CONTENTS
Introduction � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 5
Operating Principle � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 7
Installation� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 8
Precautions � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 8
Piping Plumbing � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 9
Flow Direction � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 9
Mounting Orientation� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 10
Models with 1 in� (25�40 mm) Male NPTF End Connections � � � � � � � � � � � 10
Models with PVC Socket Weld End Fittings � � � � � � � � � � � � � � � � � � � � � 11
Models with Brass Sweat End Fittings� � � � � � � � � � � � � � � � � � � � � � � � � 12
Models with Male, Metal or PVC Threaded End Fittings� � � � � � � � � � � � � � 13
Models with Female, Metal Threaded End Fittings� � � � � � � � � � � � � � � � � 14
Flow-Alert Switch Options � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 15
Flow-Alert Latching Limit Switch� � � � � � � � � � � � � � � � � � � � � � � � � � � � 15
Flow-Alert Reed Limit Switch � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 16
Flow-Alert Switch Installation � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 17
Latching Switch� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 17
Reed Switch � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 20
Flow-Alert Reed Switch Adjustment� � � � � � � � � � � � � � � � � � � � � � � � � � 21
Maintenance � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 22
1/2…1 in� (12�70…25�40 mm) Meters� � � � � � � � � � � � � � � � � � � � � � � � � 22
1-1/2…2 in� (38�10…50�80 mm) Meters � � � � � � � � � � � � � � � � � � � � � � � 22
Fluid Correction Standard Flow Scales � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 23
Special Flow Scales � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 23
Viscosity Effect � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 23
Density Effect � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 23
User Manual
Page iii
October 2019
VAM-UM-00367-EN-03
www.
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1.800.561.8187
