{"product_id":"differenzdruck-uberstromventil","title":"Differential pressure relief valve","description":"\u003ch2\u003eDifferential pressure overflow valve — adjustable with scale\u003c\/h2\u003e  \u003ch3\u003eTechnical data\u003c\/h3\u003e  \u003cp\u003eMaximum operating pressure: 10 bar. Average temperature range: 0–100 °C. Maximum glycol content: 30%. Medium: Water and glycol solutions.\u003c\/p\u003e  \u003ch3\u003efunction\u003c\/h3\u003e  \u003cp\u003eThe differential pressure bypass valve ensures controlled return of flow rates in systems with fluctuating consumer states. It limits the differential pressure generated by the pump and returns excess volume proportionally to the number of closed consumers.\u003c\/p\u003e  \u003cp\u003eEspecially in systems with heat pumps or speed-controlled circulation pumps, the valve ensures the required minimum flow rate necessary for the correct operation of the machine and to prevent malfunctions and overheating.\u003c\/p\u003e  \u003ch3\u003eAdjustability and operation\u003c\/h3\u003e  \u003cp\u003eThe stepless adjustment via the visible scale allows for precise adaptation to the calculated pressure conditions of the system. During commissioning, the setting should be made based on the pump characteristic curve and the desired differential pressure limit.\u003c\/p\u003e  \u003cp\u003eFine-tuning during operation allows for optimization of system behavior under changing loads; log settings for later control measurements.\u003c\/p\u003e  \u003ch3\u003eAdvantages\u003c\/h3\u003e  \u003cp\u003eProtection of the pump and control components through limiting the maximum differential pressure, reduced noise levels, and a longer system lifespan. More stable hydraulic conditions improve control behavior and efficiency.\u003c\/p\u003e  \u003ch3\u003eAssembly and maintenance instructions\u003c\/h3\u003e  \u003cp\u003eThe valve should be installed in a suitable position in the return line, accessible for inspection and adjustment. A strainer upstream of the valve increases operational reliability and reduces wear.\u003c\/p\u003e  \u003cp\u003eRegular visual and functional inspections, as well as checks of the glycol content and seals, are recommended. Appropriate protective measures must be taken in case of frost.\u003c\/p\u003e  \u003ch3\u003eApplication areas\u003c\/h3\u003e  \u003cp\u003eSuitable for heating, cooling, and heat pump systems with variable flow rates. Particularly useful in systems with multiple consumers, actuators, or speed-controlled pumps to ensure minimum flow and pressure limitation.\u003c\/p\u003e  \u003ch3\u003eTechnical data\u003c\/h3\u003e  \u003cul\u003e  \u003cli\u003eMaximum working pressure: 10 bar\u003c\/li\u003e  \u003cli\u003eMedium temperature range: 0–100 °C\u003c\/li\u003e  \u003cli\u003eMaximum glycol content: 30%\u003c\/li\u003e  \u003cli\u003eAgents: Water, glycol solutions\u003c\/li\u003e  \u003cli\u003eSetting: 10–60 kPa (1–6 m w.s.  )\u003c\/li\u003e  \u003cli\u003eConnections: \u003cul\u003e  \u003cli\u003e3\/4” female thread (ISO 228-1) for male thread with screw connection\u003c\/li\u003e  \u003c\/ul\u003e  \u003c\/li\u003e  \u003c\/ul\u003e","brand":"Caleffi","offers":[{"title":"Default Title","offer_id":56510708744540,"sku":"CUV34100","price":31.16,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0757\/7796\/6428\/files\/differenzdruck-uberstromventil-8952150.webp?v=1770691945","url":"https:\/\/si.gemashop.de\/products\/differential-pressure-overflow-valve","provider":"GEMA Shop","version":"1.0","type":"link"}