Products Our motto "Technology for Environmental Protection" has long been an inherent part of our product development philosophy and product range. We strive to improve the environment, to make processes which work with greater environmental compatibility and to avoid putting a strain on the environment. We offer you a multitude of innovative solutions, new products and smart concepts. More Informations Industries & Topics Industries & Topics Overview Fuel oil components Fuel oil components Overview Fast and clean oil filter change Avoiding fungal attacks in biofuel More performance with the sintered plastic sieve AFRISO Smart Home AFRISO Smart Home Overview Gateway HG 02 Products Products Overview AFRISOhome App Alexa Smart home applications Smart home applications Overview Leakage security Security Stand-alone applications Stand-alone applications Overview Getting started with AFRIShome Smart Home Craft 4.0 Craft 4.0 Overview OEM-Manifold systems Hydraulic Balancing Hydraulic Balancing Overview VarioQ Vario-DP Tank conversion Hygienic processes AFRISO Smart Home AFRISO Smart Home offers innovative solutions for intelligent home automation. With modern sensors and actuators, you can easily and conveniently control your home. More Informations Service-Center Service-Center Overview Service Contact persons Data exchange formats Catalogs Service-Center Flexible, cost-aware, on schedule, solution-oriented and fast – the AFRISO team always provides the decisive added value. More Informations Training & Events Training & Events Overview Exhibitions Exhibitions Overview SHK+E 2026, Essen IFH Intherm 2026, Nuremberg GET Nord 2026, Hamburg Search Domestic technology Level sensors, overfill prevention systems and level controllers GWG 23-Ro 400 GWG 23-Ro Images 2 GWG 23-Ro 400 Level sensor for outdoor tanks Variants Documents Benefits for fuel oil EL, diesel fuel, biofuel/biodiesel and petrolstainless steel sleeve for permanent operation even with biofuel/biodieselyellow fitting with Ex approval (EU type examination certificate, zone 0) and stainless steel sleevevariable height adjustmentmaterials resistant to biofuel and biodiesel with max. 100 % FAMEgreen fuels ready: suitable for use at tank facilities filed with the new paraffinic fuels HVO or GTLwatertight up to 10 m water column - ideal for use in flood hazard areas Application Part of a control chain for overfill alarm systems. The level sensor helps to prevent overfilling of tanks. For tanks as per EN 12285-1, 12285-2, DIN 6618, 6619, 6623, 6624, 6608, 4119 and tanks as per DIN 6620 and DIN 6625 or equivalent tanks.Suitable for fuel oil (DIN 51603-1), diesel fuel (EN 590), liquid fuels as per DIN SPEC 51603-6 and DIN/TS 51603-8 as well as biofuel and biodiesel with up to 100 % FAME (EN 14214). Also suitable for use with the new paraffinic fuels HVO and GTL as an admixture or 100% or of petrol under certain conditions. See the operating instructions for additional information. Description PTC thermistor type level sensor consisting of height-adjustable probe and screw fitting. Pressure- and vacuum-tight. Watertight up to 10 m water column.GWG 23-Ro with tube fitting made of yellow plastic, highly impact-resistant, deformation-resistant with strong chain and flange gasket. Also suitable for petrol with GWG level sensor sleeve made of stainless steel.GWG 23-Ro with tube fitting made of grey plastic. Suitable for the following media: fuel oil, diesel fuel, biofuel and biodiesel. With metallised sleeve.When selecting a level sensor, please check to see that the fitting is as close as possible below the access chamber cover – the distance should be no less than 20 mm and no more than 300 mm. See the operating instructions for the adjustment dimension in the tank.In the case of special lengths, extra shipping charges may apply (bulk goods). Variants Technical data Downloads Variants FittingProbe lengthmin. lengthmax. lengthPart no.GWG 23-Ro 400yellow 400 mm46115GWG 23-Ro 700yellow 700 mm46116GWG 23-Ro 1000yellow 1000 mm46117level sensor GWG 23-Ro special lengthyellowmax. 3000 mm46118 in-stock items manufactured goods Technical data Probe length 400 − mmProcess connectionScrew fitting G1Operating temperature rangeMedium: -25/+50 °CAmbient: -25/+60 °COperating pressure in the tankwithout pressureMaterialGWG level sensor fitting: PlasticProbe tube: steel, galvanisedScrew fitting: BrassPTC thermistor: glass-encapsulatedGWG level sensor sleeveGWG level sensor fitting yellow: Stainless steelapprovalCE marking as per EC Construction Products Regulation 305/2011, EU 574/2014, EN 13616:2004GWG with yellow fitting: Ex II 1G Ex ia IIB T3 GaEx II 1/2G Ex ia IIB T3 Ga/Gb Downloads Beständigkeit Ölkomponenten PDF English German Grenzwertgeber GWG 23 Ex PDF Download Grenzwertgeber GWG 12, Grenzwertgeber GWG 23 PDF Download Grenzwertgeber GWG 23 Manuals PDF Download Related products
