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Data Sheet for Product

ManualsBrandsSiemens ManualsControl Valves1/2" 2-Way Normally Open Globe Valve Body, Female x Female (1 Cv)
123456
Technical Bulletin
Document No. 155-307P25
February 9, 2018
Page 2 Siemens Industry, Inc.
Valve Sizing
Use Figure 1, the water capacity graph, to begin valve sizing.
1. Locate 20 gpm (4.5 m
3
/h) on the vertical axis to find the required flow.
2. Read across the horizontal axis to find 5 psi (35 kPa), the maximum allowable
pressure drop across the open valve.
Select a 1-inch (25 mm) 10 Cv (8.5 Kvs) line size valve because the point of
intersection falls close to the 1-inch line.
Actuator Selection
Use Figure 2, the close-off pressure graph for actuators on two way valves, to choose
an actuator.
1. Locate the graph for the actuator on a two-way, NC valve in the upper left of the
figure.
2. Locate the bar for 3/4 to 1-inch valves.
Notice that SSB… has the sufficient force to provide tight close-off against more
than 15 psi (1 bar) differential.
Product Number
Selection
Use Table 1.
Begin at the left and select the specifications necessary.
1. Select a two-way, normally closed, and FxF for female by female NPT threads,
according to the specifications.
2. Select the 1-inch line size determined from the sizing example above.
3. The valve part number is 599-01114.
4. Read across the top of the table to Electronic-mechanical, 24 Vac, 3P control
signal.
5. The actuator part number is SSB81U.
6. The actuator code number is 254.
7. Read down the column to determine the valve and actuator assembly product
number is 254-01114.
NOTE: The valve and actuator can be ordered separately by using the part numbers
from steps 2 and 3.
Disposal
The actuators are considered electrical and electronic equipment for disposal
in terms of the applicable European Directive and may not be disposed of as
domestic garbage.
• Dispose of the actuators through channels provided for this purpose.
• Comply with all local and currently applicable laws and regulations.
Do not dispose of valves as household waste.
• Special handling of individual components may be mandated by law or make
ecological sense.
• Observe all local and currently applicable laws and regulations.