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VB14 / VB21 – Brass / Stainless Steel Spirax Vacuum Breaker

Manufactured by Spirax Sarco, the VB14 and VB21 vacuum breakers are used on steam systems and heat exchangers. When these are turned off they still contain a certain amount of steam. The steam condenses as the vessel cools down and since condensate occupies a much smaller volume than steam, vacuum conditions are generated.

Size & Connections
15mm (1/2″) • BSP Threaded (NPT on request)
Duty
Steam Systems
Materials
Brass or Stainless Steel Body • Stainless Steel Internals
Max Working Pressure
Brass : 14 Bar • Stainless Steel : 21 Bar
Max Working Temperature
Brass : 260°C @ 7 Bar • Stainless Steel : 400°C @ 13 Bar
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VB14 / VB21 – Brass / Stainless Steel Spirax Vacuum Breaker