Cashco PGR-1 - Manual

INSTALLATION, OPERATION & MAINTENANCE MANUAL (IOM) IOM-PGR-1
03-14
I. DESCRIPTION AND SCOPE
Model PGR-1 is a pressure reducing regulator used to control downstream (outlet or P2) pressure. Sizes are
1/2" (DN15), 3/4" (DN20), 1" (DN25), 1-1/2" (DN40), 2" (DN50), 3" (DN80) and 4" (DN100). This model is applied
primarily in gaseous service.
MODEL PGR-1
DIRECT-ACTING, PRESSURE LOADED
PRESSURE REDUCING REGULATOR
II. REFERENCES
Refer to Technical Bulletin PGR-1-TB for tech ni cal
specifi cations 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.
CAUTION
Installation of adequate overpressure pro tec tion is recom-
mended 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-1