{"product_id":"campbell-hl031000av-pressure-switch-unloader-valve","title":"CAMPBELL HL031000AV Pressure Switch Unloader Valve","description":"\u003cdiv\u003e\u003cp\u003eThe HL031000AV is a Campbell Hausfeld four‑port pressure switch with a 90‑degree unloader valve, designed for use as an OEM replacement on standard air compressors. It switches at 95 psi (cuts in) and 125 psi (cuts out), with a 1\/4\" compression unloader fitting for the check‑valve line at a 90° angle and an integrated unloader tube for rapid pressure relief when the motor stops. This unit is rated for 120 V AC at up to 20 A or 240 V AC at up to 12 A, and features an on\/off lever for manual control. Suitable for Campbell Hausfeld 4‑port configurations, it’s commonly used as a direct replacement in DIY and light commercial compressors requiring a universal HL031000AV pressure switch.\u003c\/p\u003e\u003c\/div\u003e","brand":"CAMPBELL","offers":[{"title":"New","offer_id":51677636526382,"sku":null,"price":30.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_81ca5052-9eac-4c21-9cdc-a7fb9a55b7ce.jpg?v=1769565750","url":"https:\/\/plgautomation.com\/products\/campbell-hl031000av-pressure-switch-unloader-valve","provider":"PLG Automation ","version":"1.0","type":"link"}