Fuel sensor GW 7-5020


Design – the Fuel Sensor is completed with suction and backflow of fuel.

Material – antimagnetic stainless steel.

The basic construction component is a flange to which tubes are welded. The central tube is smaller and houses a measurement system. A float with a magnet moves along this tube depending on fuel level in the tank. By the magnetic field, the magnetic switches are operated. As a result, the output value of the selected electrical quantity depends on the fuel height in the tank.

The tube of 12mm diameter serves for suction of fuel, the tube of 10mm diameter is used for fuel backflow from the fuel pump. A filter is provided to prevent intrusion of rough impurities into the fuel system. Ends of these tubes above the tank are provided with a reinforcement to secure a reliable connection of hoses.

The Fuel Sensor is intended for mounting to tanks with a 40mm hole.

The use of the fuel gauge must be specified in the order.


Max. voltage 15 V
Max. current 150 / 200 mA
Operating temperature -40°C to +85°C °C
Label producer, product code, direction of fuel flow, date (or date code)
Vibration resistance 3 g
Service life 1 000 000 cycles
Protection degree IP 68 (inner part) IP 67 (external part)

Limit parameters for specifying new types by the customer

Max. length H 900  mm
Measuring circuit resistance 50 – 100 000  ohm
Minimum measurement step 10  mm
Max. measured height L1 15  mm
Min. measured height L0 H-30  mm
Turn around of tubes Different – depending on tank design
Connector Any type of cable connector

Examples of used connectors: