Griffco Valve CC PVC - Manual

Griffco Valve Inc.
6010 N. Bailey Ave, Ste 1B
Amherst, NY 14226 USA
Phone: 1 800-474-3326
Fax: 1 716-835-0893 PVC CALIBRATION CYLINDERS
Installation & Operation Manual
Installation Instructions:
Install the calibration cylinder in the suction line
before the chemical metering pump. Ensure that the
cylinder is vertical and level. For Sealed and EZ-
Clean configurations, two (2) isolating valves are
typically installed as per the drawing below. The top
of the cylinder should be vented back to the top of
the chemical container or to drain. The cylinder must
never be pressurized above 15 psi.
Caution! Max. cylinder pressure is 15 psi.
Operating Instructions:
There are two (2) methods for using the calibration
cylinder, measuring volume or flow rate.
Method 1 – Volumetric. Any drawdown time may
be used: (Using the mL Scale)
1. Open isolating valves 1 and 2 to fill the cylinder to
the top mark on the scale (0 mL). Valve 3 is open
for venting.
2. Close isolating valve 1 from the tank on the suction
line. Leave isolating valves 2 and 3 on the
calibration cylinder open. Note the top needs to be
open to vent.
3. Turn on the chemical feed pump for a measured
drawdown time (seconds). Turn off the pump or
close valve 2 (first) and open valve 1 from the tank.
The volume displaced from the cylinder can be
read on the left side of the cylinder scale in mL. If
not starting at zero, subtract the starting reading
from the final reading.
4. To convert the mL reading into LPH or GPH use
one of the following two formulas:
LPH = 3.6 x [mL] ÷ Time (sec)
GPH = 0.951 x [mL] ÷ Time (sec)
5. If the reading is not the desired flow rate, adjust the
pump speed or stroke setting and repeat steps 1-4
until the correct flow rate is achieved.
6. Close valves 2 and 3 for normal system operation
and drain, or empty column.
Method 2 - Flow Rate, capacity based on 30 sec
drawdown time: (Using the USGPH scale)
1. Open isolating valves 1 and 2 to fill the cylinder to
the top mark on the scale (0 USGPH). Valve 3 is
open for venting.
2. Close isolating valve 1 from the tank on the suction
line. Leave isolating valves 2 and 3 on the
calibration cylinder open. Note the top needs to be
open to vent.
3. Turn on the chemical feed pump for 30 seconds.
Turn off the pump or close valve 2 (first) and open
valve 1 from the tank. The USGPH reading is on
the right side of the cylinder label. If not starting at
zero, subtract the starting reading from the final
reading.
4. If the reading is not the desired rate of flow adjust
the pump volume and repeat the process until the
correct rate of flow is achieved.
5. Close valves 2 and 3 for normal system operation
and drain, or empty column.
www.griffcovalve.com CALL 1 - 800 - GRIFFCO
Bulletin # INSCC-5000-2014