Data Sheet for Product

Technical Instructions Flowrite VF 599 Series Two-Way Valves
Document Number 155-159P25 2-1/2 to 6-inch Flanged Iron Body
June 14, 2019
Page 2 Siemens Industry, Inc.
Specifications
Line size 2-1/2 to 6-inch (65 to 150 mm)
Capacity See Table 4 through Table 7, and Figure 2
Body style Flanged
Seat style Single seat, metal-to-metal
Action Normally Closed (NC)
Normally Open (NO)
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 3
Material
Body Cast iron ASTM A126 Class B
Body trim See Table 1 and Table 2.
Stem Stainless steel ASTM A582 Type 303
Packing
Normal duty packing Double EPDM O-rings
Steam packing Teflon® V-rings/EPDM O-ring
Controlled medium Saturated steam, water,
glycol solutions to 50%
Medium temperature range
Normal duty packing 20°F to 250°F (–7°C to 120°C)
Steam packing 337°F (170°C) maximum
Operating
Maximum inlet pressure
Water See Table 3.
Steam 100 psig (689 kPa)
Maximum recommended differential pressure for modulating service
Bronze Trim
Stainless Steel Trim
Liquid
25 psi (173 kPa)
50 psi (345 kPa)
Steam
15 psi (103 kPa)
50 psi (345 kPa)
Rangeability >100:1
Close-off pressures See Table 8 and Table 9, and Figure 3.
Close-off ratings According to ANSI/FCI 70-2
Leakage rate Class IV (0.01% of Cv)
Flow characteristics See Table 1 and Table 2.
Miscellaneous
Canadian Registration Numbers 0H7645.5…
0C0838.9…
Mounting location NEMA 1 (interior only)
Flange mounting according to ANSI B16.1 See Cast Iron Flange Dimensions for 2-1/2
through 6-inch Valves Technical Bulletin
(155-303P25 [TB 248])
Dimensions See Table 13 and Table 14, and Figure 7.
Face-to-face dimensions ANSI/ISA S75.03
Valve weight See Table 14.