... .safe and reliable; 5.long life. I.Description:1.Flange heater is welded or screwed to a flange mounted to form ... the temperature probe, made of the temperature controlled The overall heater. to prevent dry, effectively extending the service life.3.There ... and so on.5.Mainjly for electric water boilers, electric boilers, solar systems, solar water tanks, chemical tanks, bathing pool, heated swimming ...