Technical Instructions
VVP45… and VXP45... Series Two-port and Three-port Seat Valves
Document Number CM1N4845E-P25
ANSI Class 250
Rev. 4, February, 2002
Page 2
Siemens Building Technologies, Inc.
Fluids
Hot water: to maximum 230°F (110°C), short-term to maximum 248°F (120°C)
Chilled water: over 36°F (2°C)
Water-glycol solutions
Operating Pressure
Maximum 1600 kPa (16 bar) and ANSI Class 250
Table 1. Product Numbers.
Actuator
Positioning
Force
Line Size
mm
(inch)
Connection
ISO Thread
GPM
Straight-
through
VVP45…
(2-port)
∆
p
s
(psi)
GPM
Bypass
VXP45…
(3-port)
∆
p
max
psi
45lbf 67 lbf
1.1
VVP45.10-0.25
0.79
VXP45.10-0.25
SSB
SSC
1.8
VVP45.10-0.4
1.23
VXP45.10-0.4
2.8
VVP45.10-0.63
1.90
VXP45.10-0.63
4.4
VVP45.10-1
3.08
VXP45.10-1
10 (.394)
G 1/2-inch
7.0
VVP45.10-1.6
87
4.93
VXP45.10-1.6
15 (.5906)
G 3/4-inch
11.0
VVP45.15-2.5
58
7.71
VXP45.15-2.5
20 (.7874)
G 1-inch
17.6
VVP45.20-4
58
12.33
VXP45.20-4
29
∆
p
=
>29 psi increases risk of noise and seat-plug erosion
∆
p
s
=
Close-off pressure
∆
p
max
=
Maximum permissible differential pressure across closed valve with actuator
Cv
=
Nominal flow at pressure drop of 1 psi
Ordering
When ordering, give quantity, product number and name of valve.
Example: 1 VXP45.10-1 three-port valve
Valves, actuators and screwed fittings are packed separately.
Equipment
Combinations
Valves V…45.10-0.25 to V…45.25-6.3 are operated with SSB actuators (see data sheet
CA1N4891.1E-P25 and CA1N4891.2E-P25) or SSC actuators. Valves V…P45.25-10,
V…45.32-16 and V…P45.40-25 are only operated with SSC actuators.
Actuator
Operating
Voltage
Control Run
Time
(Seconds)
Positioning
Force
GPM
SSB61...
24 Vac
0 to 10 Vdc
75 45
lbf
27.7
SSB81...
3-Point
150
SSC61...
0 to 10 Vdc
30 67
lbf
110
SSC81...
3-Point
150
