PLAST-O-MATIC Vacuum Breaker: FNPT, 3 in Pipe Size, Unfinished, PVC, 36°F – 140°F
The PLAST-O-MATIC VBS300VT-PV is an FNPT atmospheric vacuum breaker with a 3 in pipe size, constructed from unfinished PVC and rated for 36°F – 140°F for back-siphonage applications.
SKU 3G-OTH-597089
Need installation or engineering help?
Ask a question
Product Description
The PLAST-O-MATIC VBS300VT-PV is an FNPT atmospheric vacuum breaker with a 3 in pipe size, constructed from unfinished PVC and rated for 36°F – 140°F for back-siphonage applications.
Frequently Asked Questions
What is a PLAST-O-MATIC VBS300VT-PV vacuum breaker used for?
The PLAST-O-MATIC VBS300VT-PV is an atmospheric vacuum breaker used to prevent back-siphonage in industrial piping systems. It is installed on water lines to protect potable water supplies from contamination, commonly in chemical processing, water treatment, and irrigation applications where PVC piping is specified.
What are the specifications of the PLAST-O-MATIC VBS300VT-PV?
The PLAST-O-MATIC VBS300VT-PV has a 3 in FNPT connection, is made of unfinished PVC, and operates in a temperature range of 36°F – 140°F. It is designed for back-siphonage prevention and is not rated for continuous pressure. The manufacturer part number is VBS300VT-PV.
Where to buy a PLAST-O-MATIC VBS300VT-PV vacuum breaker worldwide?
3G Electric supplies the PLAST-O-MATIC VBS300VT-PV vacuum breaker to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this PVC back-siphonage device.
How to install a PLAST-O-MATIC VBS300VT-PV vacuum breaker?
Install the PLAST-O-MATIC VBS300VT-PV vertically above the highest downstream outlet, with the FNPT connections properly sealed using PTFE tape. Ensure the vent opens freely and the device is not subjected to continuous pressure. Follow local plumbing codes and the manufacturer's instructions for back-siphonage prevention.
Used in
Common applications for PLAST-O-MATICPLAST-O-MATIC Products
3G Electric supplies PLAST-O-MATIC atmospheric vacuum breakers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.









