FlowCal cartridge assembly and disassembly
The internal flow cartridge can be removed easily from the valve body for inspection, cleaning or
replacement by unscrewing the cap as shown here.
Flow verification
The flow rate can not be field adjusted. To verify flow rate with pressure and temperature gages
or meter with sensor probes, use the factory-installed pressure and temperature test ports (or
install separately sourced PT test ports, also available from Caleffi). The PT test port accepts
either a 1/16" or 1/8" OD probe. Dirt or debris may be the cause for readings outside the specified
flow rate.
Body
Cartridge
Retainer ring
Cap
B
1/2” - 3/4” from 0.5 to 10 gpm
Body
Cartridge
Retainer ring
Cap
Body
Adapter
Spring
Cartridge
Cap
1” - 1 1/4” from 2.5 to 21 gpm
from 2.5 to 10 gpm
from 11 to 21 gpm
