The bleeding and venting valve FOX 3F (EB 1.75)
is a combined start-up and continuous bleeding and venting valve with float control.
During start-up a large quantity of air is removed at low pressure via a large cone. If the ventilator is closed and further small quantities of air occur in continuous operation, a second small cone opens and removes all the air present. The large cone does not open until the level drops and pressure decreases at the same time. In the case of underpressure the valves open immediately.
The FOX 3F (EB 1.75) bleeding and venting valves are float-controlled, compact devices for water. The housings are made of spheroidal graphite iron with a continuous epoxy coating. The valve cone is soft-sealed. The minimum pressure for the valve seal is 0.2 bar for PN 16 and 0.3 for PN 25.
- epoxy coating as per DVGW W270 and KTW recommendation of the German Ministry for Health, thickness min. 250 μm
- Internal parts made of 1.4301
- Float made of polypropylene PP
- Highest flow rates thanks to "Full Bore" body design
- Degassing bend made of polypropylene PP (DN 50 – 150) or stainless steel (DN 200 – 250)
- Body made of spheroidal cast iron GJS 450-10
- Non-slam closing mechanism
- Purging connection in stainless steel
- Without continuous bleeding
- Pressure surge attenuation by anti-shock system
- Outlet with protection cover
venting up to 35100 Nm³/h
continuous bleeding up to 33 Nm³/h
- Daimler
- Stadtwerke
- Evonik
- Vattenfall
- Wacker
- Zweckverbände
- Henkel
