{"product_id":"l404v1087-honeywell-oil-pressuretrol-limit-controller-10-150-psi-stainless-steel-diaphragm","title":"L404V1087 | Honeywell Oil Pressuretrol Limit Controller 10–150 psi Stainless-Steel Diaphragm","description":"\u003ch4\u003eDescription \u003c\/h4\u003e\n\u003cp data-end=\"396\" data-start=\"144\"\u003eThe Honeywell L404V1087 is an oil pressuretrol limit controller designed to regulate and monitor oil pressure in burner systems and fuel oil applications. With an adjustable 10–150 psi operating range and a stainless-steel diaphragm sensor, it ensures reliable, accurate control and safety shutoff in demanding industrial environments.\u003c\/p\u003e\n\u003cp class=\"\" data-end=\"574\" data-start=\"284\"\u003e \u003c\/p\u003e\n\u003cp class=\"\" data-end=\"574\" data-start=\"284\"\u003e \u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications \u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNew\/Never Used Surplus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHoneywell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eControls \u0026amp; Indicators\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eL404V1087\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSubcategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePressure Control\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eControl Function\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOil Pressure Limit Control\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Pressure Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10–150 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDifferential Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10–22 psi (adjustable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMounting Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e¼\"–18 NPT internal pipe thread or surface mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSensor Element\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStainless-steel diaphragm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eElectrical Connections\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eScrew terminals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSwitch Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSnap-acting SPDT switch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCircuit Action\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMakes circuit on pressure rise\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCover Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eClear plastic viewing window\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e–35 °F to +150 °F (–37 °C to +66 °C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eElectrical Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e120–240 VAC, typical for burner controls\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEnclosure\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMetal base with clear plastic cover\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFuel oil and heavy oil burner systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDifferential Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSubtractive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompliance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUL Listed \/ CSA Certified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2.00 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eInformation About \u003cspan data-sheets-root=\"1\"\u003eL404V1087\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003cp\u003eThe L404V1087 belongs to Honeywell’s L404 Pressuretrol series, built for high-precision control in oil-fired systems using light or heavy fuel oils. This model operates as a low-pressure limit control, making a circuit when oil pressure rises above the setpoint. It features a durable housing with a transparent plastic cover that allows easy viewing of settings and scale markings. Pressure adjustments are made by top-mounted screws, while the unit can be mounted using a ¼\" NPT internal pipe thread or directly through the case base for surface installations. Its stainless-steel diaphragm provides excellent resistance to fuel oils, ensuring dependable long-term performance under varying operating pressures.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAdjustable Pressure Range: Operates from 10 to 150 psi with a differential adjustable between 10 and 22 psi.\u003c\/li\u003e\n\u003cli\u003eSnap-Acting Switch Mechanism: Opens or closes an electrical circuit on pressure rise for precise, reliable control.\u003c\/li\u003e\n\u003cli\u003eTransparent Cover: Clear plastic housing allows direct observation of internal settings and scale.\u003c\/li\u003e\n\u003cli\u003eLow-Pressure Limit Operation: Makes circuit connection when oil pressure rises above the defined setpoint.\u003c\/li\u003e\n\u003cli\u003eVersatile Mounting: Supports ¼\"–18 NPT internal thread or surface mount through base of case.\u003c\/li\u003e\n\u003cli\u003eStainless-Steel Diaphragm: Corrosion-resistant element ensures accuracy and durability with fuel oils.\u003c\/li\u003e\n\u003cli\u003eGround Screw Terminal: Provides reliable grounding for electrical safety compliance.\u003c\/li\u003e\n\u003cli\u003eWide Temperature Range: Operates from –35 °F to +150 °F (–37 °C to +66 °C) for harsh environments.\u003c\/li\u003e\n\u003cli\u003eSimple Field Adjustment: Easily accessible top-mounted adjustment screws simplify calibration and maintenance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe L404V1087 delivers dependable performance and precise oil pressure control for heavy-duty burner and fuel oil systems.\u003c\/p\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":49105121607936,"sku":"L404V1087","price":821.73,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0388\/5331\/2557\/files\/17246.jpg?v=1785540717","url":"https:\/\/alotechparts.com\/products\/l404v1087-honeywell-oil-pressuretrol-limit-controller-10-150-psi-stainless-steel-diaphragm","provider":"Alo Tech Solutions","version":"1.0","type":"link"}