■ In the transmission lines and networks, after installation or during the discharge and refilling for maintenance, the existing air It is used to evacuate and suck air into the line inlet when draining the line for breakdown or maintenance.

■ Blue epoxy coated ductile iron body and cover, Ductile Iron Body, flanged connection, Easily replaceable polyethylene float part, Working pressure range: 0.2 – 16 bar.