Cashco SCV-S - Manual (Page 2)

IOM-SCV-S 2
Figure 1: Installation Orientation
SECTION III
SECTION IV
IV. INSTALLATION
A. Orientation:
1. Standard orientation is with the yoke with
position indicator plate and valve body outlet
port in same plane. If an alternate ar range-
ment is necessary, loosen yoke nut (8)
se cur ing yoke (3) to valve bonnet (2) ap prox i-
mate ly three revolutions. Rotate actuator as-
sembly (AA) to de sired po si tion with re spect to
body as sem bly (BA). Re-tighten yoke nut (8)
to 85 ft-# (115 N M). NOTE: This pro ce dure
can be done in-line.
2. Valve body must be installed in a horizontal or
vertical plane where the outlet connection fl ow
direction is down wards or horizontal. Failure
to comply will cause the self-draining of the
internal passages to be nullifi ed, allowing CIP
clean ing/fl ushing fl uids to be ponded. See
Figure 1.
A. Clean-in-Place (CIP):
1. Control valve unit must be properly oriented
per Sec tion IV.A. to assure self-draining of
valve’s internal pas sag es.
2. Control valve unit comes in the direct action,
ATC-FO arrangement or the reverse action,
ATO-FC ar range ment. Valve should be in
the full open po si tion before initiation of the
CIP pro ce dure. Control system must ac com-
mo date this ca pa bil i ty.
3. Cleaning fl uid may fl ow in either direction.
4. Cleaning fl uid pressure must not exceed 50
psig (3.4 Barg).
5. Cleaning fl uid temperature must not exceed
366°F (186°C).
6. Cleaning fl uid must be compatible with wetted
ma te ri als.
III. OPERATION CONSIDERATIONS
B. Steam-in-Place (SIP):
1. Orientation to be same as CIP,Section III.A.1.
2. Steam may fl ow from either direction.
3. Recommended 30 psig @ SAT (2.1 Barg @
SAT). Valve must be in the full open during
the SIP pro ce dure.
C. Hose-Down Cleaning:
1. Standard Model SCV-S control valve units
supplied with I/P positioners are NOT de signed
to allow hose-down wash ing of the unit’s ex-
te ri or.
D. Instrument Air Supply - IAS:
1. For Model SCV-S with a positioner rec om mend
using cryogenically pro duced nitrogen gas,
or oil-free com pressed air des ic cant dried to
-40°F(-40°C) dew point, fi l tered to 10 mi crons
or less as the IAS source.
2. All exhaust/vent air utilized by the Model
SCV-S unit enters the ambient en vi ron ment.
VERTICAL DOWN
OUTLET
HORIZONTAL
OUTLET
Straight Pattern Angle Pattern