{"id":70088,"date":"2023-06-19T15:59:51","date_gmt":"2023-06-19T13:59:51","guid":{"rendered":"https:\/\/www.refrigerantboys.com\/?post_type=product&#038;p=70088"},"modified":"2026-09-15T11:50:03","modified_gmt":"2026-09-15T09:50:03","slug":"thermostatic-expansion-valve-refrigerant-boys-tn2-series-for-r134a-flare-threaded-connections-with-sensor-bulb","status":"publish","type":"product","link":"https:\/\/www.refrigerantboys.com\/en\/buy\/components-for-refrigeration\/expansion-valves\/thermostatic-expansion-valve-refrigerant-boys-tn2-series-for-r134a-flare-threaded-connections-with-sensor-bulb\/","title":{"rendered":"Refrigerant Boys TN2 Series Thermostatic Expansion Valve for R134a \u2013 Flare Threaded Connections with Sensor Bulb"},"content":{"rendered":"<p data-path-to-node=\"5\"><b data-path-to-node=\"5\" data-index-in-node=\"0\">Constant Thermostatic Control and Maximum Compressor Protection<\/b><\/p>\n<p data-path-to-node=\"5\"><b data-path-to-node=\"5\" data-index-in-node=\"93\">The Refrigerant Boys TN2 series<\/b> thermostatic valve is designed to manage the thermodynamic properties and pressure-temperature curves of <b data-path-to-node=\"5\" data-index-in-node=\"247\">R134a<\/b> refrigerant with the utmost precision. By constantly modulating the refrigerant flow rate based on the actual thermal load, the valve prevents the risk of liquid slugging in the compressor and ensures complete wetting of the evaporator coil for optimal cooling performance.<\/p>\n<p data-path-to-node=\"6\"><b data-path-to-node=\"6\" data-index-in-node=\"0\">Strengths &amp; Advantages:<\/b><\/p>\n<ul data-path-to-node=\"7\">\n<li>\n<p data-path-to-node=\"7,0,0\"><b data-path-to-node=\"7,0,0\" data-index-in-node=\"0\">Specific Calibration for R134a:<\/b> Designed and charged to operate precisely within the typical operating ranges of medium-temperature air conditioning and refrigeration (chillers, refrigerated display cases, beverage coolers).<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"7,1,0\"><b data-path-to-node=\"7,1,0\" data-index-in-node=\"0\">Male SAE Flare Connections:<\/b> Threaded flare fittings that facilitate quick installation or replacement on-site, eliminating the risk of internal component overheating caused by brazing operations.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"7,2,0\"><b data-path-to-node=\"7,2,0\" data-index-in-node=\"0\">Stainless Steel Sensing Element:<\/b> A stainless steel diaphragm and head laser-welded to ensure an airtight seal, resistance to pressure surges, and long-term stability without refrigerant leakage from the bulb.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"7,3,0\"><b data-path-to-node=\"7,3,0\" data-index-in-node=\"0\">High Thermal Responsiveness Sensor Bulb:<\/b> The compact cylindrical bulb connected to the coiled capillary tube instantly detects temperature fluctuations in the suction line, transmitting the correction to the diaphragm in a matter of milliseconds.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"7,4,0\"><b data-path-to-node=\"7,4,0\" data-index-in-node=\"0\">Superheat Adjustment Stem:<\/b> Equipped with a manual adjustment screw protected by a brass sealing cap, allowing the refrigeration technician to perform fine calibration of the static superheat during testing.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"7,5,0\"><b data-path-to-node=\"7,5,0\" data-index-in-node=\"0\">Full Compatibility with PAG and POE Oils:<\/b> Materials and internal seals are designed to be chemically resistant to both synthetic ester (POE) lubricants used in commercial refrigeration and PAG oils used in the automotive and refrigerated transport sectors.