Video 1
BHN 601 01 block and vent valve
The BHN 601 01 is an intermediate flange valve that can be used to pneumatically isolate the actuator from the control valve and to vent the actuator.
Go to NAMUR block and vent valvesVideo Tutorials
How are NAMUR valves used and what functions and benefits do they provide?
NAMUR accessories made simple. The HAFNER product portfolio offers a unique range of valves and accessories with a NAMUR interface. Our NAMUR accessories enable a wide variety of control tasks to be implemented efficiently.
Below, you will find a video series in which you can learn how NAMUR valves are used and what functions and benefits they provide. Voices were generated with AI.
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Functions and Benefits
NAMUR accessories explained
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Video 2
DRN flow regulator plates
With our DRN flow regulator plates, the speed of single- and double-acting actuators can be controlled very precisely. Thanks to a slotted spindle, the plates can be adjusted with exceptional precision.
Go to NAMUR flow regulator platesVideo 3
HVRZN hand lever valve
The HVRZN 731 702 is a flange-mounted valve that can be used to override a positioner or another control valve. The process valve can be opened, closed, or held in intermediate positions via the hand lever.
Go to HVRZN 731 701 product pageVideo 4
CBN control block
The CBN control block controls process valves with an inflatable valve seat. It is mounted directly onto a double-acting actuator via the NAMUR interface and provides purely pneumatic, time-delayed inflation and deflation of the valve seat.
Go to NAMUR control blocksVideo 5
PN 411 711 SR pressure switch
The PN 411 711 SR is a pneumatic pressure switch that blocks the actuator whenever the system pressure falls below the set value. For this purpose, the valve is equipped with a pneumatic control port in the pilot-head. This provides a fail-in-place or fail-freeze function.
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