Coliter® provides a full series of butterfly valves designed for reliable flow isolation and regulation in municipal water, HVAC, fire protection, and industrial systems. Our range includes wafer-type centerline valves (D71X, D371X) for compact installation, flanged soft-seal valves (D341X) with EPDM/NBR seats for zero leakage, flanged hard-seal valves (D343W) for high-temperature service, and double eccentric designs (D342X, SD342X telescopic type) for reduced wear and extended life. Available in ductile iron or stainless steel bodies, sizes DN50–DN1200, all compliant with GB/T 12238 and suitable for pressures up to 16 bar.
