{"product_id":"dema-1-4-eductor-valve","title":"DEMA 1\/4\" Green Eductor Valve","description":"\u003ch3 style=\"text-align: center;\"\u003eReplacement Eductor for DEMA Blend Centers\u003c\/h3\u003e\n\u003cp\u003eThe eductor is the part that actually makes a blend center work. It is a venturi: water accelerates through a narrowed throat, pressure drops as velocity rises, and that drop is what pulls concentrated chemical up out of the jug and into the stream. No pump, no power, no moving parts. The metering tip that threads into it sets the ratio, but the eductor is what creates the draw that makes the tip do anything at all. This 1\/4\" valve is the genuine DEMA replacement for the \u003ca href=\"https:\/\/snsautosupply.com\/products\/dema-blend-centers\" title=\"DEMA Blend Centers\"\u003e1 GPM blend centers\u003c\/a\u003e we stock.\u003c\/p\u003e\n\u003cp\u003eWhat makes eductors worth paying attention to is how they fail. They rarely quit outright. Hard water scale builds in the throat, aggressive chemistry slowly attacks the plastic, and the draw weakens a little at a time. Your ratio drifts, your chemical comes out thinner than the label says, and nobody notices until staff start complaining that a product \"does not work like it used to\" and compensating by running more of it. If you are unsure what your station should be delivering, run the numbers through the \u003ca href=\"https:\/\/snsautosupply.com\/pages\/dilution-calculator\" title=\"FREE Dilution Calculator\"\u003edilution calculator\u003c\/a\u003e\u003ca href=\"https:\/\/snsautosupply.com\/pages\/dilution-calculator\"\u003e\u003c\/a\u003e before you assume the chemical is the problem. See the full \u003ca href=\"https:\/\/snsautosupply.com\/collections\/dema-engineering-company\" title=\"Shop DEMA\"\u003eDEMA range\u003c\/a\u003e for the rest of the system.\u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eWhat Makes it Great:\u003c\/h3\u003e\n\u003cp\u003e🔵 \u003cstrong\u003eGenuine DEMA Part:\u003c\/strong\u003e Built for DEMA dispensing systems, so the threads, throat geometry, and tip seat all match what the unit was engineered around.\u003c\/p\u003e\n\u003cp\u003e💧 \u003cstrong\u003eRestores Correct Draw:\u003c\/strong\u003e A fresh eductor brings suction back to spec, which is the only way a metering tip delivers the ratio it is stamped for.\u003c\/p\u003e\n\u003cp\u003e🔧 \u003cstrong\u003eThreads Straight In:\u003c\/strong\u003e Screws into the pre-threaded port on the unit. No tools beyond what is already on the bench and no plumbing changes.\u003c\/p\u003e\n\u003cp\u003e💵 \u003cstrong\u003eCheaper Than the Chemical It Wastes:\u003c\/strong\u003e A drifting ratio burns concentrate every single day. At this price the part pays for itself long before anyone notices the problem.\u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does an eductor actually do?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt creates suction using nothing but water flow. Inside the body is a narrowed throat, and as water speeds up passing through it the pressure in that section drops below atmospheric. That vacuum is what lifts concentrate from the jug through the pickup tube and into the water stream. It is the same venturi principle a foam cannon or a carburetor uses, with no electricity and no moving parts involved.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I know my eductor needs replacing?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eLook for drift rather than failure. Chemical that seems weaker than it used to, staff reaching for more product to get the same result, inconsistent output between two stations running the same tip, or visible scale when you unthread it. The reliable check is a draw test: put the pickup tube in a measured container, run the unit for a timed interval, and measure how much\u003c\/p\u003e","brand":"DEMA","offers":[{"title":"Default Title","offer_id":50837985886504,"sku":"DEMA-61.99.2","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0691\/3589\/2776\/files\/61992-dema-green-eductor-valve-for-1-gpm-units_d0900ac4-e3b4-4be5-a273-ffdc2787ff88.jpg?v=1789667098","url":"https:\/\/snsautosupply.com\/products\/dema-1-4-eductor-valve","provider":"SNS Auto Supply","version":"1.0","type":"link"}