User Guide

F-24386-2 © Copyright 2008 TAC All Rights Reserved. 3
Rangeability
Rangeability is the ratio of rated flow to the minimum controllable flow through a valve.
The nominal rangeability for VB-9223 series valves is 75:1.
Temperature/Pressure Ratings
See Figure-2 for temperature and pressure ratings. Consult the appropriate valve linkage
general instruction sheet for the effect of valve body ambient temperatures on specific
actuators. Ratings conform with published values and disclaimer.
VB-9223-0-4-P (Screwed Cast Bronze Body)
Standards: ANSI B16.15–1985
Materials: ASTM B584-93b: UNS C83450, UNS C83600, or UNS C84400
VB-9223-0-5-P (Flanged Cast Iron Body)
Standards: ANSI B16.1–1993
Materials: ASTM A126-93 Class B
Figure-1 Typical Equal Percentage Flow Characteristics.
Flow
Stroke
Closed
Open
100%
90%
80%
70%
60%
50%
40%
30%
20%
10%
0%
0%
10% 20% 30% 40% 50% 60% 70% 80% 90%
100%
Figure-2 Temperature and Pressure Ratings
for VB-9223 Series Valve Bodies.
50
(345)
250 (121)
200 (93)
150 (65)
100 (38)
50 (10)
300 (149)
150
(1034)
250
(1724)
350
(2458)
100
(689)
Pressure — psig (kPa)
Temperature — °F (°C)
200
(1379)
300
(2068)
400
(2758)
Maximum Media
Temperature
281°F (138°C)
Minimum Fluid
Temperature
40°F (4°C)
321 psig
(2218 kPa)
169 psig
(1166 kPa)
VB-9223-0-4-P
VB-9223-0-5-P