Brochure

Flo-Con Pressure Regulators and Valves
Parker Hannifin Corporation
Climate & Industrial Controls Group
Cleveland, OH
289
Catalog CIC-2003-1/US
Flo-Con Pressure
Regulators
& Valves
Description: Unlike other Parker Refrigerating Special-
ties regulators, (S)PORT regulators utilize a unique
numbering system identifying port & connection size
values in eighths of an inch (see previous page). For
example, a 7/8" port size by 1-1/8" connection size
valve would be identified as a (S)PORT 07-09, with the
valves port size being the first numerical value in the
description (in eighths of an inch), and the connection
size being the second value. All (S)PORT cartridges
are externally stamped with the plug or port size using
this same numbering system for field identification pur-
poses. (S)PORT evaporator pressure regulators are
available in two versions, each with their own distinct
material characteristics; the original (S)PORT, and the
(S)PORT-II. The original (S)PORT utilizes a ductile iron
body with brazed copper couplings along with a ductile
iron cartridge assembly. The original (S)PORT is avail-
able in eight port sizes ranging from a 3/8" (03) to
2-5/8" (21) and with connection sizes up to 2-5/8" (21).
A 1/4" SAE flare access fitting is standard on the
upsteam side of the valve‘s cartridge assembly. An
open frame, class F leaded coil is provided as standard
with all (S)PORT regulators. A class H coil with DIN
connector is also available with certain voltages.
The (S)PORT-II, a more recent introduction, is made
completely with corrosion resistant materials. Both the
body and cartridge are an aluminum-bronze material,
with the adapter and bonnet being aluminum. In addi-
tion, stainless steel bonnet bolts and adjusting stems
are standard on all (S)PORT-II regulators. In contrast to
the original (S)PORT, five port sizes are offered with
the (S)PORT-II style of regulator, ranging from 3/8" (03)
to 1-3/8" (11). The same open-frame coil housing which
is standard on the (S)PORT is supplied with the
(S)PORT-II. The access fitting on the (S)PORT-II is
located on the upstream side of the valve body, and
positioned to easily connect a gauge fitting for servic-
ing. The (S)PORT-II design specifically targets the
rigorous application of a commercial evaporator
pressure regulator — particularly those applications
with hot gas defrost circuits. The corrosion resistant
design of the (S)PORT-II is capable of withstanding the
cooling and heating cycles to which these types of
regulators are continually exposed.
All (S)PORT regulators are designed to be applied as a
low side (evaporator) pressure regulator only. They are
capable of being set to control pressures within a 10" to
120 psig (250mm Hg through 8.3 bar) range. For high
side regulator applications, the Refrigerating Special-
ties A8 regulator should be considered.
Variations: PORT or PORT-II: Standard Inlet pressure
regulator. (S)PORT or (S)PORT-II: Inlet pressure
regulator with an electric shut-off feature. (S)PORT-B or
(S)PORT-II-B. Inlet pressure regulator with an electric
shut-off and electric wide opening, (or bypass) feature.
Installation: (S)PORT regulators use a spring loaded
solenoid plunger design which assists the plunger in
closing off tightly against the solenoid pilot seat regard-
less of position or orientation. The regulator can there-
fore be installed in either a horizontal or vertical pipe
line regardless of the type of (S)PORT valve being
installed (i.e. with or without a pilot solenoid).
When brazing in line, typically a wet cloth wrapped
around the valve body is recommended to dissipate
heat. If a valve is disassembled prior to installation,
always have the correct gasket/ O-ring kit available
for reassembly. The internal cartridge-to-body O-ring
will need to be replaced prior to reassembly.
Adjustment: Adjustment of a regulators set point re-
quires that the pressure being controlled be monitored
by an accurate pressure gauge. Turning the valves ad-
justing screw clockwise (into the bonnet) compresses
the range spring and subsequently raises the valves set
point. Conversely, turning the adjusting stem counter-
clockwise will decrease the valves set point. Adjusting
the set point of a (S)PORT regulator must be made
with the solenoid energized, and the manual opening
stem turned in. The inlet side solenoid only is required
to be energized to adjust the set point on a (S)PORT-B.
Depending on system design and system conditions,
the pressure gauge may reflect some delay before a
change in a regulator’s set point actually results in a
change in the pressure being maintained.
Electrical: All (S)PORT regulator versions utilize a
molded water resistant class “F” solenoid coil with open
frame housing as standard. A class “H” DIN coil is also
available with certain voltages. Coils are designed to
operate with line voltage from 85% to 110% of rated
coil voltage. Operating with a coil voltage above or
below these limits may result in coil burnout. Also, oper-
ating with a coil voltage below this limit will result in
lowering the valves maximum opening pressure differ-
ential, or MOPD. Power consumption during normal
operation will be 10 watts or less. The 208/240/60 Hz
wide voltage range coil used on all (S)PORT regulators
is rated at 280 MOPD. All other coils are rated at 300
MOPD.
Ordering Guide: Specify valve type (PORT, (S)PORT,
(S)PORT-II, etc.), port and connection size in eighths
of an inch (port size indicated first), and voltage, if
applicable.
Technical Information (S)PORT Evaporator Pressure Regulators