cashco P5 Installation, Operation & Maintenance Manual
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cashco P5 Installation, Operation & Maintenance Manual

Piston sensing single stage pressure reducing regulator
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ISO Registered Company
I. DESCRIPTION AND SCOPE
The Model P5 is a pressure reducing regulator used to control downstream (outlet or P
for gaseous or liquid services. Available in sizes 1/4" (DN8), 3/8" (DN10) and 1/2" (DN15). Refer to Technical Bulletin
P5-TB for design conditions and selection recommendations.
II. INSTALLATION
Installation of adequate overpressure pro tec tion
is recommended to pro tect the reg u la tor from
over pres sure and all down stream equip ment from
dam age in the event of regulator failure.
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-
ommended 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 outlet pressure gauge should be located ap-
proxi mately ten pipe diameters downstream, and
within sight.
5. All installations should include a downstream re lief
de vice if the inlet pressure could exceed the pres-
sure rating of any downstream equip ment or the
maximum outlet pressure rating of the unit.
6. Clean the pip ing of all foreign material including
chips, welding scale, oil, grease and dirt before in-
stalling the reg u la tor. Strainers are rec om mend ed.
INSTALLATION, OPERATION & MAINTENANCE MANUAL (IOM)
MODEL P5
PISTON SENSING SINGLE STAGE
PRESSURE REDUCING REGULATOR
CAUTION
SECTION I
SECTION II
7. In plac ing thread seal ant on pipe ends pri or 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 inlet stamp on the main regulator body (1).
9. For best performance, install in well drained hori-
zon tal pipe.
10. Basic Regulator - (Refer to Figure 2): Regulator
may be rotated around the pipe axis 360°. Recom-
mended position is with knob (4) ver ti cal upwards.
11. Regulators are not to be buried un der ground.
12. For insulated piping systems, recommendation is
to not insulate regulator.
IOM-P5
) pressure. The unit is suitable
2
02-20

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Summary of Contents for cashco P5

  • Page 1 SECTION I I. DESCRIPTION AND SCOPE The Model P5 is a pressure reducing regulator used to control downstream (outlet or P ) pressure. The unit is suitable for gaseous or liquid services. Available in sizes 1/4" (DN8), 3/8" (DN10) and 1/2" (DN15). Refer to Technical Bulletin P5-TB for design conditions and selection recommendations.

  • Page 2: Principle Of Operation

    Close the outlet (downstream) valve only observed and man u al ly reg u lat ed. Close the outlet (down stream) block valve. if reg u la tor re mov al is required. IOM-P5...

  • Page 3: Maintenance

    2. Owner should refer to owner's procedures for removal, handling, cleaning and disposal of nonreusable parts, i.e. gaskets, etc. 3. Refer to Figure 2 for Model P5 basic reg u la- 6. Clean body (1) according to owner's proce- tor and Figure 1 for the piston subassembly.
  • Page 4 NOTE: Use only parts man u fac tured range spring level; i.e. 2-100 psig (.14-6.9 Barg) and supplied by Cashco, Inc. for these products. range spring, 51 psig (3.5 Barg) test pres sure See Section VIII.

  • Page 5: Troubleshooting Guide

    B. Check system; isolate (block) flow at regulator inlet - not outlet. Relocate regulator if necessary. C. No pressure relief protection. C. Install safety relief valve, or rupture disc. D. Restricted piston movement. D. Ensure no moisture in spring chamber at temperatures below freeze point. IOM-P5...

  • Page 6: Section Viii

    Cashco, Inc. does not assume responsibility for the selection, use or maintenance of any product. Responsibility for proper selection, use and maintenance of any Cashco, Inc.
  • Page 7 Poppet --------------------------------- ‡‡ Poppet Spring ----------------------- ‡‡ Body Gasket ------------------------- ‡‡ Seat ------------------------------------ ‡‡ Seat Retainer ------------------------ ‡‡ Piston Range Spring Spring Clip Pusher Plate Back-up Ring -------------------------‡‡ Piston O-ring--------------------------‡‡ Inline Filter ---------------------------- ‡‡ Snap in cover ‡‡ Recommended Spare Part IOM-P5...
  • Page 8 ATEX 2014/34/EU: Explosive Atmospheres and Cashco Inc. Products Cashco, Inc. declares that the products listed in the table below has been found to comply with the Essential Health and Safety Requirements relating to the design and construction of products intended for use in potentially explosive atmospheres given in Annex II of the ATEX Directive 2014/34/EU.
  • Page 9 345, 345(OPT-45) BA1/BL1, PA1/PL1 C-BPV, C-PRV, C-CS D, D(CRYO), D(OPT-37), D(OPT-20), D(OPT-45) DL, DL(LCC), DL(OPT-45) BR, BR(CRYO) HP, HP(LCC), HP(OPT-45), HP(OPT46G), HP-1+6+S(OPT-40), HP-1+6+S P1, P2, P3, P4, P5, P7 B2, B7 POSR-1, POSR-2 5200P, 5300P NW-PL, NW-SO CG-PILOT RANGER, 987, PREMIER...

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