COMFORT Thermostat Valve Body Series AV 9 DN20 (3/4) Straight Pattern

Thermostatic Valve AV 9 for manual hydraulic balancing. For use in two-pipe central heating systems with forced circulation. With externally readable, continuous pre-setting. Pre-setting can be changed under system pressure using a service tool or an open-end wrench SW 13. Valve insert can be replaced without draining the system. Brass fitting, with nickel-plated housing, spindle made of stainless steel. Connection for threaded and compression fittings. Tested and approved according to EN 215. All AV 9 thermostatic valves have a white protective cap with 3 front-side ribs. Thermostat thread connection: M 30 x 1.5