AFRISO Smart Home AFRISO Smart Home offers innovative solutions for intelligent home automation. With modern sensors and actuators, you can easily and conveniently control your home. More Informations Service-Center Service-Center Overview Service Contact persons Data exchange formats Catalogs Service-Center Flexible, cost-aware, on schedule, solution-oriented and fast – the AFRISO team always provides the decisive added value. More Informations Training & Events Training & Events Overview Exhibitions Exhibitions Overview SHK+E 2026, Essen IFH Intherm 2026, Nuremberg GET Nord 2026, Hamburg Search
Service-Center Flexible, cost-aware, on schedule, solution-oriented and fast – the AFRISO team always provides the decisive added value. More Informations Training & Events Training & Events Overview Exhibitions Exhibitions Overview SHK+E 2026, Essen IFH Intherm 2026, Nuremberg GET Nord 2026, Hamburg Search
GWG 23-Ro Images 2 GWG 23-Ro 400 Level sensor for outdoor tanks Variants Documents Benefits for fuel oil EL, diesel fuel, biofuel/biodiesel and petrolstainless steel sleeve for permanent operation even with biofuel/biodieselyellow fitting with Ex approval (EU type examination certificate, zone 0) and stainless steel sleevevariable height adjustmentmaterials resistant to biofuel and biodiesel with max. 100 % FAMEgreen fuels ready: suitable for use at tank facilities filed with the new paraffinic fuels HVO or GTLwatertight up to 10 m water column - ideal for use in flood hazard areas Application Part of a control chain for overfill alarm systems. The level sensor helps to prevent overfilling of tanks. For tanks as per EN 12285-1, 12285-2, DIN 6618, 6619, 6623, 6624, 6608, 4119 and tanks as per DIN 6620 and DIN 6625 or equivalent tanks.Suitable for fuel oil (DIN 51603-1), diesel fuel (EN 590), liquid fuels as per DIN SPEC 51603-6 and DIN/TS 51603-8 as well as biofuel and biodiesel with up to 100 % FAME (EN 14214). Also suitable for use with the new paraffinic fuels HVO and GTL as an admixture or 100% or of petrol under certain conditions. See the operating instructions for additional information. Description PTC thermistor type level sensor consisting of height-adjustable probe and screw fitting. Pressure- and vacuum-tight. Watertight up to 10 m water column.GWG 23-Ro with tube fitting made of yellow plastic, highly impact-resistant, deformation-resistant with strong chain and flange gasket. Also suitable for petrol with GWG level sensor sleeve made of stainless steel.GWG 23-Ro with tube fitting made of grey plastic. Suitable for the following media: fuel oil, diesel fuel, biofuel and biodiesel. With metallised sleeve.When selecting a level sensor, please check to see that the fitting is as close as possible below the access chamber cover – the distance should be no less than 20 mm and no more than 300 mm. See the operating instructions for the adjustment dimension in the tank.In the case of special lengths, extra shipping charges may apply (bulk goods). Variants Technical data Downloads Variants FittingProbe lengthmin. lengthmax. lengthPart no.GWG 23-Ro 400yellow 400 mm46115GWG 23-Ro 700yellow 700 mm46116GWG 23-Ro 1000yellow 1000 mm46117level sensor GWG 23-Ro special lengthyellowmax. 3000 mm46118 in-stock items manufactured goods Technical data Probe length 400 − mmProcess connectionScrew fitting G1Operating temperature rangeMedium: -25/+50 °CAmbient: -25/+60 °COperating pressure in the tankwithout pressureMaterialGWG level sensor fitting: PlasticProbe tube: steel, galvanisedScrew fitting: BrassPTC thermistor: glass-encapsulatedGWG level sensor sleeveGWG level sensor fitting yellow: Stainless steelapprovalCE marking as per EC Construction Products Regulation 305/2011, EU 574/2014, EN 13616:2004GWG with yellow fitting: Ex II 1G Ex ia IIB T3 GaEx II 1/2G Ex ia IIB T3 Ga/Gb Downloads Beständigkeit Ölkomponenten PDF English German Grenzwertgeber GWG 23 Ex PDF Download Grenzwertgeber GWG 12, Grenzwertgeber GWG 23 PDF Download Grenzwertgeber GWG 23 Manuals PDF Download
