Vacume Brakers – SV Series
Chemline SV Series vacuum breaker valves are designed as one way valves, opening only when process pressure drops in order to allow air/gas into the process. Its operation is simple as the ball is held at the top of the vertically mounted valve by a coated spring.
Once process pressure drops, the ball comes off the top seal and allows air/gas into the process. When the vacuum has been broken, the spring pushes the ball against the top seal to close the valve and isolate the process.



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Size:3/8" to 3"
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Ends:Spigot, Socket, Threaded, Flanged
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Seals:FPM (Viton®)
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Spring:ECTFE (Halar®) Coated Steel
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Ball/Float:PP
3/8" to 3"
Spigot, Socket, Threaded, Flanged
FPM (Viton®)
ECTFE (Halar®) Coated Steel
PP
Features & Benefits
- Opening Pressure
0.75 psi (0.05 bar) - Operation
Medium controlled.
Low maintenance.
High level of operating safety and long service life.
Technical Documents
Commonly used in these markets
Environmental
Process Industrial
Chemical, Storage & Transport
Valve Specification Guide
Engineering specifications are crucial as they provide precision, clarity, quality assurance and compliance in your projects. Download to save you time and assure accuracy in your specifications.
Chemical Resistance Guide
Corrosion resistance is an important factor in selecting the right material of construction for valves, pipe, tubing, fittings and more. Designed to easily navigate, this guide can be downloaded for easy reference.
Materials of Construction
Understanding materials of construction is essential to the accurate selection of valves, pipe, tubing, fittings and more. Designed to easily navigate, this guide can be downloaded for easy reference.