{"product_id":"hongsen-erf22-erf22w-r22-thermostatic-expansion-valves","title":"HONGSEN ERF22 and ERF22W R22 Thermostatic Expansion Valves","description":"\u003ch1\u003eProduct Description\u003c\/h1\u003e\n\u003cp\u003eThe HONGSEN ERF22 and ERF22W Series thermostatic expansion valves are designed to regulate the flow of R22 refrigerant into direct-expansion evaporators according to the evaporator outlet superheat.\u003c\/p\u003e\n\u003cp\u003eTwo connection and pressure-equalization configurations are available:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eERF22:\u003c\/strong\u003e internally equalized valve with metric flare connections\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eERF22W:\u003c\/strong\u003e externally equalized valve with inch SAE flare connections and a 1\/4 SAE external equalizer port\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eMultiple orifice sizes are available to cover nominal refrigeration capacities from 3.5 to 52.7 kW under the manufacturer’s stated rating conditions. Selecting the correct model requires confirmation of the refrigerant, cooling capacity, evaporating temperature, condensing temperature, pressure drop and required connection sizes.\u003c\/p\u003e\n\u003cp\u003eThe complete valve model and connection configuration should be confirmed before ordering.\u003c\/p\u003e\n\u003ch1\u003eKey Features\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for R22 refrigeration systems\u003c\/li\u003e\n\u003cli\u003eAutomatic refrigerant-flow regulation according to superheat\u003c\/li\u003e\n\u003cli\u003eInternal and external equalization options\u003c\/li\u003e\n\u003cli\u003eMetric flare and inch SAE flare configurations\u003c\/li\u003e\n\u003cli\u003eMultiple orifice sizes from Ø1.0 to Ø9.0\u003c\/li\u003e\n\u003cli\u003eNominal capacities from 3.5 to 52.7 kW\u003c\/li\u003e\n\u003cli\u003eIntegrated inlet filtering component\u003c\/li\u003e\n\u003cli\u003eAdjustable valve mechanism\u003c\/li\u003e\n\u003cli\u003eSuitable for commercial refrigeration and cold-storage systems\u003c\/li\u003e\n\u003cli\u003eMultiple connection sizes for different system capacities\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch1\u003eTechnical Specifications\u003c\/h1\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eHONGSEN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Family\u003c\/td\u003e\n\u003ctd\u003eERF Series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eThermostatic Expansion Valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRefrigerant\u003c\/td\u003e\n\u003ctd\u003eR22\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eERF22 Configuration\u003c\/td\u003e\n\u003ctd\u003eInternal equalization\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eERF22 Connection Type\u003c\/td\u003e\n\u003ctd\u003eMetric flare\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eERF22W Configuration\u003c\/td\u003e\n\u003ctd\u003eExternal equalization\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eERF22W Connection Type\u003c\/td\u003e\n\u003ctd\u003eInch SAE flare\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExternal Equalizer\u003c\/td\u003e\n\u003ctd\u003e1\/4 SAE on ERF22W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAvailable Orifice Sizes\u003c\/td\u003e\n\u003ctd\u003eØ1.0–Ø9.