VRN Pressure Independent Control
Valves and Actuators
PRODUCT DATA
FEATURES
• Sizes from 1/2 to 3 in. with internal (female) NPT
connections.
• Controls hot or chilled water with up to 50% glycol.
• Regulated flow rates available from 1 to 95 gpm.
• Differential pressure regulator for constant pressure
drop across valve seat.
• Positive pressure, rolling diaphragm regulator design
for flow control accuracy of ±5%.
• Equal percentage flow characteristic using patented
flow control ball insert.
• Multiple maximum flow rates available per valve size.
• Patented ball seals for low operating torque.
• Nickel-chrome plated brass or stainless steel trim.
• Choice of factory-installed actuation using
Honeywell MVN or MN/MS series direct coupled
actuators: Floating, Modulating (2-10 V), Non-Spring
APPLICATION
The VRN2 two-way dynamic pressure-regulating control
valves maintain constant flow of hot or chilled water with
glycol solutions up to 50% in closed-loop heating,
ventilating, and air conditioning systems, within the
specified pressure drop ranges of each model number.
These valve assemblies can be ordered with or without
factory-mounted actuators.
Return and Spring Return.
• Spring return actuators field-configurable for
normally open or normally closed fail-safe position.
• Removable, manual operating handle to control
valve during installation or in an event of power
failure.
• Upstream Test Port for venting or pressure gauge
attachment.
• Three actuator orientations on the valve for cramped
spaces.
• Integral snubber eliminates effect of system
pressure fluctuations and entrapped air while
improving flow performance.
35 lb-in. (4 N m) up to 3 in. (≤DN80).
27 lb-in. (3 N m) up to 1-1/4 in. (≤DN32).
Fail Safe: MSXX05*
Non-Fail Safe: MVN & MNXX05*
* These actuators are available as factory-installed
assemblies.
See Table 1 for all available options.
Approvals Standards
Actuators: See literature for the given actuator.
bearings.
®
ORDERING INFORMATION
When purchasing replacement and modernization products from your TRADELINE® wholesaler or distributor, refer to the
TRADELINE® Catalog or price sheets for complete ordering number. If you have additional questions, need further
information, or would like to comment on our products or services, please write or phone:
1. Your local Honeywell Environmental and Combustion Controls Sales Office (check white pages of your phone
directory).
2. Honeywell Customer Care
1985 Douglas Drive North
Golden Valley, Minnesota 55422-4386
3. http://customer.honeywell.com or http://customer.honeywell.ca
International Sales and Service Offices in all principal cities of the world. Manufacturing in Belgium, Canada, China,
Czech Republic, Germany, Hungary, Italy, Mexico, Netherlands, United Kingdom, and United States.
38-00032—032
Table 1. VRN Model Selection.
Model Selection: Pressure Independent Control Valve
VRN PRESSURE INDEPENDENT CONTROL VALVES AND ACTUATORS
Valve
Fitting
Body/Flow Type
Size
Max flow rate
Trim
Actuator Adapter
ActuatorFail PositionAccessories
VR - Pressure Independent Control ValveMVN613A0000*
N- Female NPT threadedMVN643A0000*
2- 2 wayMVN713A0000*
MN6105A1011
(Leave blank)
= Fail in place
MN6105A1201
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)
xxx.xx - Max flow rate designator
See Table 4.
P - Plated Brass
S - Stainless Steel
A - Standard Base
X - MN/MS DCA
Actuator Bracket
MN7505A2001
MN7505A2209
MS7505A2030
MS7505A2130
MS8105A1030
MS8105A1130
MS4105A1030
MS4105A1130
MS7103A2021*
MS7103A2221*
MS3103A1023*
MS3103A1223*
MS7503A2021*
FSO = Fail Safe Open
FSC = Fail Safe Closed
MS7503A2221*
VR N 2A 001.00 PA+ MVN613A0000++ C1
Example part number: VRN2A001.00PA+MVN613A0000+C1
* Only compatible with valves 1-1/4” or smaller.
(Leave blank)
C1
- 1 meter cable
C3
- 3 meter cable
(Leave blank)
= No cable
= No
encolsure
3R - NEMA 3R Enclosure
(Leave blank)
= 3 ft cable
standard
338-00032—03
VRN PRESSURE INDEPENDENT CONTROL VALVES AND ACTUATORS
Table 2. Actuator Control Description.
ActuatorControl
MVN613A0000
MVN643A0000
MVN713A0000
Floating, Two-position (SPDT) (90 sec. timing), 24 V, Fail in Place
Floating, Two-position (SPDT or SPST) Fast Acting (30 sec. timing), 24 V, Fail in Place
0(2)-10 Vdc Modulating, 24 V, Fail in Place
MN6105A1011Floating, Two-position (SPDT), 24 V, Fail in Place
MN6105A1201Floating, Two-Position (SPDT), 24 V, Fail in Place with end switches
MN7505A20010(2)-10 Vdc Modulating, 24 V, Fail in Place
MN7505A22090(2)-10 Vdc Modulating, 24 V, Fail in Place with end switches