Series WPT Multi-Jet Plastic Water Meter
Specications - Installation and Operating Instructions
Bulletin F-WPT
The SERIES WPT Plastic Multi-Jet Water Meters are a series of mechanical, water
totalizing meters that display the total water usage in Gallons with m
3
options. They are
available in a range of body sizes and include NPT or BSPT optional couplings. The
plastic body water meters can be used in potable water applications, some corrosive
environments, or where an economical water totalizer is desired.
FEATURES/BENEFITS
• Plastic body ideal for lead free requirements
• Multi-jetdesignallowsforsimplicityandaccuracywithsideowranges,eveninlow
owapplications
• 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
• Pulsedoutputproportionaltoowallowsforremoteowtotalization
APPLICATIONS
• Low cost residential water measurement
• Agriculture (fertilizers, pesticides, and herbicides)
• Irrigation
• Remote water monitoring
Installation Instructions
1. Thoroughlyushtheservicelineupstreamofthemetertoremovedirtanddebris.
2. Remove meter spud thread protectors.
Note: To protect meter spud threads, store the meter with thread protectors in place.
3. Set the meter in the line. Install in a horizontal plane, with the register upright, in a
location accessible for reading, service and inspect. There are arrows located on
thesideofthemeterandabovetheoutletspudwhichindicatethedirectionofow.
4. For accurate measurement, the tap height should be higher than the meter.
5. Do not over-tighten connections; tighten only as required to seal. Do not use pipe
sealant tape on meter threads.
SPECIFICATIONS
Service: Water.
Wetted Materials: Body: Nylon 66;
Couplings:Nylon66,1-1/2˝(40mm)
sizes lead free ECO BRASS
®
alloy;
Measuring Chamber: ABS Plastic.
Flow Range: See model chart.
Accuracy: WPT-A-X-XX: Transitional
Flow: ±3%; Nominal Flow: ±1.5%;
WPT-B-X-XX*: Transitional Flow: ±5%;
Nominal Flow: ±2%.
Temperature Limit:122°F(50°C).
Pressure Limit:150psi(10bar).
Pressure Drop: See pressure drop
curve below.
Totalizing Display Maximum: See
model chart.
Output Signal: Pulse output with
frequencyproportionaltoowrate.
Pulse Options:0.1gal,1gal,10gal,
100galperpulse(1L,10L,100L,1000
per pulse) See model chart.*
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.
Unit must be installed in a horizontal position with the register face
pointing up otherwise leakage and/or meter damage will occur.
CAUTION
Size
in (mm)
Spud
NPSM (BSPP)
Length ‘L’
in (mm)
Width ‘W’
in (mm)
Height ‘H’
in (mm)
Weight
lb (kg)
5/8 x 1/2 (15)
5/8 x 3/4
3/4x1(20)
1 (25)
1-1/2(40)
3/4̋(3/4˝)
1̋(1˝)
1-1/4̋(1-1/4˝)
1-1/4̋(1-1/4˝)
2˝(2˝)
6-1/2(165)
7-1/2(190)
10-1/4(260)
10-1/4(260)
9-5/8 (245)
3-23/32 (94)
3-23/32 (94)
3-23/32 (94)
3-23/32 (94)
4-13/16 (122)
4-15/64(107.5)
4-15/64(107.5)
4-15/64(107.5)
4-15/64(107.5)
5-45/64 (141.5)
1.55(0.7)
1.77(0.8)
2.43 (1.1)
2.43 (1.1)
4.41 (2)
With upstream shutoff valve only:
6. Open shutoff valve slowly, to remove air from meter and service line. Open a faucet
slowly to allow entrapped air to escape. Close the faucet.
With both upstream and downstream shutoff valves installed:
7. Test the installation for leaks: Close the outlet (downstream) shutoff valve.
Open the inlet (upstream) shutoff slowly until meter is full of water. Open the outlet
(downstream) valve slowly until air is out of the meter and service line. Open a
faucet slowly to allow entrapped air to escape. Close the faucet.
MODEL CHART
Model Size
Coupling
Size
GPM (Gallons Per Minute)
Display Max
(Gallons)
Pulse Rate
(Gal/Pulse)
Weight
lb (kg)
Max
Flow
Nominal
Flow Range
Transitional
Flow
WPT-A-C-01
WPT-A-C-01-1
WPT-A-C-01-10
WPT-A-C-01-100
WPT-A-C-02
WPT-A-C-02-1
WPT-A-C-02-10
WPT-A-C-02-100
WPT-A-C-03
WPT-A-C-03-1
WPT-A-C-03-10
WPT-A-C-03-100
WPT-A-C-04
WPT-A-C-04-1
WPT-A-C-04-10
WPT-A-C-04-100
WPT-A-C-05-1
WPT-A-C-05-10
WPT-A-C-05-100
5/8˝x1/2˝
5/8˝x1/2˝
5/8˝x1/2˝
5/8˝x1/2˝
5/8˝x3/4˝
5/8˝x3/4˝
5/8˝x3/4˝
5/8˝x3/4˝
3/4˝x1˝
3/4˝x1˝
3/4˝x1˝
3/4˝x1˝
1˝
1˝
1˝
1˝
1-1/2˝
1-1/2˝
1-1/2˝
1/2˝NPT
1/2˝NPT
1/2˝NPT
1/2˝NPT
3/4˝NPT
3/4˝NPT
3/4˝NPT
3/4˝NPT
1˝NPT
1˝NPT
1˝NPT
1˝NPT
1˝NPT
1˝NPT
1˝NPT
1˝NPT
1-1/2˝NPT
1-1/2˝NPT
1-1/2˝NPT
20
20
20
20
20
20
20
20
30
30
30
30
50
50
50
50
100
100
100
1to20
1to20
1to20
1to20
1to20
1to20
1to20
1to20
2to30
2to30
2to30
2to30
3to50
3to50
3to50
3to50
5to100
5to100
5to100
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.5
0.5
0.5
0.5
0.75
0.75
0.75
0.75
1.5
1.5
1.5
9,999,999.99
9,999,999.99
9,999,999.99
9,999,999.99
9,999,999.99
9,999,999.99
9,999,999.99
9,999,999.99
9,999,999.99
9,999,999.99
9,999,999.99
9,999,999.99
9,999,999.99
9,999,999.99
9,999,999.99
9,999,999.99
9,999,999.9
9,999,999.9
9,999,999.9
0.1
1
10
100
0.1
1
10
100
0.1
1
10
100
0.1
1
10
100
1
10
100
1.55(0.7)
1.55(0.7)
1.55(0.7)
1.55(0.7)
1.77(0.8)
1.77(0.8)
1.77(0.8)
1.77(0.8)
2.43 (1.1)
2.43 (1.1)
2.43 (1.1)
2.43 (1.1)
2.43 (1.1)
2.43 (1.1)
2.43 (1.1)
2.43 (1.1)
4.41 (2)
4.41 (2)
4.41 (2)
ECO BRASS
®
is a registered trademark patent by Mitsubishi Shindoh
W
DWYER INSTRUMENTS, INC.
P.O. BOX 373 • MICHIGAN CITY, INDIANA 46360, U.S.A.
Phone: 219/879-8000
Fax: 219/872-9057
www.dwyer-inst.com