A Peek into VB14 and VB21 Vacuum Breakers
Guide on Installing VB14 and VB21 Vacuum Breakers
These special vacuum breakers are built for condensing vapor/steam or liquid systems. While VB14 is fashioned from Brass, VB21 boasts Stainless Steel in its construction, each offering different pressure thresholds to cater to unique applications.
| Breaker | Max Operating Pressure (barg) | Max Operating Pressure (psig) | Size | Connection Type ||---------|-------------------------------|--------------------------------|------|-----------------|| VB14 | 14 | 203 | 1/2″ (DN15),1/8″ (DN6) | NPT, BSP || VB21 | 21 | 304 | Size Varying (depending on app) | NPT, BSP, Flanged (for larger applications) |
The Differences between VB14 and VB21
Each breaker's compositional material may vary based on manufacturing standards and specific applications. Brass and Stainless Steel, or even ABS in some cases, are common materials due to their durability and resistance to corrosion.
Both models can operate under varying pressure thresholds, yet VB21, as designed for more high-demand tasks, might be capable of higher pressure capabilities.
Installation and Maintenance Sharing some Light
These vacuum breakers need to be installed vertically, with the system connection positioned at the bottom. On steam systems, they should be installed at the highest point to prevent flooding, ensuring safe and efficient operation.
Remember to always isolate potential risks, such as vents, protective devices, or alarms, when closing isolation valves. Prior to performing any maintenance, be sure to isolate and safely vent the pressure, even if a pressure gauge indicates zero.
Before starting any installation, educate yourself on the Safety Information provided. Proceed with caution, prioritizing both your safety and system integrity.
A Step-by-Step Guide to Install VB14 and VB21
- Verify your breaker's specification, including material, pressure, and temperature ratings to ensure they adhere to the maximum allowable system limits.
- Verify the flow direction for proper installation orientation.
- Remove protective covers from all connections, as well as any protective films on nameplates, especially on steam or high temperature applications.
- Install the device vertically, with the system connection at the bottom.
- (Additional steps may apply based on specific manufacturer instructions or application requirements)
Follow these guidelines, the included nameplate, and Technical Information Sheet. Check the product's compatibility with the intended application. Consult the manufacturer directly for detailed specifications and any other queries.
Stay safe, smart, and always in compliance!
The industrial applications for VB14 and VB21 vacuum breakers extend to both condensing vapor/steam and liquid systems, with each model offering different pressure thresholds made possible by their respective materials – Brass (VB14) and Stainless Steel (VB21). The financial investment in these breakers is justified by the durability and corrosion resistance they provide, with ABS occasionally used as well. While VB14 operates efficiently under lower pressure thresholds, the high-demand VB21 model might exhibit greater pressure capabilities, making it suitable for energy-intensive tasks.
