{"product_id":"patterson-kelley-26-0000-0296","title":"Patterson-Kelley 26-0000-0296 Pressure Switch","description":"\u003cp\u003eThe \u003cstrong\u003ePatterson-Kelley 26-0000-0296 Pressure Switch\u003c\/strong\u003e is a precise safety component engineered for high-efficiency \u003cstrong\u003ecommercial boiler gas trains\u003c\/strong\u003e. As a dedicated \u003cstrong\u003elow gas pressure switch\u003c\/strong\u003e, this device monitors supply pressure to ensure the burner operates within safe stoichiometric parameters. Designed for integration with the \u003cstrong\u003ePatterson-Kelley ENVI and NURO control systems\u003c\/strong\u003e, it provides a critical interlocking function that triggers a safety lockout if fuel pressure drops below the calibrated setpoint. This preventatively manages unstable combustion conditions and potential equipment damage in \u003cstrong\u003eindustrial heating applications\u003c\/strong\u003e. Utilizing a \u003cstrong\u003enormally closed (NC) contact configuration\u003c\/strong\u003e and durable brass construction, the \u003cstrong\u003e26-0000-0296\u003c\/strong\u003e is built for the rigorous environments of mechanical rooms. For technicians performing \u003cstrong\u003eannual boiler inspections\u003c\/strong\u003e or troubleshooting \u003cstrong\u003egas pressure safety circuits\u003c\/strong\u003e, this switch provides the reliability needed for \u003cstrong\u003eASME CSD-1 compliance\u003c\/strong\u003e. Proper installation ensures the integrity of the \u003cstrong\u003efuel supply system\u003c\/strong\u003e and maintains the operational efficiency of \u003cstrong\u003egas-fired condensing boilers\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cstrong\u003eKey Benefits\u003c\/strong\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCritical Burner Protection:\u003c\/strong\u003e Prevents lean fires and flame instability by monitoring for pressure drops in the gas line.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eControl System Integration:\u003c\/strong\u003e Fully compatible with \u003cstrong\u003ePatterson-Kelley boiler controls\u003c\/strong\u003e for seamless safety circuit communication.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAdjustable Calibration:\u003c\/strong\u003e Features a field-adjustable setpoint to match specific \u003cstrong\u003enatural gas or propane\u003c\/strong\u003e inlet requirements.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRugged Industrial Build:\u003c\/strong\u003e Heavy-duty brass housing resists corrosion and handles standard industrial pressure fluctuations.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSafety Compliance:\u003c\/strong\u003e Assists in meeting \u003cstrong\u003elow gas pressure interlock\u003c\/strong\u003e requirements for commercial and industrial codes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cstrong\u003eCommon Questions\u003c\/strong\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I test the Patterson-Kelley 26-0000-0296 during service?\u003c\/strong\u003e\u003cbr\u003e\nClose the main manual gas cock and initiate a call for heat. The boiler should attempt pre-purge but stay in a lockout state as the \u003cstrong\u003elow gas pressure switch\u003c\/strong\u003e detects the lack of supply pressure, confirming the safety circuit is functional.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat causes a low gas pressure switch to trip frequently?\u003c\/strong\u003e\u003cbr\u003e\nFrequent trips often indicate an undersized gas header, a failing primary regulator, or a clogged sediment trap. Ensure the 14-inch W.C. maximum inlet pressure is not exceeded to avoid damaging the switch internal diaphragm.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eIs this switch compatible with propane systems?\u003c\/strong\u003e\u003cbr\u003e\nYes, the \u003cstrong\u003e26-0000-0296\u003c\/strong\u003e is designed for use with both \u003cstrong\u003enatural gas and LPG\u003c\/strong\u003e, provided the pressure settings are adjusted to the manufacturer's specified minimums for the fuel type being used.\u003c\/p\u003e\n\n\u003cp\u003eDisclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.\u003c\/p\u003e","brand":"Patterson-Kelley","offers":[{"title":"Default Title","offer_id":43381698691250,"sku":"26-0000-0296","price":82.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1838\/2375\/files\/Pic_2fc5c2dd-db93-4f2f-969c-d87fb98a91b8.png?v=1698705674","url":"https:\/\/www.gsistore.com\/en-ca\/products\/patterson-kelley-26-0000-0296","provider":"GSIstore","version":"1.0","type":"link"}