INSTALLATION, OPERATION & MAINTENANCE MANUAL (IOM)
IOM-PGR-2
10-22
I. DESCRIPTION AND SCOPE
Model PGR-2 is a pressure reducing regulator used to control downstream (outlet or P2) pressure. Sizes are
3/8" (DN10), 1/2" (DN15), 3/4" (DN20), 1". This model is applied primarily in gaseous service.
MODEL PGR-2
PRESSURE LOADED
PRESSURE REDUCING REGULATOR
II. REFERENCES
Refer to Technical Bulletin PGR-2-TB for tech ni cal
specifications for this reg u la tor.
ABBREVIATIONS
CW –
Clockwise
CCW –
Counter Clockwise
ITA
–
Inner Trim Assembly
III. INSTALLATION
SECTION III
SECTION II
SECTION I
1. Regulator may be rotated around pipe axis 360
degrees. For ease of maintenance, the rec om-
mend ed position is with the cover dome (2)
up wards.
2. Provide space below, above, and around reg u la-
tor for removal of parts during maintenance.
3. Install block valves and pressure gauges to pro-
vide means for adjustment, operation, bypass,
or removal of the regulator. A pipeline strainer
is recommended before inlet to remove typical
pipe line debris from entering valve and damaging
internal “soft goods”, primarily the dynamic seal.
4. The PGR-2 is designed to regulate pressure
via external sensing. Use 3/8" or 1/2" (DN10 or
DN15) outer di am e ter tubing to connect the sens-
ing port on the pilot to the piping down stream of
the main regulator. If PGR-2 is constructed with
self contained feature - tubing and connection in
downstream piping is not required.
CAUTION
Installation of adequate overpressure pro tec tion is
recommended to pro tect the reg u la tor from overpressure
and all down stream equip ment from damage in the event
of regulator failure.
Model PGR-2
ISO Registered Company
