Precision balancing valves for hydronic systems. Calibrated balancing valves use a multi-turn hand wheel to provide precise flow measurement. Oventrop hand wheels have a minimum rotation of seven turns to enable fine adjustment of the flow setting. The hand wheel has an integrated hidden memory stop to enable the valve to be shut-off without losing the balance position. The valve’s setting can also be locked in place with a lead sealing wire to prevent tampering. The “Hydrocontrol VTR” is constructed from bronze with dezincification-resistant brass trim. EPDM seals and a PTFE valve seat maximize performance over the life of the valve.
