MAIN REGULATORS ONLY (AR1, AR3)
OPERATION OF REGULATORS
The regulator adapter (top cover) is available with one
control module port or three control module ports. One
control module port is often used for a solenoid valve or
a single pressure regulator. Three control module ports
are often used for a dual regulator and other multiple
function variations.
When the modular regulator has three control module
ports, two are in series (SI and SII) and one is in parallel
(P). Inlet pressure enters the internal equalization
passage and goes to both the P port and the SI port.
Inlet pressure enters the SII when the control module
SI port is open. When the control module in the SI and
SII port or the P port is open, pressure enters the space
above the piston which forces the main valve seat to
open and regulate flow.
Hansen regulators are normally furnished with control
modules (pilots) installed and tested (see page 3).
However, modular regulators less pilots and flanges
are available on order from ¾" to 6" (20mm to 150mm).
Each AR1 and AR3 includes flange gaskets, nuts and
bolts, and a plugged ¼" FPT outlet pressure access port.
The access port is for connecting outlet or differential
control module sensing lines or gauges.
AR1 is the main regulator body with ONE control module
(pilot) port, control module not included.
AR3 is the main regulator body with THREE control
module (pilot) ports, for a maximum of three control
modules, not included. The 5" and 6" (125mm and
150mm) AR3 regulators have a single control module
port with connection points for up to three total ports
via mounted pilot piping.
TO ORDER:
(Main Regulators only) Specify port size
and catalog number (AR1 or AR3).
¾" through 6"
(20 mm through
150 mm)
¾" through 4"
(20 mm through
100 mm)
5" & 6"
(125 mm and 150 mm)
PARALLEL
PORT (P)
SERIES
PORT (SII)
SERIES
PORT (SI)
CONTROL MODULE
(PILOT) PORT
INLET
INTERNAL
EQUALIZATION
PASSAGE
DIRT WIPING
P
SI
SII
DISC-PISTON
EXTERNAL PILOT PIPING
PARALLEL
PORT (P)
SERIES
PORT (SII)
SERIES
PORT (SI)
CONTROL MODULE
(PILOT) PORT
AR1
AR3
SI
P
AR3
SII
PARALLEL PILOTS)
(SERIES AND
OPEN
SI
SII
AR3
INTERNAL
PLUG
(SERIES PILOTS)
AR3
P
SI
SII
(SERIES AND
PARALLEL PILOTS)
AR1
(ONE PILOT)
7
R429d
AUG 2015