User Guide

VP 658 S and VP 658 SC Powertop Sequence and Sequence Changeover Valves Technical Instructions
Document No. 155-092P25
November 20, 2008
Siemens Industry, Inc. Page 3
Table 2. Water Capacity - U.S. Gallons Per Minute.
Valve Size and Type
Pressure Differential psi
C
V
1
2
4
6
8
10
15
20
25
1/2" Sequence 1.5 2.1 3 3.7 4.2 4.7 5.8 6.7 7.5
1/2" Sequence 2.5 3.5 5 6.1 7.1 7.9 9.7 11.2 12.5
1/2" Changeover 2.5 - - - - - - - -
Table 3. Body Rating.
Temperature
°F (°C)
Pressure
psig (kPa)
ANSI Class 250
Bronze Body
-20 to 150 (-30 to 66) 250 (1720)
200 (93) 250 (1720)
250 (121) 250 (1720)
Overall rating limited to 250 psig.
Figure 1. Nominal Control Schedule.
Figure 2. Unit Conditioner Application.