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Gate Valve Resilient Seated OS&Y Type Flanged Ends

The 3299-365-FLA is an Outside Screw & Yoke (OS&Y) rising stem gate valve engineered for fire protection service up to a working pressure of 365 psi. Conforming to AWWA C515 and BS 5163 standards, it features a ductile iron body and bonnet coated inside and out with RAL 3002 fusion-bonded epoxy, an AISI 304 stainless steel stem, and an EPDM-encapsulated ductile iron wedge for bubble-tight isolation. The valve carries cULus Listing and FM Approval across sizes from 2" (DN50) to 12" (DN300) with universal flanged drilling (ANSI B16.1 Class 125, ANSI B16.5 Class 150, EN1092-2 PN16, and BS10 Table D/E).

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Gate Valve Resilient Seated OS&Y Type Flanged-Mechanical Joint Ends

The 3299-365-FM is an OS&Y rising stem gate valve configured with one flanged end and one mechanical joint end conforming to AWWA C111/A21.11. Built for 365 psi working pressure and certified by cULus and FM, it is constructed from ductile iron (ASTM A536) protected by fusion-bonded epoxy (RAL 3002), an EPDM-encapsulated wedge, and a corrosion-resistant stainless steel stem. Available in sizes 3" (DN80) through 12" (DN300), it bridges flanged plant equipment or pit installations directly to mechanical-joint underground fire supply piping.

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Gate Valve OS&Y Type Flanged Ends

The 3299-L series covers large-diameter Outside Screw & Yoke rising stem gate valves rated at 250 psi for sizes 14" to 18" (DN350–DN450) and 200 psi for sizes 20" to 24" (DN500–DN600). Built to AWWA C515 and BS 5163 with flanged ends, it uses an ASTM A536 ductile iron body and bonnet, RAL 3002 fusion-bonded epoxy coating, an EPDM-encapsulated ductile iron wedge, and a high-strength stainless steel stem. These valves carry cULus Listing, FM Approval, and NSF certification for high-capacity fire service headers and municipal intake lines.

OS&Y Gate Valve List

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