3 Components and function
The flow monitor is fitted on a normal valve body with a female threaded respectively a flange
connection.
Components:
(1) Housing body.
(2) Compression spring.
(3) Guide rod.
(4) Magnets.
(5) Piston.
(6) Valve body.
(7) Flat gasket.
(8) Holder for switching unit.
(9) Reed contact.
(10) O-ring.
(11) Bleed screw + Flat gasket.
Functional principle:
The piston (5) is free to move vertically and is held in
the correct position by the guide rod (3).
The piston is pressed against the valve seat in the
valve body (6) by the compression spring (2).
With incoming flow, the piston (5) is lifted free from the
valve seat. The stronger the flow, the more the pis-
ton (5) and magnets (4) are displaced.
The magnets (4) move relative to the reed contact (9). When the set switching point is
reached, the contacts of the reed switch (9) switch over.
When the flow rate drops, the displacement of the piston (5) and magnets (4) is less. The
reed contact (9) switches back.
