FLOW METER
Brand: Global Vision INC (GVI)
Model: 1250-G
Flow
meter permits the convenience of testing net fire pump performance frequently
without the cost of assembling a large group of personnel plus providing fire
hoses and nozzles for each test.
NAFFCO
use flow meter of GLOBAL VISION as The new GVI digital gauge has a 4-20 ma
output that can transmit flow data back to the controller, laptop or
software. There is no bounce and is by far the easiest gauge to
read. The GVI digital gauge is now FULLY FM APPROVED!!!!
Their readings were
so good, we are conducting 3rd party flow testing that will prove our accuracy
is closer to 0.5%. IN ADDITION: the design is so revolutionary, we
applied for a design patent which was accepted by the patent office. This
makes GVI the ONLY fire pump test meter supplier with a Patented venturi.
GVI’s new Design is FM Approved
CONSTRUCTION & SPECIFICATIONS
|
MATERIALS:
|
MACHINED 1018 OR 1026 CARBON STEEL |
|
VALVES: |
1/4"
BRASS BALL |
|
BRASS
FITTING: |
CA360 |
|
FLANGE
OPT: |
150#
ANSI B 16.5 300#
ANSI B 16.5 |
|
ID
TAG: |
POLYCARBONATE |
OPERATING INSTRUCTIONS
1. CLOSE
SYSTEM VALVE.
2. OPEN
SYSTEM BY-PASS VALVE AND THROTTLE VAL VE.
3. PURGE
METER LOCATED ON VENTURI AS FOLLOWS:
·
OPEN SHUT-OFF VALVES & VENT VALVES.
·
WHEN A STEADY STREAM OF WATER IS PASSING
THROUGH EACH PLASTIC HOSE, THE METER IS PURGED OF AIR.
·
CLOSE VENT VALVE AFTER PURGING.
4. START
FIRE PUMP, READ METER IN GPM
5. REFER
TO PUMP GPM REQUIREMENT AND ADJUST THROTTLE VALVE FOR THIS REQUIREMENT.
6. AFTER
TEST OPEN SYSTEM VALVE AND CLOSE SYSTEM BY-PASS AND THROTTLE VALVES .