{"product_id":"porter-epc-1020-pressure-regulator-valve-for-thermo-lcq-duo","title":"Porter Pressure Regulator Valve for Thermo LCQ Duo","description":"\u003ch3\u003ePorter EPC-1020 Electronic Proportional Pressure Control Valve\u003c\/h3\u003e\n\u003cp\u003eThe Porter EPC-1020 is a high-precision, electromagnetically actuated proportional control valve specifically designed for closed-loop gas pressure regulation in analytical instrumentation. Within the Thermo Finnigan LCQ Duo and LCQ Advantage mass spectrometry systems, this valve (often designated under part number DEMB3628028) manages the precise delivery of nitrogen sheath and auxiliary gases. By utilizing DC-driven proportional actuation, the EPC-1020 ensures a steady, pulse-free gas flow, which is fundamental to maintaining stable spray conditions and reproducible ionization in the Atmospheric Pressure Ionization (API) source.\u003c\/p\u003e\n\u003ch3\u003eTechnical Performance and Design\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eProportional Control Precision:\u003c\/b\u003e Features a DC-driven, normally closed architecture that allows for infinitely variable valve positioning, providing a dynamic range greater than 50:1 for ultra-fine pressure adjustments.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eAnalytical Grade Cleaning:\u003c\/b\u003e Specifically cleaned and validated for use in mass spectrometry and chromatography environments, ensuring no outgassing or particulate contamination enters the sensitive gas pathways.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eBubble-Tight Shut-Off:\u003c\/b\u003e Equipped with a high-durability elastomeric valve seat (typically Viton® or Kalrez®) to provide a reliable seal when the system is in standby, preventing gas waste and pressure drift.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eLow Power Dissipation:\u003c\/b\u003e Engineered for high-efficiency operation (typically 0.8W), minimizing thermal transfer to the surrounding gas manifold and ensuring consistent gas density.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eProduct Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eCatalog Number:\u003c\/b\u003e EPC-1020\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eThermo Part Number Reference:\u003c\/b\u003e DEMB3628028 (Valve Assembly)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eValve Type:\u003c\/b\u003e Electronic Proportional Control (EPC)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eOperating Pressure:\u003c\/b\u003e Up to 200 PSIG\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eFlow Capacity:\u003c\/b\u003e Optimized for nitrogen nebulizing gas (Up to 10,000 SCCM depending on orifice configuration).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eConnection Interface:\u003c\/b\u003e Standard 1\/8\" or 1\/16\" compression fittings (System dependent).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eKey Benefits \u0026amp; Maintenance Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eIonization Stability:\u003c\/b\u003e The primary component for resolving \"Fluctuating Sheath Gas\" errors or erratic source pressure readouts that cause signal instability during ESI\/APCI runs.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eSource Tuning Recovery:\u003c\/b\u003e Essential for correcting issues where the instrument fails to reach the set gas flow units (e.g., Sheath Gas 80 units) during method initialization.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eModular Manifold Repair:\u003c\/b\u003e Designed for straightforward integration into the LCQ’s gas control manifold, allowing for the rapid replacement of sticking or leaking valves without full manifold overhauls.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eHigh Chemical Resilience:\u003c\/b\u003e Constructed with black-anodized aluminum or stainless steel wetted parts to ensure long-term compatibility with industrial-grade nitrogen and auxiliary gas types.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cp style=\"margin: 0; font-size: 0.8em;\"\u003e\u003ci\u003eAll product names, logos, and brands are property of their respective owners.\u003c\/i\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 0.8em;\"\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRemoved from a working machine, in excellent condition.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Porter","offers":[{"title":"Default Title","offer_id":48997269537020,"sku":"10646","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/8463\/5132\/files\/porter-epc-1020-pressure-regulator-valve-for-thermo-lcq-duo-air-pressure-regulators-porter-426357.jpg?v=1776468240","url":"https:\/\/lifesciencestrading.com\/products\/porter-epc-1020-pressure-regulator-valve-for-thermo-lcq-duo","provider":"Life Sciences Trading","version":"1.0","type":"link"}