{"product_id":"presostato-monofasico-4-vias-2-hp","title":"4-way single-phase pressure switch for compressors up to 2 HP","description":"\u003cp\u003eThe pressure switch is the brain of the compressor: it \u003cb\u003estarts and stops the motor\u003c\/b\u003e according to the tank pressure. If yours doesn't cut out, won't start or leaks air through the valve, this \u003cb\u003e4-way single-phase pressure switch\u003c\/b\u003e restores \u003cb\u003eautomatic, safe\u003c\/b\u003e operation to your compressor.\u003c\/p\u003e\n\u003cp\u003eIt is a spare part for \u003cb\u003esingle-phase compressors up to 2 HP\u003c\/b\u003e and \u003cb\u003e8 bar\u003c\/b\u003e, with a \u003cb\u003e4-way\u003c\/b\u003e outlet and an \u003cb\u003eunloader valve\u003c\/b\u003e that releases the pump so the motor starts without strain. There are \u003cb\u003etwo models\u003c\/b\u003e: compare yours with the photos to choose the one that matches.\u003c\/p\u003e\n\u003cp\u003eA pressure switch in good condition protects the motor and tank: it cuts out at the correct pressure, prevents forced starts and extends the life of the whole unit.\u003c\/p\u003e\n\u003ch2\u003e✅ Key benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eAutomatic start and stop:\u003c\/b\u003e controls the motor according to pressure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e4-way:\u003c\/b\u003e several air connections in a single body.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eUnloader valve:\u003c\/b\u003e the motor starts unloaded and without strain.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eUp to 2 HP and 8 bar:\u003c\/b\u003e for single-phase workshop and DIY compressors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTwo models:\u003c\/b\u003e choose the one that matches yours.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e🏗️ What it's for\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eReplacing a faulty pressure switch.\u003c\/li\u003e\n\u003cli\u003eCompressors that won't start or won't cut out.\u003c\/li\u003e\n\u003cli\u003eFixing leaks from the unloader valve.\u003c\/li\u003e\n\u003cli\u003eMaintenance of single-phase compressors up to 2 HP.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e📋 Technical specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eVoltage:\u003c\/b\u003e single-phase\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePower:\u003c\/b\u003e up to 2 HP\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMaximum pressure:\u003c\/b\u003e 8 bar\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWays:\u003c\/b\u003e 4, with unloader valve\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eModels:\u003c\/b\u003e 871\/1 and 871\/2\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cblockquote\u003e\u003cp\u003e\u003cb\u003e💡 Vetonek tip:\u003c\/b\u003e disconnect the compressor and drain the tank before replacing it; use PTFE tape on the thread and tighten without straining the pressure switch body. The electrical connection must be made by a qualified person.\u003c\/p\u003e\u003c\/blockquote\u003e\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003ch3\u003eWhich of the two models do I need?\u003c\/h3\u003e\n\u003cp\u003eCompare the shape, position of the ports and thread with your current pressure switch; if in doubt, send us a photo.\u003c\/p\u003e\n\u003ch3\u003eIs it suitable for 3 HP compressors?\u003c\/h3\u003e\n\u003cp\u003eNo, it is designed for single-phase motors up to 2 HP.\u003c\/p\u003e\n\u003ch3\u003eWhat is the maximum pressure?\u003c\/h3\u003e\n\u003cp\u003eUp to 8 bar.\u003c\/p\u003e\n\u003ch3\u003eWhat is the unloader valve for?\u003c\/h3\u003e\n\u003cp\u003eIt releases the air from the pump when it stops so the motor can start again without strain.\u003c\/p\u003e\n\u003ch3\u003eIs it suitable for three-phase compressors?\u003c\/h3\u003e\n\u003cp\u003eNo, it is single-phase; for three-phase units there are 10 bar three-phase pressure switches.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Which of the two models do I need?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compare the shape, position of the ports and thread with your current pressure switch; if in doubt, send us a photo.\"}},{\"@type\":\"Question\",\"name\":\"Is it suitable for 3 HP compressors?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No, it is designed for single-phase motors up to 2 HP.\"}},{\"@type\":\"Question\",\"name\":\"What is the maximum pressure?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Up to 8 bar.\"}},{\"@type\":\"Question\",\"name\":\"What is the unloader valve for?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"It releases the air from the pump when it stops so the motor can start again without strain.\"}},{\"@type\":\"Question\",\"name\":\"Is it suitable for three-phase compressors?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No, it is single-phase; for three-phase units there are 10 bar three-phase pressure switches.\"}}]}\u003c\/script\u003e","brand":"Vica Work","offers":[{"title":"Model 871\/1","offer_id":54641454645595,"sku":"CEVIK-CA-871\/1","price":19.6,"currency_code":"EUR","in_stock":true},{"title":"Model 871\/2","offer_id":54641454678363,"sku":"CEVIK-CA-871\/2","price":14.7,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0276\/9698\/8257\/files\/presostato-monofasico-4-vias-2-hp-vica-work-1.jpg?v=1793866027","url":"https:\/\/vetonek.com\/en\/products\/presostato-monofasico-4-vias-2-hp","provider":"Vetonek","version":"1.0","type":"link"}