Georg Fischer

Georg Fischer, founded in 1802 and based in Schaffhausen, Switzerland, is known to plant engineers for piping systems and for the Signet line of flow and analytical instruments that fit into them. Seven Star LLC, an independent supplier in Oman, lists the GF Signet 3-2551 Magmeter insertion electromagnetic flow sensor and the GF Signet 8550-1 flow transmitter.

GF Signet instruments listed here

The 3-2551 Magmeter is an insertion flow sensor: it is mounted through a fitting in the pipe wall and has no moving parts, which suits water that carries some solids. The 8550-1 is a flow transmitter that takes the signal from a Signet flow sensor and provides a display and outputs for the control system. Sensor, pipe fitting and transmitter are chosen together, because the fitting sets the insertion depth for a given pipe size and material.

Ordering GF Signet parts: what we need

Copy the manufacturer part number from the label, which normally starts with 3- followed by the model and option digits. Add pipe size, pipe material, the fitting you have, the fluid and its conductivity, sensor body material, output required and cable length. Water treatment, desalination and chemical dosing sites in the GCC often have older Signet transmitters; if a model is no longer produced we ask for the manufacturer’s current replacement.