6in 450 DC SS Body N Pattern NRS Gates Flng X Flng

The Zurn Wilkins 450ST Stainless Steel n-Pattern Double Check Valve Assembly is ideal for new or direct drop-in replacement, delivering convenience without compromise. Compact and reliable, this double check valve assembly withstands the corrosive effects of water and protects against both backsiphonage and backpressure of polluted water into the potable water supply. The patented AR spool offers flexibility in replacing older models with different lay lengths and maintains agency approvals when installed by the factory.

• For use with potable water pipes with a 6 in. diameter
• NRS shut-off valves
• Superior stainless steel body resists corrosion and extends the life of the product
• Small, compact footprint allows for direct drop-in replacement
• Time-tested check and relief valve components ensure easy maintenance and more water system uptime
• Patented compound checks provide ultra-low pressure drop as documented by approval authorities, reducing the need for a booster pump
• Patented AR spool for drop-in replacements, matching lay-lengths of common n-pattern valves
• AR spool maintains agency approvals when installed by the factory
• Backflow setter eliminates the need for concrete thrust blocks, allowing for easier installation and lower cost
• Available in sizes 4 in. through 10-in.