{"product_id":"castair-1-10-hp-automatic-tank-drain-advs-air-operated-valve-only-advs","title":"Castair 1-10 HP Automatic Tank Drain (ADVS) Air Operated (Valve Only) ADVS","description":"\u003cp\u003eThe \u003cstrong\u003eCast Air ADVS\u003c\/strong\u003e is an air-operated automatic tank drain valve for shop compressors in the 1–10 HP range. At $119.43, this is the valve-only version — the right choice if you already have the strainer and shut-off hardware in place, or if you are replacing just the valve on an existing drain assembly. If you are starting from scratch with no drain hardware at all, look at the ADVSM kit at $154.00, which includes everything.\u003c\/p\u003e\n\n\u003cp\u003eThe problem this valve solves is straightforward: air compressors generate condensate every time they run. Hot compressed air enters the tank, cools, and water vapor drops out of suspension. In a working shop, a 60 to 80 gallon tank accumulates water steadily — every day, every run cycle. That water corrodes the tank steel from the inside out. It gets picked up by the air stream and carried downstream into your tools, spray guns, and air lines. It ruins paint work, accelerates rust in fittings and hoses, and degrades the performance of every air-powered tool in the shop. The ADVS handles draining automatically, every cycle, without anyone on the shop floor thinking about it.\u003c\/p\u003e\n\n\u003ch2\u003eHow the Air-Operated Mechanism Works\u003c\/h2\u003e\n\u003cp\u003eThe ADVS is a pneumatically actuated valve — it uses the compressor's own air pressure differential to open and close. When the compressor unloads at the end of a run cycle, the pressure drop across the valve actuates a drain purge. Condensate that has settled to the bottom of the tank gets expelled at exactly the right moment: after it has had time to settle, before the compressor reloads and stirs it back into the air stream.\u003c\/p\u003e\n\n\u003cp\u003eThere is no electrical connection. No solenoid coil to burn out. No 120V circuit to wire to the compressor. No timer to program or battery to replace. The valve does its job in response to the compressor's actual cycle — meaning it drains as often as the compressor runs, not on a fixed schedule that may miss busy periods or waste energy during slow ones.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAir-Operated Actuation:\u003c\/strong\u003e Powered by the compressor's own pressure differential — no electricity, no wiring, no timer\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCycle-Based Draining:\u003c\/strong\u003e Opens at each compressor unload event, the optimal timing for condensate removal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eValve-Only Configuration:\u003c\/strong\u003e Order this if you have existing strainer and shut-off hardware; order ADVSM if you need the complete kit\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e1–10 HP Rated:\u003c\/strong\u003e Sized for single-phase and small three-phase shop compressors in the most common HP range\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNo Solenoids or Electronics:\u003c\/strong\u003e Purely pneumatic mechanism with no consumable electronic components\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDirect Tank Mount:\u003c\/strong\u003e Installs at the drain port on the bottom of the receiver tank where condensate collects\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCast Air Build Quality:\u003c\/strong\u003e Minnesota-manufactured to the same standard as the Castair compressor line\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eBenefits for Your Shop\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTank Longevity:\u003c\/strong\u003e Eliminating standing water stops internal corrosion — the primary cause of tank failure and failed pressure inspections\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrier Air at Every Drop:\u003c\/strong\u003e Less moisture reaches downstream tools, airlines, and spray equipment\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eZero Daily Maintenance:\u003c\/strong\u003e No petcock to open, no schedule to keep, no one to forget\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNo Electrical Work Required:\u003c\/strong\u003e Install anywhere on the tank without routing power to the compressor location\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFast Payback:\u003c\/strong\u003e One averted tank failure or moisture-contaminated paint job pays for this valve many times over\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e1x Cast Air ADVS air-operated drain valve\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eNote: This is the valve only. Installation hardware (strainer, shut-off valve, fittings) is not included. See the ADVSM at $154.00 for the complete installation kit.\u003c\/p\u003e\n\n\u003ch2\u003eAvailable Configurations\u003c\/h2\u003e\n\u003cp\u003eCast Air offers multiple drain solutions for their compressor line. Here is where the ADVS fits in the lineup:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eADVS — $119.43 (this valve):\u003c\/strong\u003e Air-operated drain valve, no install hardware. For replacements or installs where you already have the strainer and shut-off in place.