Technical Instructions
Document No. 155-199P25
October 24, 2005
Page 2
Siemens Industry, Inc.
Ordering a Valve
Plus Actuator
Assembly
To order a complete valve plus actuator assembly from the factory, combine the
actuator prefix code with the suffix of the valve assembly product number. See
Technical Bulletin (TB) 252
(155-307P25) for selection procedure and ordering codes.
Valve assemblies can be ordered using the numbers in Table 1.
Specifications
Line size
1/2 to 1 inch (15 to 25 mm)
Capacity
See Tables 3 and 4 and Figure 1
Body style
Globe
Seat style
Metal-to-metal
Action
Three-way mixing
Valve body rating
ANSI Class 250; See Table 2
Stem travel (Stroke)
7/32-inch (5.5 mm)
Material
Body
UNS CA844 bronze
or forged brass C37700
Body trim
Brass
Stem
Stainless steel ASTM A582 Type 303
Packing
Ethylene propylene O-ring
Operating
Controlled medium
Water, glycol solutions to 50%
Medium temperature range
35°F to 250°F (2°C to 120°C)
Maximum inlet pressure
See Table 2
Maximum recommended differential pressure
for modulating service
25 psi (173 kPa)
Rangeability
Cv <1
>50:1
Cv >1
>100:1
Close-off pressures
See Table 5 and Figure 2
Close-off ratings
According to ANSI/FCI 70-2
Leakage rate
Class IV (0.01% of Cv)
Flow characteristics
Linear
Miscellaneous
Canadian Registration Numbers
0H7645.5
0C0838.9
Mounting location
NEMA 1 (interior only)
Dimensions
See Tables 6 and 7 and
Figures 4 and 5
Valve Weight
See Table 6
Service Kit
Protective black knob
to cover the bonnet
and threads
4 268 8895 0
