Submittal Sheet

VBN THREADED CONTROL BALL VALVES AND ACTUATORS
9 63-4378EFS—04
Effective C
V
For effective C
V
s for Honeywell control ball valves when used
with pipe reducers, refer to the Product Data sheet form no.
62-2648.
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 cause excessive 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, and hot water
systems. Not suitable for oil, combustible gases, or steam.
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.
Required Operating Torque
Both Honeywell non-spring return MVN and spring return low
torque direct coupled actuators can be utilized with the VBN2
and VBN3 valves. VB valves use a patented seat design that
reduces the torque needed from the actuator.
Table 7. Close-off, Differential Pressure Ratings.
TYPICAL SPECIFICATIONS
Valve Actuator
Direct coupled actuator shall accept analog modulating
[(0)2-10 Vdc], floating (tri-state), or two-position signal as
indicated in the control sequence. Actuators shall be by
Honeywell. Actuator shall provide minimum torque required
for full valve shutoff position. Wiring terminals shall be
provided for installation to control signal and power wiring.
Actuator shall be available with housing suitable for outdoor
installation.
Accessories Identification tags shall be available for all valves;
tags shall be indelibly marked with C
V
, model number, and tag
location.
Ball Valve
Valve housing shall consist of forged brass rated at no less
than 360 psi at 250°F. Standard valve ball shall consist of
chemically nickel-plated brass. Manufacturer shall be able to
provide optional 316 stainless steel ball and stem for 2-way
valves. Valve shall have a blow-out proof stem with two EPDM
O-rings with minimum 600 psi rating. Manufacturer shall be
able to provide glass-filled polymer ball insert to make flow
control equal percentage. Valves shall be Honeywell. The
2-way valves shall have EPDM O-rings behind ball seals to
allow for a minimum close-off pressure of 100 psi with
actuator which provides 35 lb-in. torque for 1/2 to 3 in. sizes.
Valve shall be available with a minimum of 53 unique C
V
values. Valve shall be available with threaded (FNPT) end
connections. The 3-way valves shall be installed in a “T”
configuration with actuator perpendicular to shaft. Valve shall
not require elbows of any kind. The 3-way valves shall have
EPDM O-rings behind ball seals to allow for a minimum close-
off pressure of 40 psi with an actuator that provides 35 lb-in.
torque for 1/2 to 2-1/2 in. sizes. The 3-way valves must be
available in both mixing and diverting configurations and shall
be available with a minimum of 42 unique C
V
values. Valve
shall be available with threaded (FNPT) end connections.
Valve
Type Valve Size (in.)
Close-off Pressure
Rating (psid)
2-way 1/2, 3/4 130
1, 1-1/4, 1-1/2, 2, 2-1/2, 3 100
3-way 1/2, 3/4, 1 50
1-1/4, 1-1/2, 2, 2-1/2 40
NOTE: 3-way close-off ratings apply to 3-way valves
with the B port plugged