Brochure

37F-27855-10
VBS-9263 ½” & ¾” 2-Way Stainless
Valve Bodies with Soft Seats
2-Way Stainless Trim & Body Soft
Seats
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Series Part Number VBS-9263-0-4-xx
Pipe Sizes
½” & ¾”
Stem Action
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Seats
316 Stainless on PTFE
ANSI Pressure Class
300 psi (up to 400 psig below 150°F)
ANSI Seat Leakage
b
ANSI IV
Control Media and Temperature
20…400°F (-7 to 204°C)
Flow Curve
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Allowable ΔP for Water
35 psi (241 kPa) Max. for normal life
a
Max Inlet Pressure, saturated steam
100 psi (690 kPa)
Max ΔP for sizing, saturated steam
80% of inlet pressure up to 15 psig and 42% of abso-
lute (gauge pressure plus 14.7) inlet pressure above
15 psig inlet - Refer to steam charts.
Max ΔP at close-off, saturated steam
Inlet pressure (100 psi) (actuator must be rated to
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temperature
Size Cv Kvs Rangeability Valve Body Part Numbers
½”
0.1 0.087 5:1 VBS-9263-0-4-31
CAUTION:
Pressure reducers
do not lower
temperatures from
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
valve actuators
that withstand
actual pipe
temperatures near
the boiler output
temperature.
0.22 0.19 5:1 VBS-9263-0-4-33
0.3 0.26 5:1 VBS-9263-0-4-34
0.4 0.3 5:1 VBS-9263-0-4-1
0.75 0.65 15:1 VBS-9263-0-4-35
0.95 0.82 15:1 VBS-9263-0-4-36
1.3 1.1 15:1 VBS-9263-0-4-2
1.75 1.5 25:1 VBS-9263-0-4-37
2.2 1.9 25:1 VBS-9263-0-4-3
2.8 2.4 35:1 VBS-9263-0-4-38
3.25 2.8 35:1 VBS-9263-0-4-39
3.6 3.0 35:1 VBS-9263-0-4-4
¾”
4.3 3.7 40:1 VBS-9263-0-4-45
5.0 4.1 40:1 VBS-9263-0-4-5
6.2 5.0 50:1 VBS-9263-0-4-6
a - Operating within the cavitation zone or an operating differential pressure above 35 psi (241
kPa) may result in noise and internal valve damage.
b - Refer to Seat Leakage Classes table.
316 Stainless Bodies with Soft Seats
Seat Leakage Classes
ANSI/FCI 70-2
Leakage Class
Maximum Seat Leakage
Class II
0.5% of rated Cv
Class III
0.1% of Rated Cv
Class IV
0.01% of Rated Cv
Class V
0.0005 ml per minute per inch of
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2. VB-7000 Series
½"…2" Globe Valves
2. VB-7000 Series ½"…2"
Globe Valves