Drager ITT Gas Vent Valves come in different models.
S262 Vent Valve – Normally-open, two way
The Drager ITT S262 Vent Valves are pilot operated, diaphragm-type solenoid valves suitable for most venting applications, including industrial and domestic furnaces, boilers, conversion burners and similar combustion uses, or clean air control.
K10 Vent Valve – Normally-open, Lever Actuated
The Drager ITT K10 solenoid vent valves provide on-off control of gases. The valve is commonly used to control gas burner, boiler and furnace vent valves. The K10 is typically mounted in the main gas line to the burner between two safety valves.