NICHOLSON Atmospheric Vacuum Breaker, Steam Service: MNPT, 1/2 in Pipe Size, For Steam Media
The NICHOLSON Atmospheric Vacuum Breaker (MPN VB0500-SS) is a 1/2 in pipe size unit with MNPT steam service, designed for steam media up to 350°F. 3G Electric interprets this demand and delivers the genuine NICHOLSON…
SKU 3G-OTH-597032
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Product Description
The NICHOLSON Atmospheric Vacuum Breaker (MPN VB0500-SS) is a 1/2 in pipe size unit with MNPT steam service, designed for steam media up to 350°F. 3G Electric interprets this demand and delivers the genuine NICHOLSON part, backed by our specialist depth in controls across 14 industrial departments.
Frequently Asked Questions
What is a NICHOLSON Atmospheric Vacuum Breaker used for?
The NICHOLSON Atmospheric Vacuum Breaker (VB0500-SS) prevents back-siphonage in steam systems by admitting air when pressure drops. It is used in steam service applications up to 350°F, protecting piping and equipment from vacuum damage in industrial plants.
What are the specifications of the NICHOLSON VB0500-SS?
The NICHOLSON VB0500-SS is a 1/2 in pipe size atmospheric vacuum breaker with MNPT steam service connections. It is designed for steam media at temperatures up to 350°F. The manufacturer part number is VB0500-SS, and it is not for non-steam media.
Where to buy a NICHOLSON Atmospheric Vacuum Breaker worldwide?
3G Electric supplies the genuine NICHOLSON VB0500-SS Atmospheric Vacuum Breaker to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us to order this steam-service vacuum breaker for your industrial application.
How to install a NICHOLSON Atmospheric Vacuum Breaker?
Install the NICHOLSON VB0500-SS in a vertical position above the highest point of the system, with the vent facing downward. Use pipe sealant on the 1/2 in MNPT threads. Ensure the unit is accessible for inspection and not subjected to backpressure exceeding its design limits.
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Common applications for NICHOLSONNICHOLSON Products
3G Electric supplies NICHOLSON atmospheric vacuum breakers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.




