Velan Gate Valve, Type: Conventional Port, Vertical Bolted Bonnet, Item Name: Gate Valve, 1/4 IN Nominal, Threaded NPT Connection, 600/800 PSI, Pressure Class: Class 800, Forged Steel Body, 13% Chromium Steel Stem, 13% Chromium Steel Trim, Cobalt Chromium Alloy Seat, Material Standard: ASTM A105, API 602

• A compact but extremely sturdy design for high pressure temperature service
• Packing rings are pre-compressed in the packing chamber to ensure equal stress distribution, effectiveness of all rings and a high integrity seal
• For welded bonnet valves, the bonnet is threaded in and torqued to an engineered torque value and the body bonnet joint is strength welded, offering double protection against leakage
• CoCr alloy hard faced disc (optional) ensures low friction and long service life
• Fully guided wedge reduces wear on seating surfaces
• For Class 1500 valves and for steam service, seats are seal-welded to the body
• Repairable two-piece stem drive
• Pre-positioned field injection ports for precise application of low emissions (Low-E) injectable packing through the bonnet