{"product_id":"castair-1-4npt-f-vent-outlet-direct-w-felt-20-max-cfm-gas-engine-2-way-pilot-valve","title":"Castair 1\/4\"NPT-F Vent Outlet Direct w\/felt 20 Max. CFM, Gas Engine 2 Way Pilot Valve","description":"\u003cp\u003eThe Cast Air BG2-M is a 2-way pilot valve designed for gas engine-driven air compressors. It shares the same 1\/4\" NPT-F inlet, 20 CFM flow capacity, and direct vent with felt filter as the electric-application BE2-M, but is configured and rated for gas engine compressor control circuits. If you are running a portable gas-engine compressor — the kind that lives on a trailer or job site rather than a compressor room — and need to replace or upgrade the pilot valve that controls loading and unloading, this is the correct part.\u003c\/p\u003e\n\n\u003cp\u003eAt $78.54, it is the most affordable valve in the Cast Air pilot valve lineup. The lower price versus the BE2-M reflects the application differences, not a difference in build quality — both use the same hex brass body and corrosion-resistant construction.\u003c\/p\u003e\n\n\u003ch3\u003eWhat the BG2-M Does\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Gas engine-driven air compressors — manages the pilot signal that tells the compressor to load or unload based on system pressure\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eValve Type:\u003c\/strong\u003e 2-way pilot valve — straightforward two-port design, one function per signal pulse\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInlet:\u003c\/strong\u003e 1\/4\" NPT-F — matches standard pilot circuit ports on most gas engine compressor manifolds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVent:\u003c\/strong\u003e Direct vent with integral felt filter — exhausts signal pressure through a filter element rather than a piped exhaust line; keeps dirt out, keeps the vent clean\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlow Capacity:\u003c\/strong\u003e 20 max CFM — right-sized for 1\/4\" pilot circuits; does not overpower small control lines\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePilot Ports:\u003c\/strong\u003e 1\/8\" female NPT — standard connection for pilot signal lines\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eConstruction and Adjustment\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e Hex brass — durable, corrosion-resistant, easy to thread without cross-threading or galling; hex flats make installation and removal straightforward with a standard wrench\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePressure Adjustment:\u003c\/strong\u003e Full external adjustment — set the actuation pressure without opening the valve or pulling it from the compressor\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDifferential Adjustment:\u003c\/strong\u003e Full external differential adjustment — controls the spread between cut-in and cut-out; important for gas engine applications where short-cycling can cause engine damage over time\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePressure Range:\u003c\/strong\u003e 40–250 PSI available; most portable gas engine compressor applications use the 100–120 PSI range, though 140–170 PSI is available for higher-pressure systems — specify at order\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorrosion Resistance:\u003c\/strong\u003e Corrosion-resistant construction — holds up on job sites, in trailers, and in environments where humidity and temperature swings are part of daily operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhere This Valve Fits\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eDirect replacement for failed or leaking pilot valves on gas engine compressors\u003c\/li\u003e\n  \u003cli\u003eNew builds where a reliable, adjustable pilot valve is needed for a 1\/4\" NPT gas engine control circuit\u003c\/li\u003e\n  \u003cli\u003eService situations where the original valve is hunting between cut-in and cut-out, or failing to hold signal pressure — adjust the differential after installation to dial it in\u003c\/li\u003e\n  \u003cli\u003eNot for electric compressor applications — use the BE2-M for electric dual applications\u003c\/li\u003e\n  \u003cli\u003eNot for high-flow 1\/2\" circuits — the BLG handles 60 CFM gas engine applications at 1\/2\" NPT\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eBG2-M vs. the Cast Air Pilot Valve Lineup\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBG2-M (this valve) — $78.54:\u003c\/strong\u003e 1\/4\" NPT-F, 20 CFM, gas engine, direct vent with felt filter — most affordable in the lineup\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBE2-M — $91.63:\u003c\/strong\u003e Same 1\/4\" NPT-F, 20 CFM, direct vent — electric dual application version\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBLG — $147.84:\u003c\/strong\u003e Steps up to 1\/2\" NPT-F inlet and outlet, 60 CFM — for larger gas engine compressor circuits\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBLE — $123.20:\u003c\/strong\u003e 1\/2\" NPT-F, 60 CFM, electric dual version of the BLG\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eIf your gas engine compressor has a 1\/4\" NPT pilot circuit and draws 20 CFM or less through the control line, the BG2-M fits. If you are not sure about flow requirements, check the port size at the compressor — 1\/4\" NPT ports confirm this is the right valve. Need the gas engine version at higher flow? Step up to the BLG.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSKU \/ Part Number:\u003c\/strong\u003e BG2-M\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Cast Air (Castair)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eValve Type:\u003c\/strong\u003e 2-Way Pilot Valve\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Gas Engine\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInlet Port:\u003c\/strong\u003e 1\/4\" NPT-F\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutlet \/ Vent:\u003c\/strong\u003e Direct vent with felt filter\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePilot Ports:\u003c\/strong\u003e 1\/8\" NPT-F\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Flow:\u003c\/strong\u003e 20 CFM\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePressure Range:\u003c\/strong\u003e 40–250 PSI (specify range at order)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCommon Range Orders:\u003c\/strong\u003e 100–120 PSI or 140–170 PSI\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Material:\u003c\/strong\u003e Hex brass\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAdjustment:\u003c\/strong\u003e External pressure and differential adjustment\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrice:\u003c\/strong\u003e $78.54\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy Buy From Air Compressor Factory Direct?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpecialist since 2016\u003c\/strong\u003e — compressor components are our focus, not a side category; we stock what gas engine compressor operators actually need\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFree shipping\u003c\/strong\u003e on orders to the contiguous US\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFree tech support at 866-217-0063\u003c\/strong\u003e — call us if you are not certain the BG2-M fits your compressor before you order\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFull manufacturer warranty\u003c\/strong\u003e — Cast Air backs their parts; we handle warranty issues directly\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHonest product matching\u003c\/strong\u003e — we will tell you if a different valve in the lineup is a better fit for your specific setup\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eCall 866-217-0063 for quick answers and help!\u003c\/strong\u003e\u003c\/p\u003e\n","brand":"Cast Air","offers":[{"title":"Default Title","offer_id":53342517788885,"sku":"BG2-M","price":144.84,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/8466\/0949\/files\/AirCompressorPilotValve_0eee75fb-ca41-4f6d-a458-671aa7042c2a.jpg?v=1772652575","url":"https:\/\/aircompressorfactorydirect.com\/products\/castair-1-4npt-f-vent-outlet-direct-w-felt-20-max-cfm-gas-engine-2-way-pilot-valve","provider":"Air Compressor Factory Direct","version":"1.0","type":"link"}