Badger Meter 1200 - Manual (Page 10)

OPERATIONAL STARTUP
Follow these steps when installing and starting the meter
MAKE SURE TO SHUT OFF FLUID FLOW AND RELEASE THE PRESSURE IN THE LINE BEFORE ATTEMPTING TO INSTALL THE
METER IN AN EXISTING SYSTEM.
1 After meter installation, close the isolation valves and open the bypass valve Allow liquid to flow through the bypass valve
for sufficient time to eliminate any air or gas in the flow line
STRIKING AN EMPTY METER WITH HIGH VELOCITY FLOW STREAM CAN CAUSES DAMAGE.
2 Open upstream isolating valve slowly to eliminate hydraulic shock while charging the meter with the liquid Open the
valve to full open
3 Open downstream isolating valve to permit meter to operate
4 Close the bypass valve to a full closed position
5 Adjust the downstream valve to provide the required flow rate through the meter
OTEE: N The downstream valve may be used as a control valve
PART NUMBER INFORMATION
Part Number End Connection
Flow Ranges Approximate K factor
Pulses/Gal gpm lpm
B121-225 1/2 in Male NPT 0 25…2 5 0 57…9 46 29,000…33,000
B121-250 1/2 in Female NPT 0 75…7 5 0 95…28 39 8500…9500
B121-275 1 in Male NPT 2 5…25 1 89…94 64 2800…3000
Turbine Flow Meter, Model 1200 Turbine Flow Meter
Page 10 November 2013