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Engineering
G-15
Threaded
Part
Number
Line Size
Inches
(mm)
ANSI
Pressure
Class
Maximum
Flow Range
(GPM)
Close-off
Pressure
(psi)
ANSI
Leakage
Class
Pressure Independence
Range (psi)
∆p min ∆p max
Normally Open
599-04310-X 1/2 (15)
250
0.2 to 0.9
200
Class IV
(0.01%)
2.5
58
599-04311-X 1/2 (15) 0.5 to 2.5 3
599-04312-X 3/4 (20) 1 to 5.8 3.5
599-04313-X 1 (25) 1.2 to 8 4.0
599-04314-X 1-1/4 (32) 3 to 18 4.1
599-04315-X 1-1/2 (40) 10 to 40
100
3.6
599-04316-X 2 (50) 10 to 50 5.0
Normally Closed
599-04300-X 1/2 (15)
250
0.3 to 2.7
45
Class IV
(0.01%)
2.3
58
599-04301-X 1/2 (15) 1.0 to 7.5 2.6
599-04302-X 3/4 (20) 0.5 to 4.5 2.3
599-04303-X 3/4 (20) 1.0 to 8.9 3.2
599-04304-X 1 (25) 1.0 to 8.9 3.2
599-04305-X 1-1/4 (32) 2.5 to 13.2 2.6
Table Notes:
X sufx represents the various factory preset maximum ow GPM settings that are orderable
Control Valves
Selection and Sizing
1. Line size where the valve will be installed
2. Design ow, in gpm, of the coil being controlled
Then nd the valve size of the PICV, closest to the
line size, which has a preset maximum ow setting
greater than or equal to the design ow of the coil being
controlled. It is that easy!
Because the valves are pressure independent, within a
certain differential pressure range, the differential pressure
is not required for “sizing calculations.”
Just two pieces of information are needed to size a PICV:
Sizing and Selecting Pressure
Independent Control Valves (PICV)
In order for the valve to function as a pressure
independent valve, you must ensure that the minimum
differential pressure across the valve will always be
greater than the start pressure of the pressure regulator in
the PICV, or ∆p
min
of the pressure independence range of
the PICV.
Please refer to the start pressures listed below and on
G-16, and refer to the product data sheets for more
information.