To limit the flow rate (with constant pressure ratios)
Mode of operation
The opening limiter is screwed onto the central drill hole of the valve cover. The stroke of the valve spindle can be limited with the adjusting screw. Attention: Must not be adjusted when under pressure.
It can also be built on afterwards on the valve.
Pressure level PN 25, all nominal widths
Opening limiter for electric/analogue position indicator (No. 1999806)