{"product_id":"135-to-175-psi-air-compressor-pressure-switch-with","title":"135 To 175 PSI Air Compressor Pressure Switch With Pumptrol Unloader Valve And On Off Switch Heavy Duty Grey 100 To 200 PSI Adjustable For Two-Stage Compressors","description":"\u003cdiv\u003eAdjustable 100-200 PSI Pumptrol Switch for Stage Compressors\u003cbr\u003e\n✔️ 135-175 PSI range, single unit, unloader valve, 1\/4\" NPT sensing port \u003cp\u003eThis pressure switch is a heavy-duty control designed for two-stage air compressors, delivering automatic on\/off cycling at preset pressures and an unloader option for easier restarts. It’s a handy fit for shop and industrial air systems that require reliable pressure management.\u003c\/p\u003e \u003cp\u003e✅ Preset On Pressure: 135 PSI, Off Pressure: 175 PSI, Diff: 40 PSI \u003cbr\u003e✅ Built-in unloader valve for load-free startup \u003cbr\u003e✅ 1\/4\" female NPT pressure sensing port (approx 1\/2\" diameter) \u003cbr\u003e✅ Unloader connection port: 1\/4\" compression for copper or high-pressure tubing \u003cbr\u003e✅ Works with single or three-phase power, 110-575 V options \u003cbr\u003e✅ 15 A continuous current rating \u003cbr\u003e\u003c\/p\u003e \u003cp\u003e💡 What is a pressure switch with unloader valve and how does it help an air compressor system? This handy device helps manage pressure in a variety of systems.\n- It turns the compressor on and off at preset pressures to protect the motor\n- The unloader valve helps ease startup by releasing head pressure\n- The 135-175 PSI range is adjustable to fit your tank and tools\n- Works with single or three-phase power across a wide voltage range\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amazon","offers":[{"title":"Default Title","offer_id":48207278276843,"sku":"VXB07643QJWB","price":107.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/3268\/0683\/files\/71xsip8XpkL.jpg?v=1778077450","url":"https:\/\/vxb.com\/products\/135-to-175-psi-air-compressor-pressure-switch-with","provider":"VXB Bearings","version":"1.0","type":"link"}