cashco CA-2 설치, 운영 및 유지보수 매뉴얼

{카테고리_이름} cashco CA-2에 대한 설치, 운영 및 유지보수 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. cashco CA-2 10 페이지. Back pressure / relief regulators

페이지 인쇄

ISO Registered Company

DESCRIPTION AND SCOPE

Models CA-1 and CA-2 are back pressure/relief regulators used to control upstream (inlet or P

CA-1 – 1/8" and 1/4" (DN6 and DN8); for CA-2 – 3/8" and 1/2" (DN10 and DN15). Both models are bronze bodied

units. With proper trim utili za tion, both units are suitable for liquid and gaseous service. Refer to Tech ni cal Bul le tin

CA-TB for specific design conditions and selection rec om men da tions.

The instructions in this manual will pertain to both models, unless otherwise stated.

This is not a safety device and must not be sub sti tut ed for a code approved pressure

safety relief valve or rupture disc.

II. INSTALLATION

1. An inlet block valve should always be in stalled.

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 inlet pressure gauge should be located

ap proxi mately ten pipe diameters upstream, and

within sight. An outlet pressure gauge is op tion al.

5. All installations should include an upstream

safe ty relief de vice if the inlet pressure could

ex ceed the pres sure rating of any equip ment or

the max i mum inlet pres sure 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 destroy

dia phragms.

DO NOT HYDRO STATIC TEST THROUGH

AN IN STALLED UNIT; ISO LATE FROM TEST.)

INSTALLATION, OPERATION & MAINTENANCE MANUAL

MODELS CA-1 AND CA-2

BACK PRESSURE / RELIEF REGULATORS

WARNING

SECTION I

CAUTION

SECTION II

Recommended Piping Schematic For Back Pressure/Relief Station

6. Clean piping of all foreign material including chips,

welding scale, oil, grease and dirt before installing

the regulator. Strainers are rec om mend ed.

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 regulator upon

startup.

8. Flow Direction: Install so the flow di rec tion

aligns with the word "IN" stamped on the body.

Con nect the inlet pres sure to the body (1) side

connection(s). Fluid will relieve out the bottom

IOM-CA

02-20

) pressure. Sizes for