Watts SVS - Manual

For Steam Heating Applications
ES-SV
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Job Location –––––––––––––––––––––––––––––––––––––––––– Approval ––––––––––––––––––––––––––––––––––––––––––––––
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Approval ––––––––––––––––––––––––––––––––––––––––––––– Representative –––––––––––––––––––––––––––––––––––––––––
Series SV
Non-Vacuum Float Type,
Steam Air Vents
Series SV Non-Vacuum Float Type Steam Air Vents are
designed to vent air on non-vacuum steam heating systems.
Used on radiators, convectors and steam mains.
Model SV
For ordinary one-pipe steam systems not requiring proportional
venting, (Non-Adjustable).
1 ⁄
8
" (3mm) angle connection
Model SVA
Adjustable air vent for proportional venting to steam heating
systems.
1 ⁄
8
" (3mm) angle connection
Models SVS-1, SVS-2
Non-adjustable air vents for steam system.
1 ⁄ 8 " and 1 ⁄ 4 " (3 and 8mm) straight connections
Model SVS-3
Straight connection, non-adjustable vent for mains.
1 ⁄
2
", 3 ⁄
4
" (15, 20mm)
SVA
SVS-2
Typical Installations
Watts Air
Vent
*See Note
3 ⁄ 4 " (20mm) Nipple
Supply Main
1-Pipe or
dry return
2-Pipe
15" (381mm) Min.
Boiler Water Line
Reducer
Wet
Return
18" (457mm) Min.
Nipple 6" to 10"
(150 to 250mm)
*See Note
Main Vent
Watts
Radiator
Valve
Supply Main
pitch piping down from here
*Add additional
vents as required.
One-Pipe Radiator System
" Fitting 3 ⁄ 4
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 incur-
ring any obligation to make such changes and modifications on Watts products previously or subsequently sold.