Cashco SAP - Manual

INSTALLATION, OPERATION & MAINTENANCE MANUAL (IOM) IOM-SAP
11-13
I. DESCRIPTION AND SCOPE
Model SAP is a piston operated, pressure reducing regulator used to control downstream (outlet or P2) pressure. Sizes are
3/4" (DN20), 1" (DN25), 2" (DN50), 3" (DN80) and 4" (DN100).
II. REFERENCES
MODEL SAP
ULTRA HIGH PURITY, PRESSURE LOADED
PRESSURE REDUCING REGULATOR
SECTION I
Refer to Technical Bulletin SAP-TB for tech ni cal
specifi cations.
ABBREVIATIONS
CCW – Counter Clockwise
CW – Clockwise
ITA – Inner Trim Assembly
SECTION III
SECTION II
III. INSTALLATION
1. Install per direction of fl ow arrow indicated on
body, or "IN" and "OUT" markings.
2. Regulator may be rotated around pipe axis 360
degrees. For ease of maintenance, the rec om-
mend ed orientation is with the loading chamber
(4) upwards.
3. Provide space below, above, and around reg u la tor
for removal of parts during maintenance.
4. Install block valves and pressure gauges to pro-
vide means for adjustment, operation, bypass, or
removal of the regulator. A UHP fi lter is rec om-
mend ed before inlet to remove typical pipe line
debris from entering valve and damaging internal
“soft goods”, primarily the dynamic seal and valve
seat.
CAUTION
Installation of adequate overpressure pro tec tion
is recommended to pro tect the reg u la tor and all
downstream equip ment from dam age in the event
of reg u la tor failure.
CAUTION
DO NOT HYDROSTATIC TEST THROUGH AN
IN STALLED UNIT; ISOLATE REGULATOR FROM
TEST. The "Outlet" rating as printed on the name-
plate is the rec om mend ed “upper op er at ing limit”.
Higher pres sures could cause internal dam age.
In ad di tion, note on the nameplate that the Inlet
and Outlet pres sure and temperature ratings are
at different levels.
Recommended Piping Schematic
for Pressure Reducing Station