Three-piece medium-pressure ball valve designed for demanding applications and precision instrumentation for the chemical, petrochemical, pharmaceutical, energy, and process engineering industries – for liquids and gases. Intended for pipeline installation. The valve features a large size range to ensure sufficiently high flow, tight shut-off (permissible internal leakage through the ball seal 0.1 Ncm³/min), high durability, and low torque. Each valve is pressure tested with nitrogen. Certified according to ISO 15848-1:2006 (E). The valve lever with a lock is standardly yellow, with oval-shaped levers available. Body material: AISI 316 steel (ASTM A351 CF8M, casting). Connection material: AISI 316 steel (ASTM A351 CF3M, casting). Ball and stem material: AISI 316 steel. Lever material: AISI 304 steel, PVC. Ball seal: PTFE (standard); versions with different sealing materials with higher parameters available (modified PTFE, PTFE with stainless steel powder, UHMWPE, PEEK). Stem seal: MG1241 (PTFE with fiberglass and graphite) / PTFE (standard). Working pressure (dependent on temperature/sealing material – see chart): up to 103 bar (PTFE). Operating temperature (dependent on sealing material – see chart): up to +186°C (PTFE). Connection: GW NPT. NOTES! Ball valves are designed to operate in a fully open or fully closed position. The valves have factory-adjusted packing seal for a pressure of 70 bar. Due to varying operating conditions, periodic adjustment of the stem seal may be required using the stem sealing screw (after removing the lever). Preliminary adjustment is recommended before starting the installation.