ZURN Double Check Backflow Preventer: 350AST, 10 in Pipe Size, Flange x Flange
The ZURN 350AST is a 10-inch double check backflow preventer with flange x flange connections and NRS gate valve shut-off valves. This model, MPN 10-350AST, has an overall length of 55.75 inches.
SKU 3G-OTH-439822
Need installation or engineering help?
Ask a question
Product Description
The ZURN 350AST is a 10-inch double check backflow preventer with flange x flange connections and NRS gate valve shut-off valves. This model, MPN 10-350AST, has an overall length of 55.75 inches.
Frequently Asked Questions
What is the ZURN 10-350AST double check backflow preventer used for?
The ZURN 10-350AST double check backflow preventer is used in commercial and industrial water systems to prevent reverse flow of contaminated water into the potable supply. It is commonly installed in fire sprinkler, irrigation, and high-hazard plumbing applications where a 10-inch pipe size and flange connections are required.
What are the specifications of the ZURN 10-350AST backflow preventer?
The ZURN 10-350AST has a 10-inch pipe size, flange x flange connections, and an overall length of 55.75 inches. It features NRS gate valve shut-off valves and is manufactured under MPN 10-350AST. This double check assembly is designed for high-flow commercial systems and meets industry backflow prevention standards.
Where to buy the ZURN 10-350AST backflow preventer worldwide?
You can source the ZURN 10-350AST double check backflow preventer through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we supply genuine ZURN components for commercial water systems.
How to install a ZURN double check backflow preventer?
Install the ZURN double check backflow preventer in a horizontal or vertical orientation with adequate clearance for maintenance. Ensure flange gaskets are aligned and bolts are torqued evenly. Always install downstream of a shut-off valve and test per local codes. Consult the manufacturer's manual for specific NRS gate valve operation and testing procedures.
Used in
Common applications for ZURNZURN Products
3G Electric supplies ZURN zurn double check backflow preventers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.










