Coliter®’s two-piece ball valves offer a cost-effective, reliable solution for on/off control in water, gas, heating, and light industrial applications. Featuring a robust forged brass body split into two sections (body and end connection), these valves provide full-port flow, quarter-turn operation, and bubble-tight sealing with PTFE seats. The series includes standard models like the QT two-piece ball valve, available with lever or knob handles, and optional lockable or anti-theft versions for enhanced security. Rated at PN16 (1.6 MPa) for water and 0.1–0.5 MPa for gas service, with operating temperatures from -20°C to +80°C, they comply with GB/T 12237 and gas safety standards. Ideal for residential plumbing, HVAC branch lines, gas appliances, and equipment isolation—combining easy maintenance, compact design, and long-term leak-free performance.