Function
As soon as the product pressure operating on the ring face of the valve disc is higher than the closing force set through the air supply pressure of the piston, the VARIVENT® constant pressure valve opens. If the product pressure decreases, the valve automatically closes and creates a constant pressure in the inlet nozzle.
Additionally the lower part of the valve disc is provided with a control cone to optimize the valve characteristics.
The valve disc of the constant pressure valve is made of PTFE, which has a good resistance against aggressive media and only has a low friction during the movement.
Special Features
- Mechanically stops of the valve disc
- PTFE valve disk with low friction
- Easy maintenance, only two gaskets
- Good control characteristics
- Different Kvs-values depending on the flow rate
- Hygienic design
- 3A certified