{"product_id":"stc25","title":"STC25","description":"\u003cp style=\"text-align: justify;\"\u003eElectrothermal actuator for zone valves and terminal units, connectable to Siemens 2-way VGZ series, 3-way XGZ series, and 3-way 4-port XGZ+TXZ series valves. It consists of an expanding thermostatic element (PTC) which, upon receiving a 230 Vac command, causes a small piston to extend, pushing down the valve stem, overcoming the valve body's return spring. The actuator is designed with double thermal insulation, a plastic cover, and a manual control knob for operation without power.\u003cbr\u003eThe STC25 product comes standard with an auxiliary microswitch, whose function is usually to stop the circuit pump when the valve is closed.\u003c\/p\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":53962421436754,"sku":"STC25","price":55.0,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1088\/1708\/8850\/files\/stc25.jpg?v=1783590656","url":"https:\/\/intellisys-it.myshopify.com\/en\/products\/stc25","provider":"intellisys.it","version":"1.0","type":"link"}