Cashco SCV-S - Manual

INSTALLATION, OPERATION & MAINTENANCE MANUAL (IOM)
SECTION I
I. DESCRIPTION AND SCOPE
Model SCV-S is a pneumatically actuated, globe-style
con trol valve for throttling sanitary or biotechnological
ap pli ca tions. The globe body comes in two variations
- straight-globe pattern and angle-globe pattern, sizes
3/4" - 1-1/2" (DN20 - DN40) with standard Tri-Clover®
sanitary end connections. The valve is available in
either a metal or composition seat construction. The
wetted metallic body portion is of forged 316L SST
mechanically and electro-polished to a 10 micro-inch
R
a
fi nish.
A fi eld reversible actuator, Model C27 is mounted
to the body.
Failure position is determined by actuator for:
"D" = Direct action; on increasing air loading pressure,
the actuator stem extends. Fail-safe position is with
the stem retracted.
"R" = Reverse action; on increasing air loading pres-
sure, the actuator stem retracts. Fail-safe position is
with the stem extended.
The standard actuator stem-to-valve stem connection
is a screwed joint design; Opt.-68 Quick Disconnect
Joint is also available.
II. REFERENCE
Refer to Technical Bulletin SCV-S-TB for complete
tech ni cal specifi cations.
www.cashco.com/techbulletins/scvs.pdf
Refer to following Installation, Operation & Main te-
nance Manuals (IOM’s) for the actuator and/or devices
that maybe mounted to a Model SCV-S:
Actuators: www.cashco.com/IOM/C27-C53.pdf
Positioners:
P/P: www.cashco.com/techbulletins/9540l.pdf
I/P: www.cashco.com/techbulletins/srd991.pdf
I/P: www.cashco.com/iom/PS2iom.pdf
ABBREVIATIONS
ATC-FO - Air to Close, Fail Open
ATO-FC - Air to Open, Fail Close
CCW - Counter-Clockwise
CIP
- Clean-in-Place
CW - Clockwise
DIR - Direct Acting
IAS - Instrument Air Supply
REV - Reverse Acting
SIG - Output Signal from Instrument
SIP - Steam-in-Place
V - Vent
Straight Body Pattern
with ATC - FO Actuator
IOM-SCV-S
12-13
MODEL SCV-S
GLOBE-STYLE - SANITARY
PNEUMATIC CONTROL VALVE
BODY IOM
SECTION II