Coliter®’s floating ball valves offer reliable, quarter-turn shut-off for water, gas, oil, and general industrial fluid systems. The series includes the Q41F (manual), Q341F (gear-operated), Q641F (pneumatic), Q941F (electric), and metal-seated Q941H models—featuring a floating ball design that seals against downstream seat under pressure for tight closure. Constructed from forged brass, carbon steel (WCB), or stainless steel (CF8/CF8M), these valves provide full-port flow, low torque operation, and bubble-tight sealing (Class VI per ISO 5208). Rated at PN16 (1.6 MPa) (up to PN40 for steel types) and suitable for temperatures from -29°C to 180°C (higher for metal seats), they comply with GB/T 12237 and API 6D standards. Ideal for building services, chemical processing, HVAC, and utility isolation where cost-effective, durable shut-off is required.
