{"product_id":"bell-gossett-113020-model-67-automatic-air-vent","title":"Bell \u0026 Gossett 113020 Model 67 Automatic Air Vent","description":"\u003cp\u003eEliminate trapped air from your hydronic heating system to ensure quiet, efficient operation with the reliable \u003cstrong\u003eBell \u0026amp; Gossett 113020\u003c\/strong\u003e Automatic Air Vent, known in the industry as the \u003cstrong\u003eModel 67\u003c\/strong\u003e. This high-quality vent is designed to automatically discharge air from systems, preventing air-bound pipes, corrosion, and diminished thermal output that can hamper your boiler performance.\u003c\/p\u003e\u003cp\u003eThe unit features a precision-engineered internal float mechanism that rises as the air chamber fills. As air accumulates inside the vent, the float drops, opening the valve and allowing the trapped air to escape. Once the air is purged and the system pressure forces water back into the chamber, the float rises to close the valve securely, preventing any liquid leakage.\u003c\/p\u003e\u003ch4\u003eKey System Performance Baselines:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatic Purging:\u003c\/strong\u003e Continuously removes system air to maintain optimal circulation flow rates.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorrosion Prevention:\u003c\/strong\u003e Reduces oxygen content within the hydronic loop to extend the service life of pipes and heat exchangers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem Efficiency:\u003c\/strong\u003e Eliminates noise and cold spots caused by air locks, ensuring uniform heat distribution throughout the property.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e⚠️ \u003cstrong\u003eApplication Profile:\u003c\/strong\u003e Ideal for use in residential baseboard heating systems, radiant floor heating manifolds, and small-to-medium scale hydronic boiler installations where consistent air removal is required for peak energy efficiency.\u003c\/p\u003e","brand":"Bell \u0026 Gossett","offers":[{"title":"Default Title","offer_id":43123956678750,"sku":"113020","price":50.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/113020_image_4fc3273b-974c-447c-8366-91b54fefd781.png?v=1786025959","url":"https:\/\/nationalboilersupply.com\/products\/bell-gossett-113020-model-67-automatic-air-vent","provider":"National Boiler Supply","version":"1.0","type":"link"}