Cashco SA5 - Manual

INSTALLATION, OPERATION & MAINTENANCE MANUAL (IOM) IOM-CA5/SA5
11-13
I. DESCRIPTION AND SCOPE
Models CA5/SA5 are spring operated back pressure regulators used to control upstream (inlet or P1) pressure. Sizes are
3/4" (DN20) and 1" (DN25). With proper trim uti li za tion, the unit is suitable for liquid or gaseous service. (NOTE: This
product was formerly identifi ed as a Model C5 or S5; a Model CA5/SA5 and C5/S5 are one and the same product.)
II. REFERENCES
MODEL CA5/SA5
CA5 and SA5 - ULTRA HIGH PURITY, SPRING LOADED
BACK PRESSURE REGULATORS
SECTION I
Refer to Technical Bulletin CA5/SA5-TB for tech ni-
cal specifi cations of a Model CA5/SA5 reg u la tor.
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 spring 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
DO NOT HYDROSTATIC TEST THROUGH AN
IN STALLED UNIT; ISOLATE REGULATOR FROM
TEST. The upper range spring pres sure level on
the nameplate is the rec om mend ed “upper op er-
at ing limit” for the sens ing di a phragm. Higher
pres sures could cause internal dam age.
Recommended Piping Schematic
For Back Pressure/Relief Station