Data Sheet for Product

599 Series 3-Way Ball Valves Technical Instructions
Document Number 155-201
May 28, 2020
Siemens Industry, Inc. Page 5
Operation
The parabolic shape of the control port (A – AB) flow optimizer orifice (Figure 3)
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 4) mirrors the flow
characteristic of a coil, resulting in linear heat transfer.
Figure 3. Ball Valve Flow Optimizer.
Figure 4. Ball Valve Equal Percentage
Flow Control.
Mounting and
Installation
• Install the valve so that the flow follows
the direction of the arrow cast on the
valve body.
NOTE: Note: Valves with body part
numbers -103xx may be
installed as diverting valves.
• For added flexibility, the actuator
mounting plate can be installed in any
of the four (4) rotation angles relative
to the valve body. See Figure 5.
• 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°.
Do not install the valve assembly so
that the actuator is below horizontal or
upside-down.
• The ball valve also can be installed
vertically.
• Allow sufficient space for servicing the
valve and actuator. See Figure 6 for
valve body dimensions and service
envelope.
Figure 5. Mounting Positions.
Service
Replace the valve or actuator if inoperable.