ES-DuoVent
For Hydronic Heating Applications
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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 feature provide automatic air venting for hot or cold water distribution 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 displaced 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 polyethylene 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)
AAutomatic Vent (Black Cap)
BManual Vent (Red Cap)
1Shutter
2Spring
3Lever
4Float
5Shutter head
6Shutter button
DuoVent
B A
6
5
2
3
1
4
Maintenance
No maintenance is normally necessary, however the DuoVent can be disassembled for inspection or cleaning.
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 without prior notice and without incurring any obligation to make such changes and modifications on Watts products previously or subsequently sold.