cashco 1164 Посібник з монтажу, експлуатації та технічного обслуговування
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ISO Registered Company
BACK PRESSURE / RELIEF REGULATOR
I. DESCRIPTION AND SCOPE
The Model 1164 is a modulating back pressure relief regulator used to control upstream (inlet) pressure. Sizes are
3/4", 1", 1-1/2" and 2" (DN 20, 25, 40 and 50) for side (inlet, flow-through,) and bottom (discharge) connections.
With proper trim utilization the unit is suitable for liquid, gaseous, or steam service. Refer to Technical Bulletin
1164-TB for design conditions and selection rec om men da tions.
This is not a safety device and must not be substituted for a code approved pressure safety relief valve or a rupture disc.
II. INSTALLATION
1. An inlet block valve should always be installed.
2. If service application is continuous such that
shut down is not readily accomplished, it is
rec om mend ed that an inlet block valve, outlet block
valve, and a manual bypass valve be installed.
3. Pipe unions should be installed to allow removal
from piping.
4. An inlet pressure gauge should be located
ap prox i mate ly ten pipe diameters upstream and
within sight. An outlet pressure gauge is optional.
5. All installations should include an upstream relief
device if the inlet pressure could exceed the
pressure rating of any equipment or the maximum
inlet pressure rating of the unit.
The maximum inlet pressure is equal to 1.5 times
the larger number of the stated range spring on the
name plate, and is the rec om mend ed "upper op er a tive
limit" for the sens ing diaphragm. Higher press ures could
dam age the di a phragm. (Field hydro static tests fre quent ly
de stroy dia phragms. DO NOT HYDRO STATIC TEST THRU
AN IN STALLED UNIT; ISO LATE FROM TEST.)
6. Clean the piping of all foreign material including
chips, welding scale, oil, grease and dirt
before installing the regulator. Strainers are
rec om mend ed.
INSTALLATION, OPERATION & MAINTENANCE MANUAL (IOM)
MODEL 1164
WARNING
SECTION I
CAUTION
SECTION II
7. In placing thread sealant on pipe ends prior to
en gage ment, ensure that excess material is
re moved and not allowed to enter the regulator
upon startup.
8. Flow Direction: Install so the flow direction match es
the arrow cast on the body. Connect the inlet
pressure to the body side connection(s). Fluid will
relieve out of the bottom connection. The double
inlet con nec tions are for in-line in stal la tion (plug
one side connection if in-line in stal la tion is not
required).
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.
IOM-1164
CAUTION
11-16