{"product_id":"bell-gossett-105104lf-pdb37t-pressure-switch-with-3-4-hp-motor","title":"Bell \u0026 Gossett 105104LF PDB37T Pressure Switch with 3\/4 HP Motor","description":"\u003cp\u003eDesigned to sense and respond to pressure differentials in hydronic and HVAC loops, this switch safeguards equipment and maintains system efficiency. The **105104LF** model, Bell \u0026amp; Gossett PDB37T, integrates a 3\/4 HP motor for reliable actuation.\u003c\/p\u003e\u003cp\u003eThe unit uses a diaphragm element to detect pressure gaps between two points in a circuit. When the differential exceeds the preset limit, the internal lever trips the 3\/4 HP motor, opening or closing the contactor to protect downstream components.\u003c\/p\u003e\u003ch4\u003eKey System Performance Baselines:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDifferential Range:\u003c\/strong\u003e Adjustable 0‑5 psi for precise control.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResponse Time:\u003c\/strong\u003e Fast actuation within 0.3 seconds to prevent over‑pressurization.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor Load:\u003c\/strong\u003e 3\/4 HP motor ensures reliable operation under continuous cycling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e Designed for –20 °F to 180 °F ambient conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e⚠️ \u003cstrong\u003eApplication Profile:\u003c\/strong\u003e Ideal for chilled‑water pumps, boiler feed‑water circuits, HVAC condensers, and any hydronic system requiring differential pressure protection.\u003c\/p\u003e","brand":"Bell \u0026 Gossett","offers":[{"title":"Default Title","offer_id":43118553268318,"sku":"105104LF","price":5659.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/105104LF_image_d1dd9870-833b-403f-b911-5e9dce94df8b.jpg?v=1785976348","url":"https:\/\/nationalboilersupply.com\/products\/bell-gossett-105104lf-pdb37t-pressure-switch-with-3-4-hp-motor","provider":"National Boiler Supply","version":"1.0","type":"link"}