The White-Rodgers 1311-102 is a 3-wire valve for zoning Hydronic systems up to 50 PSI. This valve is designed for 0.75" I.D. tubing, and features built-in auxiliary contacts to control burner or circulator relay.
3-wire hydronic zone valve for 0.75 inch tubing (I.D.)
Built-in auxiliary contacts to control burner or circulator relay
Automatic recycling manual operator shows valve position at all times
Maximum system pressure: 50 PSI
Stainless steel valve stem; Quiet operation