S3000 valves are supplied as standard with graphite stem packing and body seal. Valves are certified fire safe. In the event of fire, after heat destroys the primary resilient seat, the ball makes contact with the secondary metal seat, forming a secure seal. The graphite body seal prevents external leakage. The graphite live-loaded stem packing prevents stem leakage. All valves have anti-static devices as standard, grounding ball and stem to body.Seal Welded Design (S3000 only)Eliminates the possibility of the body tail piece unthreading. This design eliminates any possible leakage at the body joints, assuring safe pressure containment.Automatic welding equipment is used for welding body joints. The welding width is always uniform and the weld penetration is consistent. During the seal welding process, our equipment maintains a consistent water flow inside the valve, assuring a safe temperature, and preventing damage to all valve seats and seals.Design Features:Seal welded body (S3000 only)Blow-out proof stem designNACE MR0175-90Heavy-duty, rugged constructionLive-loaded stem packingLockable handlesAPI 607-5th edition fire safeAPI 608 complianceAnti-static groundActuator mounting padCasting traceabilityFoundry heat # for all valvesMetal nameplates identify all soft parts