The gate valves provided by Weldon mainly include bolted bonnet wedge gate valves and pressure seal bonnet gate valves, which are widely used in gas, petrochemical, oil, offshore, power station and refining industries. The gate valve is usually divided into rising stem gate valves and nor-rising stem gate valves. Product Range: Size: 2" - 60" (DN50 - DN1500) Pressure Rating: Class 150 LB - 2500 LB (PN16 - PN420). Material: Carbon steel, Stainless steel, Alloy steel, etc. Connection End: BW, RTJ, Flanged. Operation: Handwheel, Gearbox, Electric, Pneumatic. Design & Manufacture Standard: API 600, ASME B16.34, DIN 3352, EN 1984, Bolted bonnet, pressure bonnet, bellow seal bonnet, high / low temperature extended bonnet and ISO 15848 fugitive emission designed valves are available upon different request of services. Test Standard: API 598, EN 12266.