Danfoss 4" Flanged STVA Balancing Valve

Danfoss STV series of balancing valves provide testing and balancing of circuit flow for hydronic heating or cooling systems. STV valves provide a high level of balancing accuracy using an easy to set multi-turn setting wheel and memory lock. Features: Positive shut-off Built-in memory stop Multi-turn 360 hand wheel with vernier scale and digit readout Offset pressure/ temperature ports Presetting and locking with Allen key