<\/p>\n<\/li>\n<\/ul>\n<p data-path-to-node=\"9\"><b data-path-to-node=\"9\" data-index-in-node=\"0\">TECHNICAL SPECIFICATIONS<\/b><\/p>\n<table data-path-to-node=\"10\">\n<thead>\n<tr>\n<td><strong>Feature<\/strong><\/td>\n<td><strong>Specifications<\/strong><\/td>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><span data-path-to-node=\"10,1,0,0\"><b data-path-to-node=\"10,1,0,0\" data-index-in-node=\"0\">Brand \/ Line<\/b><\/span><\/td>\n<td><span data-path-to-node=\"10,1,1,0\">Refrigerant Boys \u2013 TN2 Series<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"10,2,0,0\"><b data-path-to-node=\"10,2,0,0\" data-index-in-node=\"0\">Product Type<\/b><\/span><\/td>\n<td><span data-path-to-node=\"10,2,1,0\">Adjustable Mechanical Thermostatic Expansion Valve<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"10,3,0,0\"><b data-path-to-node=\"10,3,0,0\" data-index-in-node=\"0\">Compatible Refrigerant Gas<\/b><\/span><\/td>\n<td><span data-path-to-node=\"10,3,1,0\">R134a<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"10,4,0,0\"><b data-path-to-node=\"10,4,0,0\" data-index-in-node=\"0\">Types of Connections<\/b><\/span><\/td>\n<td><span data-path-to-node=\"10,4,1,0\">SAE Flare-Type Male Threads (flare)<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"10,5,0,0\"><b data-path-to-node=\"10,5,0,0\" data-index-in-node=\"0\">Pressure Equalization<\/b><\/span><\/td>\n<td><span data-path-to-node=\"10,5,1,0\">Internal (ideal for compact single-circuit evaporators)<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"10,6,0,0\"><b data-path-to-node=\"10,6,0,0\" data-index-in-node=\"0\">Valve Body Material<\/b><\/span><\/td>\n<td><span data-path-to-node=\"10,6,1,0\">Forged brass with high mechanical strength and corrosion resistance<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"10,7,0,0\"><b data-path-to-node=\"10,7,0,0\" data-index-in-node=\"0\">Thermostatic Element Material<\/b><\/span><\/td>\n<td><span data-path-to-node=\"10,7,1,0\">Stainless steel with laser welding<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"10,8,0,0\"><b data-path-to-node=\"10,8,0,0\" data-index-in-node=\"0\">Capillary Tube and Bulb<\/b><\/span><\/td>\n<td><span data-path-to-node=\"10,8,1,0\">Flexible capillary tube with a cylindrical stainless steel sensor bulb<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"10,9,0,0\"><b data-path-to-node=\"10,9,0,0\" data-index-in-node=\"0\">Lubricant Compatibility<\/b><\/span><\/td>\n<td><span data-path-to-node=\"10,9,1,0\">POE and PAG synthetic oils and mineral oils<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"10,10,0,0\"><b data-path-to-node=\"10,10,0,0\" data-index-in-node=\"0\">Temperature Ranges<\/b><\/span><\/td>\n<td><span data-path-to-node=\"10,10,1,0\">Medium- and high-temperature evaporation (MBP \/ HBP \/ A\/C)<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"10,11,0,0\"><b data-path-to-node=\"10,11,0,0\" data-index-in-node=\"0\">Applications<\/b><\/span><\/td>\n<td><span data-path-to-node=\"10,11,1,0\">Process chillers, water chillers, food display cases, beverage coolers, dehumidifiers, and small air conditioning systems<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p><b data-path-to-node=\"2\" data-index-in-node=\"77\">Refrigerant Boys TN2 Series<\/b> Professional Mechanical Thermostatic Expansion Valve, developed specifically for calibrated evaporator flow in medium-temperature commercial air conditioning and refrigeration systems operating with <b data-path-to-node=\"2\" data-index-in-node=\"284\">R134a<\/b> refrigerant. Constructed with a high-strength forged brass body, <b data-path-to-node=\"2\" data-index-in-node=\"372\">SAE Flare<\/b> threaded connections, a laser-welded hermetically sealed stainless steel head, and a sensor bulb on a flexible capillary tube for stable and continuous control of superheat.<\/p>\n","protected":false},"featured_media":70092,"template":"","meta":[],"product_cat":[315,346],"product_tag":[682,1278],"acf":{"ai_note":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Refrigerant Boys TN2 Series Thermostatic Expansion Valve for R134a \u2013 Flare Threaded Connections with Sensor Bulb | Refrigerant Boys<\/title>\n<meta name=\"description\" content=\"Refrigerant Boys TN2 Series Professional Mechanical Thermostatic Expansion Valve, developed specifically for calibrated evaporator flow in medium-temperature commercial air conditioning and refrigeration systems operating with R134a refrigerant. 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