Brochure

F-27855-1036
2-Way Stainless Trim
Valves with Metal Seats
MORE INFO
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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
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2-Way Stainless Trim
(Metal to Metal)
Threaded NPT
Series Part Number VB-7273-0-4- VB-7283-0-4-
Pipe Sizes
½"…2"
Stem Action
Up Open Up Closed
ANSI Pressure Class
250 psi (up to 400 psig below 150°F)
ANSI Seat Leakage
c
ANSI III
Control Media and Temperature
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low pressure, treated steam
Flow Curve
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Allowable ΔP for Water
b
87 psi (600 kPa) Max. for normal life
a
Max Inlet Pressure, saturated steam
150 psi (1034 kPa)
Max ΔP for sizing,
saturated steam
b
80% of inlet pressure up to 15 psig and 42% of absolute (gauge pressure plus 14.7)
inlet pressure above 15 psig inlet
Max ΔP at close-off,
saturated steam
b
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Size Cv Kvs Rangeability Valve Body Part Numbers
½”
0.4 0.3 5:1 VB-7273-0-4-01 VB-7283-0-4-01
1.3 1.1 15:1 VB-7273-0-4-02 VB-7283-0-4-02
2.2 1.9 25:1 VB-7273-0-4-03 VB-7283-0-4-03
4.4 3.8 40:1 VB-7273-0-4-04 VB-7283-0-4-04
¾”
5.5 4.8 50:1 VB-7273-0-4-05 VB-7283-0-4-05
7.5 6.5 60:1 VB-7273-0-4-06 VB-7283-0-4-06
1”
10 8.7 60:1 VB-7273-0-4-07 VB-7283-0-4-07
12 10.4
75:1
VB-7273-0-4-08 VB-7283-0-4-08
1¼” 20 17.3 VB-7273-0-4-09 VB-7283-0-4-09
1½” 28 24.2 VB-7273-0-4-10 VB-7283-0-4-10
2” 40 34.6 VB-7273-0-4-11 VB-7283-0-4-11
a - To minimize noise, ensure the flow rate in the piping is less than 10 ft (3m) / second and the differential pressure is less than 35 psi (241 kPa). Operating with
differential pressures above 35 psi may result in additional noise but is acceptable up to 87 psi (600 kPa). Operating within the cavitation zone may result in noise
and internal valve damage.
b - Maximum recommended differential pressure in open position. Do not exceed recommended differential pressure (pressure drop), as integrity of parts may be
affected. Exceeding maximum recommended differential pressure voids product warranty.
c - Refer to Seat Leakage Classes table.
Stainless Steel Trim Threaded with Metal to Metal Seats
2. VB-7000 Series
½"…2" Globe Valves
2. VB-7000 Series ½"…2"
Globe Valves