{"product_id":"valvula-de-hidraulica-de-seguridad-en-el-desague","title":"Safety hydraulic valve on the drain","description":"\u003cp\u003eThe 1 ½'' hydraulic safety drain valve is especially suitable for installation at the drain outlet of an automatic selector valve for a swimming pool sand filter.\u003c\/p\u003e\n\u003cp\u003eIts use prevents water loss when the valve changes its working position and in the event of a power failure that leaves the valve in a position where the pool could drain.\u003c\/p\u003e\n\u003ch4\u003eTechnical characteristics:\u003c\/h4\u003e\n\u003cp\u003e- Two connection options: double Ø50 smooth sleeve and double 1 ½\" threaded sleeve.\u003c\/p\u003e\n\u003cp\u003e- Working pressure range: 0.2 to 3 kg\/cm2.\u003c\/p\u003e\n\u003cp\u003e- Flow rate range: between 0.5 m3\/h and 14 m3\/h.\u003c\/p\u003e\n\u003ch4\u003eSolenoid electrical characteristics:\u003c\/h4\u003e\n\u003cp\u003e- Voltage: 24 VAC.\u003c\/p\u003e\n\u003cp\u003e- Consumption: 0.125 A.\u003c\/p\u003e\n\u003ch4\u003eOperating principle:\u003c\/h4\u003e\n\u003cp\u003eThis is a hydraulically operated valve in which an elastic membrane seals the water passage. The larger section in the upper chamber compared to the fluid passage section causes the valve to remain closed when there is upstream fluid pressure, as the 3-way solenoid connects the pressure from the pump to the upper chamber of the valve. By opening the drain of the upper chamber, either automatically with a signal from the selector valve or via the solenoid's manual selector, fluid is prevented from entering the chamber, and therefore the fluid in the line overcomes the membrane, causing the valve to open.\u003c\/p\u003e\n\u003ch4\u003eDocumentation:\u003c\/h4\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/asset.productmarketingcloud.com\/api\/assetstorage\/3096_183d80c0-4e30-42d8-93ac-330f4a1c3955\/original\/MAN10_41898_valv_hidr_seg_AP_v1-3_03-2011-.pdf\" target=\"_blank\" title=\"Manual de instalación válvula de seguridad Astralpool 41898\" rel=\"noopener noreferrer\"\u003eInstallation manual\u003c\/a\u003e\u003c\/p\u003e\n\u003ch4\u003eDo you need a spare part?\u003c\/h4\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/q-tech.es\/pages\/contacto\" target=\"_blank\" title=\"Q-Tech qué repuesto necesita\" rel=\"noopener noreferrer\"\u003eClick here and tell us which spare part you need.\u003c\/a\u003e\u003c\/p\u003e","brand":"AstralPool","offers":[{"title":"With Ø50 double-socket connection ready","offer_id":12317522853976,"sku":"AS41898","price":155.76,"currency_code":"EUR","in_stock":true},{"title":"With 1 1\/2\" BSP double sleeve connection","offer_id":12317522886744,"sku":"AS41899","price":160.48,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0015\/4592\/8792\/files\/astralpool-valvula-de-hidraulica-de-seguridad-en-el-desague-con-conexion-doble-manguito-listo-de-o50-52965348639064.jpg?v=1702914805","url":"https:\/\/q-tech.es\/en-en\/products\/valvula-de-hidraulica-de-seguridad-en-el-desague","provider":"Q-Tech ® ","version":"1.0","type":"link"}