Radiator Valve Diagram - Identify Bleed, Control & Lockshield Valves #228579 (License: Personal Use)

The image is a schematic illustration of a single-panel steel radiator, highlighting three critical components used in central heating systems. The bleed valve at the top right allows air to escape, the manual control valve at the bottom right regulates flow via a handwheel, and the lockshield valve at the bottom left is used for balancing the system. All parts are clearly labeled for educational or DIY troubleshooting purposes.

This image is commonly used on plumbing, HVAC, or home improvement websites to support articles about radiator bleeding, system balancing, or thermostat valve replacement. It serves users seeking to understand or fix common heating issues.