cashco 5381 Installatie-, bedienings- en onderhoudshandleiding
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ISO Registered Company
PRESSURE REDUCING SANITARY REGULATOR
I. DESCRIPTION AND SCOPE
Model 5381 is a pressure reducing regulator used to control downstream (outlet or P
size is 1/2" (DN15) with Tri-Clamp
Bulletin 5381-TB for specific design conditions and selection recommendations.
II. INSTALLATION
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.
1. An inlet block valve should al ways be installed
upstream of the regulator.
2. If service application is continuous such that
shut down is not readily accomplished, it is rec-
ommended that an inlet block valve, outlet block
valve, and a manual bypass valve be installed.
The maximum outlet pressure is list ed on the
name plate as the upper range spring pres sure
level, and is the rec om mend ed "upper operative
limit" for the sens ing diaphragm (see Sec tion IV.
Startup, Step 7). Higher press ures could dam age
the di a phragm. (Field hydro static tests fre quent ly
destroy dia phragms. DO NOT HYDRO STATIC TEST
THROUGH AN IN STALLED UNIT; ISO LATE FROM
TEST.)
INSTALLATION, OPERATION & MAINTENANCE MANUAL (IOM)
MODEL 5381
connections. The 5381 incorporates a stainless steel body. Refer to Tech ni cal
®
CAUTION
CAUTION
SECTION I
SECTION II
Supply
@ P
1
Blowdown-Drain
3. An outlet pressure gauge should be located
ap proxi mately ten pipe diameters downstream, and
with in sight.
4. All installations should include a downstream re lief
device if the inlet pressure could exceed the pres sure
rating of any downstream equip ment or the maximum
outlet pressure rating of the unit.
5. Flow Direction: Install so the flow direction match es
the arrow stamped on the regulator body.
6. Install in well drained hori zon tal pipe, properly trapped
with spring chamber (2) in the vertical position to allow
for proper draining.
) pressure. Inlet and outlet
2
Model
5381
Recommended Piping Schematic
For Pressure Reducing Station
IOM-5381
02-20
Outlet
@ P
2
SRV
P
1
Bypass
Blowdown-Drain