ZURN Double Check Backflow Preventer: 350, 3 in Pipe Size, Flange x Flange, 32 in Overall Lg
The ZURN Double Check Backflow Preventer: 350 (MPN 3-350) is a 3-inch pipe size backflow preventer with flange x flange connections and an NRS gate valve shut-off type. It features a 32-inch overall length and EPDM…
SKU 3G-OTH-439811
Also listed as: 3350 · 3 350
Local availability & support — Singapore
- Local office
- 20 Woodlands Link #09-05, Singapore 738733
- Phone
- +65 8878 8355
- Delivery
- Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
- Payment
- Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
- Ships to
- Singapore
Need installation or engineering help?
Ask a question
Product Description
The ZURN Double Check Backflow Preventer: 350 (MPN 3-350) is a 3-inch pipe size backflow preventer with flange x flange connections and an NRS gate valve shut-off type. It features a 32-inch overall length and EPDM seals, designed for industrial backflow prevention applications.
Frequently Asked Questions
What is the ZURN Double Check Backflow Preventer 3-350 used for?
The ZURN Double Check Backflow Preventer 3-350 is used to prevent reverse flow of contaminated water into potable water supplies in industrial piping systems. It is suitable for low-hazard applications where back-siphonage or back-pressure may occur, such as in commercial buildings, irrigation, and fire protection lines.
What are the specifications of the ZURN 3-350 backflow preventer?
The ZURN 3-350 has a 3 in pipe size, flange x flange connections, and an NRS gate valve shut-off type. Overall length is 32 in, with EPDM seals. It is part of the Zurn 350 series double check backflow preventers, designed for industrial backflow prevention with reliable shut-off and easy maintenance.
Where to buy the ZURN 3-350 backflow preventer worldwide?
3G Electric supplies the ZURN 3-350 double check backflow preventer to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. As a global industrial solutions provider, we source genuine Zurn equipment and can provide competitive pricing and lead times for your project.
How to install a ZURN double check backflow preventer?
Install the ZURN 3-350 in a horizontal or vertical position with adequate clearance for testing and servicing. Ensure flange connections are properly aligned and gaskets are seated. Follow local plumbing codes and manufacturer guidelines for pressure testing. Always install upstream of any shut-off valves to allow for maintenance isolation.
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.
