ISTEC Corporation, your Flow Measurement and Control Specialist
 

ISTEC CORPORATION
Flow Measurement & Control
5 Park Lake Road, Unit 6
Sparta, NJ 07871 USA
Tel 973-383-9888
Fax 973-383-9088
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1800 Series Water Meter

 Model 1800 Series Water MeterISTEC’s 1800 Series water meters are ideal for water metering and performance verification applications. These hardy meters are also suitable for condensation application up to 248°F and 232 psi. We stock from 1/2" through 6" meters (with up t o 12" as special order) and all come standard with a pulse output.

 

 

 

 

 

Water Meter Series 1800 Multiple Jet

Multi-Jet

  • Multi-Jet Design with only the impeller operating in the flow chamber for reliable performance
  • No Straight Pipe required before or after the meter
  • Hermetically Sealed Counter is dust and waterproof preventing internal condensation
  • The Roller Counter can be rotated for easy reading
  • The built-in Reed Switch is cast into a waterproof enclosure and can be field replaced
  • Compact Design for easy installation
  • Unique Design allows easy maintenance and repair
  • Calibration Test Certification available on request

 

Model No.
1807
1810
1811
1812
1815
1816
1820 – OBSOLETE

Pipe Size
3/4"
1"
1"
1"
1-1/2"
1-1/2"
2"

Minimum Flow Rate (gpm)
0.22
0.4
0.4
0.4
0.7
0.7
2.64

Continuous Flow Rate (gpm)
11
26.4
26.4
26.4
44
44
66

Maximum Flow Rate (gpm)
22
52.8
52.8
52.8
88
88
132

Maximum Operation Temperature (°F)
248
248
248
248
248
248
248

Maximum Operation Pressure (psi)
232
232
232
232
232
232
232

Design
Multi-Jet

Mounting Connections
NPT
NPT
NPT
NPT
NPT
NPT
Flanged

Mounting Position
U
H
D
U
H
D
H

Pulse (gal/pulse)
1
1
1
1
1
1
10

Weight (lbs)
5.25
7.5
8.1
8.1
14.2
15.5
27.5

 

Water Meter Model 1800 Series Multi-Jet Dimensional Drawings


Dimensions
1807
1810
1811
1812
1815
1816
1820 – OBSOLETE

Pipe Size
3/4"
1"
1"
1"
1-1/2"
1-1/2"
2"

A
3-1/4"
2"
3-3/4"
3-3/4"
2-1/4"
4-3/4"
3-1/4"

B
6-1/2"
7"
7-1/4"
7-1/4"
8"
8-1/4"
6-1/4"

C
4-1/4"
10-1/4"
6"
6"
11-7/8"
8"
10-1/2"

Drawing
2
1
2
2
1
2
3

 

PRESSURE LOSS

Water Meter Model 1807 and 1812 Pressure Loss Graph

 

Water Meter Model 1810, 1815 and 1820 Pressure Loss Graph

 

Water Meter Model 1811 and 1816 Pressure Loss Graph

ACCURACY FLOW RATE

Water Meter Model 1800 Series Multi-Jet Accuracy

Model 1800 Series Woltmann Design Water Meter in 2" thru 12"

Woltmann Design

  • Flow Chamber with only the impeller operating in the flow chamber for reliable performance (Woltmann Design)
  • Very low head pressure loss
  • Installation in the Horizontal or Vertical positions
  • Hermetically Sealed Counter is dust and waterproof preventing internal condensation
  • The roller counter can be rotated for easy reading
  • The built-in reed switch is cast into a waterproof enclosure and can be field replaced
  • Compact design for easy installation
  • Field replaceable flow chamber is factory calibrated

 

Model No.
1825
1830
1835
1840

Pipe Size
2"
3"
4"
6"

Minimum Flow Rate (gpm)
2.6
14.1
8.8
35

Continuous Flow Rate (gpm)
66
140.9
264
880.6

Maxiumu Flow Rate (gpm)
264
396.3
792.5
1320.9

Maximm Operating Temperation (°F)
248
248
248
248

Maximum Operating Pressure (psi)
232
232
232
232

Design
Woltman
Woltman
Woltman
Woltman

Mounting Connections
Flanged
Flanged
Flanged
Flanged

Mounting Position
Horz or Vert
Horz or Vert
Horz or Vert
Horz or Vert

Pulse (gal/pulse)
10
10
10
100

Weight (lbs)
25
31
48
88

Water meter Model 1800 Series Woltmann Design Dimensional Drawing


Dimensions
1825
1830
1835
1840

Pipe Size
2"
3"
4"
6"

A
5-1/2"
5-1/2"
8-1/4"
9"

B
3"
3-3/4"
4-3/8"
5-3/4"

