{"product_id":"liebert-191053p2-expansion-valve","title":"Liebert 191053P2 Expansion Valve","description":"\u003cp\u003eThe \u003cstrong\u003eLiebert 191053P2 Expansion Valve\u003c\/strong\u003e is a critical OEM \u003cstrong\u003emetering device\u003c\/strong\u003e engineered for precision refrigerant flow management in high-performance cooling environments. Designed specifically for \u003cstrong\u003edata center cooling\u003c\/strong\u003e and mission-critical \u003cstrong\u003eLiebert HVAC units\u003c\/strong\u003e, this externally equalized valve ensures the evaporator maintains an optimal \u003cstrong\u003esuperheat\u003c\/strong\u003e setpoint. By dynamically adjusting the \u003cstrong\u003eliquid refrigerant\u003c\/strong\u003e feed based on the heat load, it prevents liquid slugging at the compressor while maximizing thermal exchange efficiency. HVAC contractors rely on the \u003cstrong\u003e191053P2\u003c\/strong\u003e for its robust construction and direct compatibility with Vertiv\/Liebert systems, including the Mini-Mate and DS series. Whether you are performing a routine \u003cstrong\u003eexpansion valve replacement\u003c\/strong\u003e or troubleshooting a \u003cstrong\u003erefrigerant flow control\u003c\/strong\u003e issue in a server room, this genuine component provides the reliability needed for 24\/7 operations. It is essential for maintaining the tight temperature and humidity tolerances required by sensitive electronic equipment, ensuring your precision cooling system operates at peak energy efficiency without premature hardware fatigue.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrecise Superheat Control:\u003c\/strong\u003e Optimizes refrigerant flow to the evaporator to maintain stable discharge temperatures.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDirect OEM Compatibility:\u003c\/strong\u003e Engineered as a drop-in replacement for Liebert and Vertiv precision cooling systems.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnhanced System Protection:\u003c\/strong\u003e Prevents unevaporated liquid refrigerant from entering the compressor suction line.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Durability Design:\u003c\/strong\u003e Built to withstand the rigorous demands of continuous data center and laboratory environments.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIncreased Energy Efficiency:\u003c\/strong\u003e Ensures the cooling coil operates at maximum capacity relative to the sensible heat load.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cstrong\u003eCommon Questions\u003c\/strong\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the signs that a Liebert expansion valve needs replacement?\u003c\/strong\u003e\u003cbr\u003e\nTechnicians often observe erratic suction pressures, frosting at the evaporator inlet, or the inability to maintain a consistent superheat. If the valve remains stuck closed, you may see low suction pressure and a starved evaporator; if stuck open, high suction pressure and liquid floodback are common risks.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eIs the 191053P2 compatible with R-22 and R-407C systems?\u003c\/strong\u003e\u003cbr\u003e\nCompatibility depends on the specific pressure rating and charge of the power assembly. While many legacy Liebert systems utilized R-22, modern retrofits may use R-407C. You must verify that the refrigerant type matches the valve specifications to ensure accurate orifice sizing and superheat response.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDoes this valve come with an external equalizer line?\u003c\/strong\u003e\u003cbr\u003e\nYes, as an externally equalized valve, it accounts for the pressure drop across the evaporator coil, providing more accurate control than internally equalized models, especially in high-capacity precision units.\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":"Liebert","offers":[{"title":"Default Title","offer_id":40565183676594,"sku":"191053P2S","price":190.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1838\/2375\/products\/1_dfebe6bf-c0db-465c-a7b2-8e3e1aec30c8.jpg?v=1747955882","url":"https:\/\/www.gsistore.com\/products\/liebert-191053p2-expansion-valve","provider":"GSIstore","version":"1.0","type":"link"}