Coliter® provides robust industrial ball valves engineered for high-pressure, large-diameter, and critical service applications in water, oil, gas, and district heating systems. Our portfolio includes trunnion mounted ball valves (Q47/Q347 series) with double block-and-bleed for DN50–DN1400, floating ball valves (Q41/Q341) for general isolation, fully welded ball valves (Q41F-25/40CS) for direct burial in pipelines, anti-theft ball valves (QA series) with concealed operation, and two-piece designs (QT) for cost-effective maintenance. All valves feature fire-safe design, full or reduced bore options, and compliance with GB/T 12237 and ISO 17292 standards.
