{"product_id":"trident-as079b-exhaust-valve-solenoid-pilot-valve-dryspell","title":"Trident AS079B Exhaust Valve Solenoid Pilot Valve for Dryspell Plus","description":"\u003ch2\u003eTrident AS079B Exhaust Valve Solenoid Pilot Valve\u003c\/h2\u003e\n\u003cp\u003eGenuine \u003cstrong\u003eTrident AS079B\u003c\/strong\u003e solenoid pilot valve for the exhaust valves on \u003cstrong\u003eDryspell Plus\u003c\/strong\u003e modular heatless \u003ca href=\"https:\/\/aircompressorstore.com\/collections\/desiccant-air-dryers\"\u003edesiccant air dryer\u003c\/a\u003es. One part number covers the entire range from size 10 through size 375 SCFM. The pilot valve takes the electrical signal from the dryer controller and delivers the air signal that strokes the main exhaust valve.\u003c\/p\u003e\n\u003cp\u003eBecause it is the link between the controller and the valve, a failed pilot valve looks exactly like a much bigger problem. The dryer stops venting the regenerating tower, the dew point climbs, and the controller shows a normal cycle the whole time. Checking the pilot valve before condemning a controller or a main exhaust valve assembly saves considerable time and money.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrident part number:\u003c\/strong\u003e 8059240398 (AS079B)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Solenoid pilot valve for the main exhaust valve\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e Trident Dryspell Plus sizes 10 through 375 SCFM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e Each dryer uses two, one per tower\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSigns the pilot valve has failed\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTower will not depressurize even though the controller has stepped the cycle\u003c\/li\u003e\n\u003cli\u003eNo audible click at the pilot when the exhaust step should begin\u003c\/li\u003e\n\u003cli\u003eOne tower purges normally and the other does not\u003c\/li\u003e\n\u003cli\u003eCoil reading open circuit or drawing no current\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDiagnose in this order\u003c\/h3\u003e\n\u003cp\u003eConfirm the pilot valve first, then the main exhaust valve, then the controller. Each dryer carries two pilot valves, so if one has aged out the other is usually close behind and worth replacing at the same visit.\u003c\/p\u003e\n\u003cp\u003eIsolate air and electrical supply before removing the valve, and follow the Trident Dryspell service manual for the correct procedure.\u003c\/p\u003e","brand":"Trident","offers":[{"title":"Default Title","offer_id":54534410633491,"sku":"8059240398","price":133.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0825\/3141\/8387\/files\/Warthog_Box_8a774055-376e-417f-9e1e-d0e4d517c02b.jpg?v=1787070610","url":"https:\/\/aircompressorstore.com\/products\/trident-as079b-exhaust-valve-solenoid-pilot-valve-dryspell","provider":"Warthog Air Compressor Store","version":"1.0","type":"link"}