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 Equipment for heating systems, boiler rooms and chimneys 77470 Gefäßanschlusskombination GAK ST 3bar Images 1 Back GAK-ST | 77470 Gefäßanschlusskombination - Stahl in-stock items Documents Benefits time-saving installation with pre-assembled, tightness-tested assemblyservice-friendly: Air vent and expansion vessel can be replaced without draining Application For connection of diaphragm expansion vessels up to 50 l for sealed heating systems as per EN 12828 up to a capacity of 50 kW. Description Pre-assembled combination fitting consisting of:Steel carrier with enclosed anti-tamper cap valve for connection of the diaphragm expansion vesselSafety valve with type approvalPressure gauge for heating installations with red reference pointerQuick air vent (12 bar), mounted via self-sealing mounting valve Technical data Downloads Technical data ConnectionsBoiler: G¾ maleExpansion vessel: G¾ femaleOperating temperature rangeMedium: max. 120 °CDimensions (with insulation)W x H x D: 275 x 270 x 70 mmCarrierMaterial: Steel, galvanisedProtrusion: 258 mmDiaphragm safety valve MSInlet x outlet: G½ x G¾Seal: Teflon ring, rotatableResponse pressure: 3 barHeat capacity: 50 kWPressure gauges for heating installationsBourdon tube pressure gaugesRange: 0/4 barwindow: with red reference pointerDiameter: 63 mmConnection: G¼ bottomquick air vent with aqua stopInput: G⅜Nominal pressure: 12 barScope of deliveryConnection assembly for expansion vessels GAKMontagezubehör: Schrauben, Unterlegscheiben, DübelAnti-tamper cap valve (not mounted) Downloads Gefäßanschlusskombination GAK 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
Images 1 Back GAK-ST | 77470 Gefäßanschlusskombination - Stahl in-stock items Documents Benefits time-saving installation with pre-assembled, tightness-tested assemblyservice-friendly: Air vent and expansion vessel can be replaced without draining Application For connection of diaphragm expansion vessels up to 50 l for sealed heating systems as per EN 12828 up to a capacity of 50 kW. Description Pre-assembled combination fitting consisting of:Steel carrier with enclosed anti-tamper cap valve for connection of the diaphragm expansion vesselSafety valve with type approvalPressure gauge for heating installations with red reference pointerQuick air vent (12 bar), mounted via self-sealing mounting valve Technical data Downloads Technical data ConnectionsBoiler: G¾ maleExpansion vessel: G¾ femaleOperating temperature rangeMedium: max. 120 °CDimensions (with insulation)W x H x D: 275 x 270 x 70 mmCarrierMaterial: Steel, galvanisedProtrusion: 258 mmDiaphragm safety valve MSInlet x outlet: G½ x G¾Seal: Teflon ring, rotatableResponse pressure: 3 barHeat capacity: 50 kWPressure gauges for heating installationsBourdon tube pressure gaugesRange: 0/4 barwindow: with red reference pointerDiameter: 63 mmConnection: G¼ bottomquick air vent with aqua stopInput: G⅜Nominal pressure: 12 barScope of deliveryConnection assembly for expansion vessels GAKMontagezubehör: Schrauben, Unterlegscheiben, DübelAnti-tamper cap valve (not mounted) Downloads Gefäßanschlusskombination GAK Manuals PDF Download