C
7-7/8"
8-7/8"
9-7/8"
11-7/8"

 

PRESSURE LOSS

Water Meter Model 1800 Series Woltmann Design Pressure Loss Graph

ACCURACY FLOW RATE

Water meter Model 1800 Series Woltmann Design Accuracy Flow Rate Graph

INSTRUCTIONS

  1. Before beginning the installation, verify that the system temperature, pressure and flow rate do not exceed the ratings indicated on the meter.
  2. The meter is designed to operate at a sustained flow of 1/2 the Maximum Flow Rating (indicated as the Continuous Flow Rating). The meter should not be operated at the Maximum Flow Rating for more than one hour per day as excessive wear and/or failure will result.
  3. Flush the pipeline thoroughly after any plumbing changes to eliminate the possibility of foreign materials reaching the meter.
  4. The 1/2" and 3/4" meters may be installed in horizontal or vertical pipelines (either up or down flow). To achieve the rated accuracy, the meter should be the same diameter as the pipe and there should be at least five (5) pipe diameters of straight pipe before and after the meter. The 1" through 2"meters have a specific flow orientation and must be installed accordingly. There is no straight pipe requirement before or after the 1" through 2" (1820 only) meters. The 2" (1825 only) and larger meters may be installed horizontally or vertically and require at least five (5) pipe diameters of straight pipe before and after the meter. In horizontal installations, the flow counter should be facing straight upward.
  5. Pay careful attention to the flow direction as indicated by the arrow cast into the meter body.
  6. It is highly recommended that a strainer be installed upstream of the meter inlet. It is also recommended that a shutoff valve be located before and after the meter to facilitate service.
  7. Care should be taken to protect the meter from water hammer as well as freezing temperatures.
  8. The counter is calibrated in U.S. gallons and cannot be reset. It will roll around to zero after reaching its maximum reading.
  9. All 1800 Series meters are equipped with a pulse output (magnetically driven "dry contact type" reed switch). Each contact closure is equal to one (1), ten (10) or one hundred (100) gallons of water as indicated on the meter. The electrical rating of the switch is 0.2 amps at 24 volt.

HOW TO READ AN 1800 SERIES WATER METER

Reading the Water Meter Gauge

The 1800 Series counter consists of a row of numbers (roller counter) and one or more circular dials with rotating pointers. There is also a star shaped wheel that rotates whenever flow is present (trickle indicator).

The roller counter is calibrated in U.S. gallons and cannot be reset. It indicates the total flow through the meter in gallons, hundreds of gallons, thousands of gallons, etc. The correct multiplier is indicated on the face adjacent to the roller counter. In the example above, the amount indicated is 345 x 100 or 34,500.

The circular dials indicate tenths of gallons, gallons, tens of gallons, etc. The respective multiplier is marked adjacent to the dial. For example, on the dial marked "x10", each number represents increments of ten gallons (i.e., 3 = 30 gallons, etc.) and one full rotation equals 100 gallons. On the dial marked "x0.1", each increment is one tenth (1/10) of a gallon (4 = 0.4) and a full rotation of the dial represents a total of 1 gallon. Note that if the pointer is between two numbers, the lower number is read.

The counter will roll around to zero and restart once it reaches its maximum reading.

Water Meter Series 1800 Single Jet
Single-Jet
  • Single-Jet Design with only the impeller in the flow chamber for reliable performance
  • Carbide bearing for long lasting life
  • Hermetically Sealed Counter is dust and waterproof preventing internal condensation caused by temperature variations
  • The roller counter can be rotated for easy reading
  • The built-in reed switch is cast into a waterproof enclosure and can be field replaced
  • Compact design for easy installation
  • The meter can be mounted horizontally or vertically
Model Number
1800 – OBSOLETE
1805 – OBSOLETE

Pipe Size
1/2"
3/4"

Minimum Flow Rate (gpm)
0.13
0.22

Vertical Minimum Flow Rate (gpm)
0.3
0.4
Continuous Flow Rate (gpm)
6.6
11

Maximum Flow Rate (gpm)
13.2
22

Maximum Operation Temperature (°F)
248
248

Maximum Operation Pressure (psi)
232
232

Design
Single Jet
Single Jet

Mounting Connections
NPT
NPT

Mounting Position
Horz or Vert
Horz or Vert

Pulse (gal/pulse)
1
1

Weight (lbs)
2.8
3.2

 
 
Dimensions

“L1”
4-1/2"
5-1/4"

“L2”
9-1/4"
10-1/4"

“H”
3-3/4"
3-3/4"

“h”
3/4"
3/4"

 

PRESSURE LOSS

Models 1800 and 1805 Pressure Loss Chart

ACCURACY FLOW RATE

Models 1800 and 1805 Accuracy Flow Graph

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