E121 Automatic air vent
 |
| The E121 air vent is a reliable automatic venting device and is suitable for venting air or gas from heating systems or heat process installations. |
| For hot water heating systems, radiators, wall- and ceiling-mounted air heaters, air collection vessels, pipework circuits, boilers and air separators. Not suitable for mineral oil or liquids with mineral-oil based additives. |
|
| Materials |
Brass housing and lid, high-grade plastic float, heat-resistant elastomer seal components |
| Medium type |
water or water-glycol mixture according to VDI 2035 |
| Max. media temperature |
110 oC |
| Static pressure |
PN10 |
| Port connection type |
external threads |
| Additional description |
With fitted Z 121 A shut-off valve cleaning or replacement of the seal and inner components can be carried out without draining the system. |
| Description | Additional Product Type |
|---|
| Shut-off valve, packing unit 12 pcs, for connection size R3/8" | Z121-3/8A  | | Shut-off valve, packing unit 12 pcs, for connection size R1/2" | Z121-1/2A | | Air vent cap with float, packing unit 54 pcs, threaded connection 44x19, min. installation depth for float 46mm | X121-AA |
|
