallons or m3 and provide a reed switch output

proportional to ow rate. They are available in a range of body sizes and include NPT

or BSPT couplings.

FEATURES/BENEFITS

• Multi-jet design allows for simplicity and accuracy with wide ow ranges, even in low
ow 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, even under harsh
conditions

• Integral strainer that protects meter from particulate damage

• Easy installation with included coupling adapters

APPLICATIONS

• Irrigation

• Cooling systems

• Filtration systems

• Water monitoring

MODEL CHART

Model Size
WM2-A-C-01
WM2-A-C-02
WM2-A-C-03
WM2-A-C-04
WM2-A-C-06
WM2-A-C-07

5/8 x 1/2˝
5/8 x 3/4˝
3/4˝
1˝
1-1/2˝
2˝

Coupling
Size

1/2˝ NPT
3/4˝ NPT
3/4˝ NPT
1˝ NPT
1-1/2˝ NPT
2˝ NPT

Max Flow Nominal Flow Range Transitional Flow

20
20

30

50

100

160

1 to 20
1 to 20
2 to 30
3 to 50
5 to 100
8 to 160

MODEL CHART

Water Meters

Model Size
WM2-B-C-08
WM2-B-C-10
WM2-B-C-11
WM2-B-C-12
WM2-B-C-13
WM2-B-C-14

15 mm
20 mm
25 mm
32 mm

40 mm

50 mm

Coupling
Size

1/2˝ BSPT
3/4˝ BSPT
1˝ BSPT
1-1/4˝ BSPT
1-1/2˝ BSPT
2˝ BSPT

Max Flow Nominal Flow Range Transitional Flow

3

5

7

12
20

30

0.12 to 1.5

0.2 to 2.5

0.28 to 3.5

0.48 to 6

0.8 to 10

1.2 to 15

MODEL CHART

Model Size
WMT2-A-C-01
WMT2-A-C-02
WMT2-A-C-03*
WMT2-A-C-04
WMT2-A-C-01-1
WMT2-A-C-02-1
WMT2-A-C-03-1*
WMT2-A-C-04-1
WMT2-A-C-06-10
WMT2-A-C-07-10
WMT2-A-C-04-100
WMT2-A-C-07-100

*Does not include inlet lter.

5/8 x 1/2˝
5/8 x 3/4˝
3/4˝
1˝
5/8 x 1/2˝
5/8 x 3/4˝
3/4˝
1˝
1-1/2˝
2˝
1˝
2˝

Coupling
Size

1/2˝ NPT
3/4˝ NPT
3/4˝ NPT
1˝ NPT
1/2˝ NPT
3/4˝ NPT
3/4˝ NPT
1˝ NPT
1-1/2˝ NPT
2˝ NPT
1˝ NPT
2˝ NPT

Max Flow Nominal Flow Range Transitional Flow

20
20

30

50
20
20

30

50

100

160
50
160

1 to 10

1 to 20
2 to 30
3 to 50

1 to 10

1 to 20
2 to 30
3 to 50
5 to 100
8 to 160
3 to 50
8 to 160

MODEL CHART

Model Size
WMT2-B-C-08-1
WMT2-B-C-10-1*
WMT2-B-C-11-1
WMT2-B-C-12-1
WMT2-B-C-08-10
WMT2-B-C-12-10
WMT2-B-C-14-10
WMT2-B-C-12-100
WMT2-B-C-14-100

*Does not include inlet lter.

