Coliter® provides reliable air vent valves to automatically or manually release trapped air from heating, solar, and closed-loop water systems—preventing airlocks, noise, and reduced efficiency. The series includes the PQ1008 automatic air release valve with float-actuated mechanism for continuous deaeration, and manual air vents (e.g., PQ1007) for periodic maintenance in radiators and manifolds. Constructed from high-quality brass with lead-free compliance (<0.25% Pb) rated for PN16 (1.6 MPa) and temperatures up to 120°C, all models feature G1/2" or G3/4" ISO 228 threads and comply with plumbing standards for potable water contact. Essential for system longevity and optimal thermal performance in residential and commercial installations.
