The E121 air vent is a reliable automatic venting device and is suitable for venting of air or gas from heating systems or heat process installations.
Standard version, connection size G 1/2"
||water or water-glycol mixture according to VDI 2035
|Maximum operating pressure
|Max. media temperature
Brass housing and lid, high-grade, heat-resistant synthetic material float, heat-resistant elastomer seal components
- With the Z 121 A shut-off valve fitted, cleaning or replacement of the seal and inner components can be carried out without draining the system