Brochure
69
6
B
DYNAMIC BALANCING VALVES FOR PLUMBING AND HYDRONICS
Below the differential pressure control range (< 2 psid)*
In this case, the spring-loaded regulating piston remains in equilibrium
without compressing the spring and gives the uid the maximum free ow
area. When below the differential pressure control range the piston acts as
a xed orice and thus the ow rate through the FlowCal depends only on
the differential pressure.
Within the differential pressure control range (2 - 32 psid)*
If the differential pressure is within the control range, the spring-loaded
piston is positioned to give the uid a free ow area permiting regular ow at
the nominal rate for which the FlowCal is set up.
Above the differential pressure control range (> 32 psid)*
In this case, the spring-loaded piston fully compresses a spring and leaves
only the xed orice for the uid to pass through. The ow rate through the
FlowCal depends only on the differential pressure.
GPM
Last 3 digits
...
Differential Pressure Control Ranges
(psid)
.35 G35
2—14.5 G50
.75 G75
1 1G0
2—32
1.3 1G3
1.5 1G5
1.7 1G7
2 2G0
2.2 2G2
2.5 2G5
2.6 2G6
3 3G0
3.5 3G5
4 4G0
4.5 4G5
5 5G0
6 6G0
4—347 7G0
8 8G0
9 9G0
5—35
10 10G
POLYMER FLOW
CARTRIDGE
CHECK VALVE
UNION
CONNECTIONS (2)
FILTER SCREEN
Construction details
FLUID THRUST
FLUID THRUSTFLUID THRUST
FLUID THRUST
FLUID THRUST
FLUID THRUST
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FLUID THRUST
Control range
Initial p
Final
p
2 psi 32 psi
DIFFERENTIAL
PRESSURE
Nominal
Range ∆p 2–32 psi
DIFFERENTIAL
PRESSURE
Nominal
2 psi 32 psi
Range ∆p 2–32 psi
FLOW RATE
DIFFERENTIAL
PRESSURE
Nominal
2 psi 32 psi
FLOW RATE
FLOW RATE
FLUID THRUST
FLUID THRUSTFLUID THRUST
FLUID THRUST
FLUID THRUST
FLUID THRUST
FLUID THRUSTFLUID THRUST
FLUID THRUST
Control range
Initial p
Final
p
2 psi 32 psi
DIFFERENTIAL
PRESSURE
Nominal
Range ∆p 2–32 psi
DIFFERENTIAL
PRESSURE
Nominal
2 psi 32 psi
Range ∆p 2–32 psi
FLOW RATE
DIFFERENTIAL
PRESSURE
Nominal
2 psi 32 psi
FLOW RATE
FLOW RATE
FLUID THRUST
FLUID THRUSTFLUID THRUST
FLUID THRUST
FLUID THRUST
FLUID THRUST
FLUID THRUSTFLUID THRUST
FLUID THRUST
Control range
Initial p
Final
p
2 psi 32 psi
DIFFERENTIAL
PRESSURE
Nominal
Range ∆p 2–32 psi
DIFFERENTIAL
PRESSURE
Nominal
2 psi 32 psi
Range ∆p 2–32 psi
FLOW RATE
DIFFERENTIAL
PRESSURE
Nominal
2 psi 32 psi
FLOW RATE
FLOW RATE
Code Description Lbs USD
290030 Isolation ball valve 1" M x 1" F union 1 36.80
Isolation ball valve.
Low lead MxF union fits 1" valves between
body and tailpiece.
NEW
NEW
Flow rate selection
FLUID THRUST
FLUID THRUST
FLUID THRUST