Siemens 599-02005 Технічні інструкції - Сторінка 9

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Siemens 599-02005 Технічні інструкції
Powermite 599 MT Series Terminal Unit 2-way Valves
Sizing, continued
Mounting and
Installation
Parts of the Valve
Item
Part Name
1
Bonnet assembly
2
Spring
3
Wiper
4
Valve body
Siemens Building Technologies, Inc.
The following variables must be determined:
•
The medium to be controlled: water, etc.
•
The maximum inlet temperature and pressure of the medium at the valve.
•
The pressure differential that will exist across the valve under maximum load
demand.
•
The maximum capacity the valve must deliver.
•
The maximum line pressure differential the valve actuator must close against.
See Application Bulletin (AB)-1 Control Valve Selection and Sizing (155-285) for further
recommendations.
Install the valve so that the flow follows the direction of the arrow indicated on the valve
body.
For best performance, install the valve assembly with the actuator above the valve body.
The valve and actuator can be installed in any position between vertical and horizontal. It is
not recommended to install the valve assembly so that the actuator is below horizontal or
upside-down.
Allow sufficient space for servicing the valve and actuator. See Table 11 for valve body
dimensions. See Figure 4 and Table 10 for dimensions of the service envelope
recommended around the actuator.
NOTE:
Instructions for field mounting an actuator, wiring diagrams, and start-up are
covered in the Technical Instructions and Installation Instructions for each
actuator.
1
2
3
4
Normally Open
Table 9. 2-way Bronze/Forged Brass Valves.
Qty
Material
1
1
Stainless steel
1
Nylon
1
Bronze/Forged
brass
7
6
5
Item
Part Name
5
Stem and plug assembly
6
Upper guide disc
7
Retaining ring
Technical Instructions
Document Number 155-196P25
April 9, 2009
7
1
6
2
3
4
5
Normally Closed
Qty
Material
1
Stainless steel or brass
1
Brass
1
Stainless steel
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