Normally Open Vent Valve
APPLICATION
The V4297S provides the vent function in a double block and
bleed configuration. The valve is part of the Honeywell
Integrated Valve Train System, which allows gas train
components to be directly bolted together.
V4297S
PRODUCT DATA
FEATURES
• Used with natural, manufactured, mixed or liquefied
petroleum (LP) gases.
• V4297S valves are normally open valves to be used as
vent valves in double block and bleed
configurations. The gas flows through the vent
connection when the valve is not energized.
• V4297S are used with 110/120Vac 50/60Hz
controllers.
•Two valve body types (small and large)
applicable to seven pipe sizes:
Small body type for 3/4 in. (19 mm), 1 in. (25 mm),
1-1/4 in. (32 mm), 1-1/2 in. (38 mm) and
2 in. (51 mm) pipes.
Large body type for 2 in. (51 mm),
2-1/2 in. (64 mm) and 3 in. (76 mm) pipes.
• Small body has a 1 in. NPT threaded vent connection.
Large body has a 1-1/4 in. NPT threaded vent
connection.
•Two 1/4 in. NPT threaded pressure taps available for
the small body valve, three for the large body valve.
• NEMA 1 enclosure standard.
• V4297S is not gas flow direction dependent. It can be
connected either way in the valve train.
• Unpainted die-cast aluminum body.
® U.S. Registered Trademark
Copyright © 1999 Honeywell Inc. • All Rights Reserved
65-0244
V4297S NORMALLY OPEN VENT VALVE
SPECIFICATIONS
IMPORTANT
The specifications in this publication do not include
normal manufacturing tolerances; therefore, an
individual unit may not exactly match the
specifications listed. Also, this product is tested and
calibrated under closely controlled conditions, and
some minor differences in performance can be
expected if those conditions are changed.
Models:
V4297S Normally Open Vent Valve.
Type of Gas:
Natural, manufactured, mixed or liquefied petroleum (LP) only.
Gas Train Pipe Size:
3/4 in. (19 mm), 1 in. (25 mm), 1-1/4 in. (32 mm),
1-1/2 in. (38 mm), 2 in. (51 mm), 2-1/2 in. (64 mm),
3 in. (76 mm).
Pipe Threads:
Small Body: 1 in. NPT threaded vent connection.
Large Body: 1-1/4 in. NPT threaded vent connection.
Operating Pressure Rating:
Maximum: 5 psi.
Material:
Die-cast aluminum.
Mounting:
Bolted to Integrated Valve Train components.
Mounting Position:
Vertical to 90 degrees from vertical. See Fig. 1.
Valve Capacity through Vent Connection:
Ratings: 1 in. (0.25 kPa) pressure drop for gas with 0.64 sp gr.
Small Body: 714 cfh.
Large Body: 1115 cfh.
Bolt/Nut Fasteners:
Bolts, nuts and O-rings are provided with the safety shutoff
valves.
Tapping and plug:
Taps:1/4 in. NPT taps.
Plugs: Allen head.
Ambient Operating Temperature Rating:
-40°F to +145°F (-40°C to +63°C).
Fig. 1. Mounting positions for V4297S
Normally Open Vent Valve.
Electrical Terminations:
Screw terminal connections.
Current Draw:
V4297S small body, 120V: 0.2A.
V4297S large body, 120V: 0.34A.
Valve opening time: < 1 sec.
Valve closing time: < 1 sec.
Dimensions:
See Fig. 2 and 3.
M16462
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 Home and Building Control Sales Office (check white pages of your phone directory).
2. Home and Building Control Customer Logistics
Honeywell Inc., 1985 Douglas Drive North
Minneapolis, Minnesota 55422-4386
In Canada—Honeywell Limited/Honeywell Limitée, 35 Dynamic Drive, Scarborough, Ontario M1V 4Z9.
International Sales and Service Offices in all principal cities of the world. Manufacturing in Australia, Canada, Finland, France,
Germany, Japan, Mexico, Netherlands, Spain, Taiwan, United Kingdom, U.S.A.
65-0244
2
V4297S NORMALLY OPEN VENT VALVE
3/8 (10)
(3 HOLES)
2-5/8
(69)
9-1/2
(241)
3-1/8
(79)
3/8 (10)
1/2 (13)
1/2 (13)
7/8 (22)
4-1/8
(105)
3-1/8 (79) 5 (127)
3/8
(10)
1/2
(13)
1-1/4
(32)
2 (51)
1-1/2
(32)
3/16 (5)
1-1/4
(32)
1-15/16 (49)
2-3/8 (60)
M16464
2 (51)
1 IN. NPT
Fig. 2. Approximate dimensions of smaller V4297 NOVV in in. (mm).
3
65-0244