Flowrite™ 599 Series High Pressure Close-Off Two-Way Valves 2-1/2 to 6-inch
Technical Instructions
Flanged Iron Bodies ANSI Classes 125 and 250
Document Number 155-758
June 14, 2019
Siemens Industry, Inc.
Page 3
Specifications
Valve size
2-1/2 to 6-inch (65 to 150 mm)
Capacity
See Tables 5 and 6, and Figure 2
Body style
Flanged
Seat style
Single seat, metal-to-metal
Action
Normally Open (NO)
Normally Closed (NC)
Stem travel (stroke)
2-1/2 and 3-inch
3/4-inch (20 mm)
4, 5, and 6-inch
1-1/2-inch (40 mm)
Valve body rating
ANSI Class 125 and 250; see Table 4
Material
Body
Cast iron ASTM A126 Class B
Body trim
Stainless steel
Stem
Stainless steel ASTM A582 Type 303
Packing
EPDM O-ring
Controlled medium
Water, 50% water-glycol solutions
Medium temperature range
20°F to 250°F (-7°C to 120°C)
Operating
Maximum recommended differential
pressure for modulating service
50 psi (345 kPa)
Rangeability
>100:1
Close-off pressures
See Tables 7 and 8
Close-off ratings
According to ANSI/FCI 70-2
Leakage rate
Class IV (0.01% of Cv)
Flow characteristic
Equal Percentage
Miscellaneous
Canadian Registration Numbers
0H7645.5
0C0838.9
Mounting location
NEMA 1 (interior only)
Flange mounting according to ANSI B16.1
See 155-303P25 (TB 248)
Dimensions
See Tables 14, and Figure 7
Face-to-face dimensions
ANSI/ISA S75.03
Valve weight
See Table 14
Accessories
Figure 1. Stem Heating Element.
ASZ6.6
The stem heating element
prevents the formation of ice on the stem
when the medium temperature drops
below 32°F (0°C). It is suited for universal
use with valves having a stem or spindle
diameter of 10 or 14 mm.
Operating Voltage
24 Vac/dc ± 20%
Power consumption
≤ 40 VA/30W
St
