Product Overview

VBN2, VBN3 CONTROL BALL VALVES WITH THREADED CONNECTIONS
5 62-2648
Table 4. Model Selection.
Application Notes
IMPORTANT
Valve sizing is important for correct system operation.
Undersized valves do not have sufficient capacity at
maximum load. Oversized valves do not have
sufficient authority over the load in modulating
applications.
Oversized valves can initiate cycling and the seat and
ball can be damaged because of the restricted
opening.
Proper Use
These valves are only for use in cold, warm, hot water systems
and for steam applications. They are designed for a medium
temperature range of from 35 to 250°F, at a maximum pressure
of 360 psig VBN valves are to be operated with the appropriate
Honeywell direct coupled actuators only.
Water should be properly filtered, treated and conditioned
according to local conditions and the recommendations of the
boiler or chiller manufacturers. The installation of a strainers
and filters is recommended.
IMPORTANT
The presence of excessive iron oxide (red rust) in the
system voids the valve warranty.
Valve Fitting Body/Flow Type Size
C
V
T/P Trim Enclosure Actuator
VB = valve, ball
N = Female NPT threaded
2 = 2 way equal percentage, or linear flow characteristic, as noted in Table 1.
3 = 3 way mixing equal percentage, or linear flow characteristic, as noted in Table 2.
inch S.I. metric
A— 1/2 DN15
B— 3/4 DN20
C— 1 DN25
D— 1-1/4 DN32
E— 1-1/2 DN40
F— 2 DN50
G— 2-1/2 DN65
H— 3 DN80
B
C
V
Designator
See Table 1 for Two-way valves.
See Table 2 for Three-way valves.
C
D
E
F
….
T
U
1
2
3 = ANSI 300 Valve construction
P = Plated (chrome or nickel)
S = Stainless Steel
0 = no enclosure
R = NEMA 3R enclosure
X = no actuator
A = NSR, Floating
B = NSR, Modulating
C = SR, 2-Position, 24 Vac
D = SR, Floating/Modulating
VB N 2 A B 3 P 0 A