Siemens 599-10302 Petunjuk Teknis - Halaman 9
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Halaman Cetak
599 Series 2-Way Ball Valves
Operation
Mounting and
Installation
Service
Page 9
The parabolic shape of the flow characterizer orifice (Figure 2) provides a slowly
opening valve. Equal movements of the valve stem, at any point of the flow range,
change the existing flow an equal percentage regardless of the existing flow. The ball
valve equal percentage flow characteristic (Figure 3) mirrors the flow characteristic of a
coil, resulting in linear heat transfer.
BALL
FLOW
OPTIMIZER
Figure 2. Ball Valve Flow
Characterizer.
Install the valve so that the flow follows the
direction of the arrow cast on the valve
body.
For added flexibility, the actuator mounting
plate can be installed in any of the four (4)
rotation angles relative to the valve body.
For best performance, install the valve
assembly with the actuator above the
valve body.
The valve and actuator assembly can be
installed in a horizontal pipe in any position
between vertical and 90°.
The ball valve also can be installed
vertically.
CAUTION:
Do not install the valve assembly
so that the actuator is below
horizontal or upside-down.
See Ball Valve Bracket Kit
Installation Instructions 129-496
for complete and proper
installation and mounting
instructions.
Allow sufficient space for servicing the
valve and actuator. See Figure 5 and
Table 9 for valve body dimensions and
service envelope.
Replace the valve if inoperable.
100
90
80
70
60
50
OPENING
40
30
20
10
0
0 10 20 30 40 50 60 70 80 90 100
Figure 3. Ball Valve Equal Percentage
Figure 4. Mounting Positions.
Technical Instructions
Document Number 155-703P25
October 1, 2010
PERCENT OF
BALL OPENING
Flow Control.
TOP VIEW
IEMEN
END VIEW
SIDE VIEW
Siemens Industry, Inc.