Spirax-Sarco 0190190 Vacuum Break

The Spirax-Sarco 0190190 is a specialized VB14 Vacuum Breaker engineered to protect industrial steam plant and process equipment from the structural risks of vacuum formation. This 1/2 NPT brass-bodied valve is a critical safety component for condensing vapor systems, including heat exchangers, jacketed kettles, and air coils. When system pressure drops below atmospheric levels, the precision-ground stainless steel valve instantly lifts from its seat, admitting air to neutralize the vacuum and ensure proper condensate drainage. This prevents "stall" conditions and potential implosion damage in vessels. Rated for 210 psig at temperatures up to 500°F, its rugged construction features a hardened ball check design and an exfoliated graphite gasket for reliable shut-off under high-pressure saturated steam. For optimal performance, contractors should install the VB14 in a vertical orientation at the highest practical point in the piping circuit to avoid flooding the intake with condensate.

• Protects mechanical integrity by preventing unwanted vacuum conditions in heat exchangers and storage tanks.
• Improves heat transfer efficiency by preventing condensate backup and "stall" in modulating steam systems.
• Rugged industrial build featuring a corrosion-resistant brass body and durable stainless steel internals.
• High-pressure capability, suitable for saturated steam applications up to 210 psig.
• Low cracking pressure with a high flow capacity (Cv 0.625) for rapid vacuum relief.

Where is the best location to install a VB14 vacuum breaker?
Technicians should install the Spirax-Sarco VB14 at the highest point of the system or steam inlet. It must be mounted vertically with the system connection at the bottom to ensure the ball check functions correctly and prevents water-logging.

Can the internals of the 0190190 be repaired?
The VB14 series is a non-maintainable, sealed unit. If the seat becomes fouled by debris or the valve fail to seal, the entire component should be replaced to maintain system safety standards.

Is this vacuum breaker compatible with vacuum return systems?
No. These valves are designed to break a vacuum by drawing in atmospheric air. They should not be used in systems specifically designed to operate under a continuous vacuum return, as they will pull air into the return line.

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Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.