Angle seat valve NC (normally closed) - Flow over the valve seat:
The control medium opens the valve. The spring closes it. The flow of the process medium takes place above the valve seat.
Angle seat valve NO (normally open) - Flow under the valve seat:
The control medium closes the valve. The spring opens the valve. The flow of the process medium takes place under the valve seat.
Angle seat valve Double acting - Flow above or below the valve seat:
The control medium opens and closes the valve. There is no spring. Two 3/2 way
Pilot solenoid valves
are needed. The flow of the process medium thus takes place either above or below the valve seat.
Angle seat valve Bidirectional - flow above or below the valve seat:
the control medium opens the valve. The spring closes it. There are two springs available. The flow of the process medium thus takes place either above or below the valve seat.
The inclined seat control valve manufactured by M & M is actuated by a compact pneumatic built-in positioning function, which operates in a closed circuit. The switch point signal (transmitted from the control board) is compared with the control feedback signal of the positioning function. If these 2 values do not match, the positioning function activates 2 microvalves (which open or close the valve) until the values match. The proportionality between valve lift and torque flow is ensured by the special design (linear or equal percentage). When the valve is completely closed, the hydraulic seal is additionally secured by another seal, as is standard in standard M & M angle seat valves.
Conversion kit position indicator
Conversion kit suitable for all M & M angle seat valves. Thus, a position indicator (magnetic or inductive) can be installed on the top of the control head. It transmits an electrical signal showing the open position of the valve. The function should not be confused with the positioning function, which shows the exact open or closed position of the valve. The sensor is not included in the conversion kit. The conversion kit is suitable for magnetic or inductive sensors with threaded bodies with a maximum outer diameter of 12mm. For mounting larger diameter sensors (up to a maximum of 18mm), the upper hole of the retaining bracket can be enlarged with a hole. The valve position is visible through the transparent sight glass. For more detailed information, contact the fluid24.eu team.
The manual override can open or close the valve in the event of an emergency (such as electrical failure or damage to the control valve). The manual override is only available for angle seat valves with control heads Ø 63 and 90.
Manual flow adjustment
With the manual flow setting, the flow can be adjusted from 0% to 100%. In NO versions (normally open), it can also be used as manual override. The flow setting is only available for angle seat valves with control heads Ø 63 and 90.