User Guide

Technical Instructions Flowrite VF 599 Series Three-Way Valves
Document Number 155-185P25
April 9, 2007
Page 2 Siemens Building Technologies, Inc.
Specifications
Material
Line size 1/2 to 2 inches (15 to 50 mm)
Capacity See Tables 2 and 3 and Figure 3
Body style Globe style control valve with two
connection options; see Table 1
Seat style Metal-to-metal
Action Three-way mixing
Valve body rating ANSI Class 250; see Table 4
Stem travel (Stroke) 3/4-inch (20 mm)
Body UNS CA 844 bronze
Body trim See Table 1
Stem Stainless steel ASTM A582 Type 303
Packing EPDM O-ring
Operating
Controlled medium Water, glycol solutions to 50%
Medium temperature range 20°F to 250°F (-7°C to 120°C)
Maximum inlet pressure See Table 4
Maximum recommended differential pressure for modulating service
Bronze trim 25 psi (173 kPa)
Stainless Steel trim 50 psi (345) kPa)
Rangeability > 100:1
Close-off pressures See Tables 5, 6, and 7 and Figure 4
Close-off ratings According to ANSI/FCI 70-2
Leakage rate Class IV (0.01% of Cv)
Flow characteristics Equal percentage for NC
Linear for NO
Mounting location NEMA 1 (interior only)
Miscellaneous
Canadian Registration Numbers 0H7645.5
0C0838.9
Dimensions See Tables 8 and 9 and Figure 6
Valve Weight See Table 9