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eADVSM — $154.00:\u003c\/strong\u003e Same ADVS valve plus strainer, shut-off valve, and all mounting hardware. The complete first-install kit. Add $34.57 over the ADVS and get everything in one order.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSDV03S — Electronic Drain w\/Strainer, 115V:\u003c\/strong\u003e Timer-controlled solenoid drain valve. Requires 120V. Better for large or continuous-duty compressors where fixed-interval draining is preferred.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSDV03M — Electronic Drain w\/Install Kit, 115V:\u003c\/strong\u003e Electronic solenoid with complete install kit. Full-featured electrical drain for programmable interval control.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePC14 — Petcock 1\/4\":\u003c\/strong\u003e Manual drain. Lowest cost. Requires someone to open it regularly. In practice, most shops should use something automatic.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhen Does a Shop Need the ADVS vs. Other Drain Options\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eChoose the ADVS when:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eYou are replacing an existing air-operated drain valve and your strainer and shut-off are already in place\u003c\/li\u003e\n  \u003cli\u003eYou want automatic draining without any electrical work at the compressor\u003c\/li\u003e\n  \u003cli\u003eYour compressor is 1–10 HP and cycles on and off regularly throughout the day\u003c\/li\u003e\n  \u003cli\u003eYou prefer cycle-based draining over a fixed timer interval\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eChoose the ADVSM instead when:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eThis is a first installation — the ADVSM includes strainer and shut-off hardware that you will need\u003c\/li\u003e\n  \u003cli\u003eYou want everything in one part number and one order; the $34.57 difference is worth not sourcing hardware separately\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eStep up to an electronic drain (SDV03S or SDV03M) when:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eYour compressor is larger than 10 HP or runs near-continuously — a pneumatic cycle-based drain may not keep up with the condensate volume\u003c\/li\u003e\n  \u003cli\u003eYou want programmable drain intervals independent of the compressor's unload cycle\u003c\/li\u003e\n  \u003cli\u003e120V is readily available at the compressor location and you prefer the electronic approach\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eThe manual petcock (PC14) works when:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eBudget is the only factor and there is genuine shop discipline to drain every single day\u003c\/li\u003e\n  \u003cli\u003eIn most real shops, manual draining gets skipped — that is exactly the problem automatic drains solve\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e ADVS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Cast Air (Castair), Minnesota\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompressor Range:\u003c\/strong\u003e 1–10 HP\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperation Type:\u003c\/strong\u003e Air-operated (pneumatic actuation, no electricity required)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrain Timing:\u003c\/strong\u003e Cycle-based — actuates at compressor unload\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConfiguration:\u003c\/strong\u003e Valve only — no install hardware included\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eKit Version:\u003c\/strong\u003e See ADVSM at $154.00 for valve + strainer + shut-off + hardware\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrice:\u003c\/strong\u003e $119.43\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e USA (Minnesota)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy Buy From Air Compressor Factory Direct?\u003c\/h2\u003e\n\u003cp\u003eAir Compressor Factory Direct has specialized in Cast Air compressors and accessories since 2016. We stock the full Castair drain and filter accessory line so shops can get the right part from a supplier who understands the equipment. If you are not sure whether to order the ADVS or the ADVSM, call us — we will check what installation hardware you already have and give you a straight answer.\u003c\/p\u003e\n\u003cp\u003eEvery order ships free. Full manufacturer warranty on every Cast Air product. No restocking fees. If the part does not fit, we make it right. Our tech support line is staffed by people who know compressed air systems, not a general call center.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCall 866-217-0063 for quick answers and help!\u003c\/strong\u003e\u003c\/p\u003e","brand":"Cast Air","offers":[{"title":"Default Title","offer_id":53342513332437,"sku":"ADVS","price":220.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/8466\/0949\/files\/DRAINS-3_ba19e83c-cee8-4ded-aa34-47049aac0a3c.jpg?v=1772652562","url":"https:\/\/aircompressorfactorydirect.com\/products\/castair-1-10-hp-automatic-tank-drain-advs-air-operated-valve-only-advs","provider":"Air Compressor Factory Direct","version":"1.0","type":"link"}