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Air Release & Sludge Drain Valve Manufacturer – Composite & Quick Opening Types

Coliter® offers specialized exhaust valves and sludge valves to maintain efficiency and reliability in water supply, fire protection, and wastewater systems. Our automatic exhaust valves—including single-port (QB1), quick-release (KB1), and compound types (CARX1.0)—eliminate trapped air to prevent airlocks, corrosion, and pressure surges. Our sludge discharge valves, such as the JM744X quick-opening mud valve and JM644X hydraulic-pneumatic angle valve, enable rapid sediment removal from tanks and pipelines with minimal water loss. All models feature robust cast iron construction, reliable float mechanisms, and compliance with municipal engineering standards.