Bonomi, a manufacturer of a large selection of brass and steel in-line check valves, has recently earned the NSF 61/372 certification for their S250 series stainless steel in-line check valves. These valves are now certified for potable water and lead-free applications. All six sizes of the series have been certified lead-free to NSF/ANSI 61 by the methods prescribed in NSF/ANSI 372.
Bonomi S250 series check valves feature a cold-formed 316 stainless steel body. The metal forming process allows an improved flow profile inside the valve body to minimize head loss. The S250 series is electron beam welded at the end cap-to-body connection, creating a unibody for leak-free service. The low-cracking 1/2-PSI spring-loaded FKM (Viton) seat provides high flow capacity, minimal head loss and dependable, bubble-tight protection against reverse flow.
The valves are rated to 250 WOG with an operating temperature range of -4° F to 302° F.