DWYER INSTRUMENTS, INC. 286

15 mm
20 mm
25 mm
32 mm
15 mm
32 mm
50 mm
32 mm
50 mm

Coupling
Size

1/2˝ BSPT
3/4˝ BSPT
1˝ BSPT
1-1/4˝ BSPT
1/2˝ BSPT
1-1/4˝ BSPT
2˝ BSPT
1-1/4˝ BSPT
2˝ BSPT

Max Flow Nominal Flow Range Transitional Flow

3

5

7

12

3

12

30

12

30

0.12 to 1.5

0.2 to 2.5

0.25 to 3.5

0.48 to 6

0.12 to 1.5

0.48 to 6

1.2 to 15

0.48 to 6

1.2 to 15

Size
in (mm)

5/8 x 1/2 (15)
5/8 x 3/4
3/4 (20)
1 (25)
1-1/4 (32)
1-1/2 (40)
2 (50)

0.25

0.25

0.5

0.75

1.5
2

0.03

0.05

0.07

0.12

0.2

0.3

WM2

Spud NPSM
(BSPP)

3/4˝ (3/4˝)
1˝ (1˝)
1˝ (1˝)
1-1/4˝ (1-1/4˝)
1-1/2˝ (1-1/2˝)
2˝ (2˝)
2-1/2˝ (2-1/2˝)

Length ‘L’
in (mm)

6-1/2 (165)
7-1/2 (190)
7-1/2 (190)
10-1/4 (260)
10-1/4 (260)
11-13/16 (300)
11-13/16 (300)

Width ‘W’
in (mm)

3-45/64 (94)
3-45/64 (94)
3-45/64 (94)
3-55/64 (98)
3-55/64 (98)
4-51/64 (122)
5-45/64 (145)

WMT2

Height ‘H’
in (mm)

4-15/64 (107.5)
4-15/64 (107.5)
4-15/64 (107.5)
4-5/8 (117.5)
4-5/8 (117.5)
5-9/16 (141.5)
6-31/32 (177)

SPECIFICATIONS
Service: Water.

Wetted Materials: Body: Brass, polyethylene; Couplings: Brass; Measuring

Chamber: Polyethylene, ABS plastic, ferrite, acetal.

Flow Range: See model chart.
Accuracy: Transitional ow: ±5%; Nominal ow: ±2%.
Temperature Limit: 104°F (40°C).
Pressure Limit: 232 psi (16 bar).
Totalizing Display Maximum: See model chart.
Output Signal: Pulse output with frequency proportional to ow rate (WMT2 only).
Pulse Options: 0.1 gal, 1 gal, 10 gal, 100 gal per pulse (1 L, 10 L, 100 L per pulse)

(WMT2 only).

Electrical Rating: 0.01 A @ 24 VAC/DC (WMT2 only).
Electrical Connections: Color-coded lead wires, 4.5´ (1.5 m) long (WMT2 only).
Mounting Orientation: Horizontal with the register face pointing up.
Weight: See dimension chart.

Display Max
(Gallons)GPM (Gallons Per Minute)

9,999,999.99
9,999,999.99
99,999,999.9
99,999,999.9
99,999,999.9
99,999,999.9

Display Max

3

(m

)m3/h

99,999.9999
99,999.9999
99,999.9999
99,999.9999
999,999.9999
999,999.9999

0.25

0.25

0.25

0.75

0.25

0.25

0.25

0.75

1.5
2

0.75
2

0.03

0.05

0.07

0.12

0.03

0.12

0.3

0.12

0.3

Display Max
(Gallons)

9,999,999.99
9,999,999.99
9,999,999.99
99,999,999.9
9,999,999.99
9,999,999.99
9,999,999.99
99,999,999.9
99,999,999.9
99,999,999.9
99,999,999.9
99,999,999.9

Display Max

3

/h)

(m

99,999.9999
99,999.9999
99,999.9999
99,999.9999
99,999.9999
99,999.9999
999,999.9999
99,999.9999
999,999.9999

Pulse Rate
(Gal./Pulse)GPM (Gallons Per Minute)

0.1

0.1

0.1

0.1
1
1
1
1
10
10
100
100

Pulse Rate
(L/Pulse)m3/h

1
1
1
1
10
10
10
100
100

USA: California Proposition 65
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Weight
lb (kg)

3.75 (1.7)

3.97 (1.8)

4.9 (2.2)

6.4 (2.9)

8.2 (3.7)

13.52 (6.17)

18.74 (8.5)