Piston flow switch VD series

for liquidsstainless steelATEX

Highly reproducible Precise, stepless adjustment of the switching value Insensitive to dirt Short installation length ● Highly reproducible ● Precise, stepless adjustment of the switching value ● Insensitive to dirt ● Short installation length Characteristics The volume flow raises a piston (fitted with a magnet) out from a valve seat against a spring force. The piston actuates a hermetically separated reed switch. Handling and operation Note ● Include straight calming section of 5 x DN in inlet and outlet. ● Include a filter if the media are dirty (use magnetic filter for ferritic components). ● It must be ensured that the values given for voltage, current, and power are not exceeded. ● When switched on, a load must be connected in series. ● The electrical details apply to ohmic loads. Capacitive, inductive and lamp loads must be operated using a protective circuit. Adjustment To adjust the switching point, the fixing screw for the switching head must be loosened. The switching head can then be rotated. Turning to the right increases the switching point, and vice-versa. Then retighten the fixing screw. Options ● Special plugs, Tuchel / Harting ● Signal lamp red or red / green in the plug DIN 43650-A ● Other signal lamp ● Rhodium contact 250 V AC, 0.5 A, 30 VA ● Solid metal – Ms / VA ● Switching range Ordering information ● Specify direction of flow, medium, and switching range. ● For oils. State viscosity, temperature and designation (e.g. ISO VG 68) (enquire about switching range). ● For gases, state pressure (relative or absolute), temperature and medium (e.g. air) (request switching range).