Watts DuoVent - Manual

A Automatic Vent
(Black Cap)
B Manual Vent
(Red Cap)
1 Shutter
2 Spring
3 Lever
4 Float
5 Shutter head
6 Shutter button
Series DuoVent
High Capacity Air Vents with
Manual Vent Feature
Sizes: 1 ⁄
8
", 1 ⁄
4
" (3, 8mm)
Series DuoVent high capacity air vents with manual vent fea-
ture provide automatic air venting for hot or cold water distribu-
tion systems. The manual vent feature provides tremendous air
elimination capability for lightening fast venting of residential
and commercial systems.
The DuoVent valve utilizes a float to actuate the valve plug
which is located at the top of the valve. Once the air is dis-
placed and the system pressure is sustained, the valve plug
seals and prevents any water from escaping from the system.
The float vent can also operate as an anti-vacuum device since
it will permit air to enter the system when it must be drained.
Features
• Body and cover are brass construction
• Air vent with silicone rubber seal
• Impurities do not usually affect function as maximum float line
of water is always lower than the valve seal
• Float is high temperature resistant polyethylene
• Suitable for use with glycol systems
Specifications
Air vent shall have brass body, cover and silicone rubber seal.
Float shall be constructed of high temperature resistant poly-
ethylene and shall be for use with glycol systems. Air vent shall
be Watts Regulator Company Series DuoVent.
Pressure – Temperature
Minimum working pressure: 1.45psi (10 kPa)
Maximum working pressure: 150psi (10 bars)
Temperature Range: 33˚F – 240˚F (5˚C – 116˚C)
Maintenance
No maintenance is normally necessary, however the DuoVent
can be disassembled for inspection or cleaning.
For Hydronic Heating Applications
ES-DuoVent
Job Name ––––––––––––––––––––––––––––––––––––––––––– Contractor ––––––––––––––––––––––––––––––––––––––––––––
Job Location ––––––––––––––––––––––––––––––––––––––––– Approval –––––––––––––––––––––––––––––––––––––––––––––
Engineer ––––––––––––––––––––––––––––––––––––––––––––– Contractor’s P.O. No. –––––––––––––––––––––––––––––––––––
Approval ––––––––––––––––––––––––––––––––––––––––––––– Representative ––––––––––––––––––––––––––––––––––––––––
Watts product specifications in U.S. customary units and metric are approximate and are provided for reference only. For precise measurements,
please contact Watts Technical Service. Watts reserves the right to change or modify product design, construction, specifications, or materials with-
out prior notice and without incurring any obligation to make such changes and modifications on Watts products previously or subsequently sold.
A B
6
5
3
4
2
1
DuoVent