Cashco 1000 HP Basic - Manual

IOM-1000HP-
Basic
12-13
MODEL 1000HP - BASIC
PRESSURE REDUCING REGULATOR
SECTION I
I. DESCRIPTION AND SCOPE
The Model 1000HP is a pressure reducing regulator used to control downstream (outlet or P
2
) pressure to levels
between 10 and 300 psig (0.7-20.6 Barg). Sizes are 1/2", 3/4", 1", 1-1/4", 1-1/2" and 2" (DN15, 20, 25, 32, 40 and
50).
The unit is designed for liquid, gaseous or steam service with proper trim utilization, and proper jet selection.
Refer to Technical Bulletin 1000HP-TB for sizing, application and selection recommendations.
Installation, operation and maintenance manuals (IOM's) also exist for the following other Model 1000 products:
1000LP-Basic 1000HP-Differential 1000HP-Cryogenic
SECTION II
II. INSTALLATION
1. An inlet block valve should always be installed.
An outlet block valve is recommended.
2. If service application is continuous such that
shut down is not readily accomplished, it is rec-
om mended that an inlet block valve and a man u al
bypass valve be installed.
3. Pipe unions must be installed to allow removal
from piping. Trim can only be changed by unit
removal from pipeline. If fl anges are utilized, a
lap joint fl ange is required on the inlet end of the
regulator to help align bolt holes as the cylinder
screws into place.
4. An outlet pressure gauge should be located ap-
prox i mate ly ten pipe diameters down stream, and
with in sight.
5. All installations should include a downstream re-
lief de vice if the inlet pressure could exceed the
pressure rating of any downstream equip ment or
the maximum outlet pressure rating of the unit.
Recommended Piping Schematic
For Pressure Reducing Station
INSTALLATION, OPERATION & MAINTENANCE MANUAL
CAUTION
The maximum outlet pressure listed on the name-
plate is the “upper operative limit” for the sens ing
di a phragm. High er pres sures could damage the di a -
phragm. (Field hy dro static tests fre quent ly de stroy
dia phragms. DO NOT HY DRO STAT IC TEST THRU
AN IN STALLED UNIT; ISO LATE FROM TEST.)
CAUTION
For welded installations, all internal trim parts,
seals and diaphragm(s) must be removed from
regulator body prior to welding into pipeline. The
heat of fusion welding will damage non-metallic
parts if not removed. NOTE: This does not apply
to units equipped with extended pipe nipples.
CAUTION
Installation of adequate overpressure protection
is recommended to protect the regulator from
overpressure and all downstream equipment from
damage in the event of regulator failure.
6. Clean the pip ing of all foreign material in clud ing
chips, welding scale, oil, grease and dirt before
installing the regulator. Strainers are rec om-
mended.