
ASTM A890 4A Wedge Gate Valve
We are a trusted provider of RTJ flanged gate valves from China, offering premium valves designed to API 600 standards. Our 18-inch (DN450) gate valves are constructed from ASTM A890 4A duplex stainless steel and rated for Class 2500 LB (PN420). These valves feature a flexible wedge, pressure seal bonnet, and RTJ flanged ends for superior performance in high-pressure environments. Built for strength and corrosion resistance, they are ideal for demanding industrial applications, providing reliable sealing and long-term durability in harsh conditions.