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Capacity Range\u003c\/td\u003e\n\u003ctd\u003e3.5–52.7 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity Range\u003c\/td\u003e\n\u003ctd\u003e1.0–15.0 TR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandard Rating Evaporating Temperature\u003c\/td\u003e\n\u003ctd\u003e+5°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandard Rating Condensing Temperature\u003c\/td\u003e\n\u003ctd\u003e+40°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandard Rating Subcooling\u003c\/td\u003e\n\u003ctd\u003e2°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMain Application\u003c\/td\u003e\n\u003ctd\u003eRefrigerant flow control for direct-expansion evaporators\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch1\u003eAvailable Models\u003c\/h1\u003e\n\u003ch2\u003eERF22 Metric-Flare Models\u003c\/h2\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003ctable style=\"width: 100%; height: 215.532px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth style=\"width: 14.8502%; height: 19.5938px;\"\u003eModel\u003c\/th\u003e\n\u003cth style=\"width: 36.6682%; height: 19.5938px;\"\u003eStock Connection Reference\u003c\/th\u003e\n\u003cth style=\"width: 22.7159%; height: 19.5938px;\"\u003eNominal Capacity\u003c\/th\u003e\n\u003cth style=\"width: 21.1222%; height: 19.5938px;\"\u003eInventory SKU\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 14.8502%; height: 19.5938px;\"\u003eERF22-Ø1.0\u003c\/td\u003e\n\u003ctd style=\"width: 36.6682%; height: 19.5938px;\"\u003eDg8 × Dg10, metric\u003c\/td\u003e\n\u003ctd style=\"width: 22.7159%; height: 19.5938px;\"\u003e1.0 TR \/ 3.5 kW\u003c\/td\u003e\n\u003ctd style=\"width: 21.1222%; height: 19.5938px;\"\u003e5250-000A-Ø1.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 14.8502%; height: 19.5938px;\"\u003eERF22-Ø1.5\u003c\/td\u003e\n\u003ctd style=\"width: 36.6682%; height: 19.5938px;\"\u003eDg8 × Dg10, metric\u003c\/td\u003e\n\u003ctd style=\"width: 22.7159%; height: 19.5938px;\"\u003e1.6 TR \/ 5.6 kW\u003c\/td\u003e\n\u003ctd style=\"width: 21.1222%; height: 19.5938px;\"\u003e5250-000A-Ø1.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 14.8502%; height: 19.5938px;\"\u003eERF22-Ø2.0\u003c\/td\u003e\n\u003ctd style=\"width: 36.6682%; height: 19.5938px;\"\u003eDg8 × Dg10, metric\u003c\/td\u003e\n\u003ctd style=\"width: 22.7159%; height: 19.5938px;\"\u003e2.0 TR \/ 7.0 kW\u003c\/td\u003e\n\u003ctd style=\"width: 21.1222%; height: 19.5938px;\"\u003e5250-000A-Ø2.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 14.8502%; height: 19.5938px;\"\u003eERF22-Ø3.0\u003c\/td\u003e\n\u003ctd style=\"width: 36.6682%; height: 19.5938px;\"\u003eDg8 × Dg10, metric\u003c\/td\u003e\n\u003ctd style=\"width: 22.7159%; height: 19.5938px;\"\u003e3.0 TR \/ 10.5 kW\u003c\/td\u003e\n\u003ctd style=\"width: 21.1222%; height: 19.5938px;\"\u003e5250-000B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 14.8502%; height: 19.5938px;\"\u003eERF22-Ø4.0\u003c\/td\u003e\n\u003ctd style=\"width: 36.6682%; height: 19.5938px;\"\u003eDg8 × Dg10, metric\u003c\/td\u003e\n\u003ctd style=\"width: 22.7159%; height: 19.5938px;\"\u003e5.0 TR \/ 17.6 kW\u003c\/td\u003e\n\u003ctd style=\"width: 21.1222%; height: 19.5938px;\"\u003e5250-000C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 14.8502%; height: 19.5938px;\"\u003eERF22-Ø5.0\u003c\/td\u003e\n\u003ctd style=\"width: 36.6682%; height: 19.5938px;\"\u003eDg8 × Dg13, metric\u003c\/td\u003e\n\u003ctd style=\"width: 22.7159%; height: 19.5938px;\"\u003e6.0 TR \/ 21.0 kW\u003c\/td\u003e\n\u003ctd style=\"width: 21.1222%; height: 19.5938px;\"\u003e5252-000A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 14.8502%; height: 19.5938px;\"\u003eERF22-Ø6.0\u003c\/td\u003e\n\u003ctd style=\"width: 36.6682%; height: 19.5938px;\"\u003eDg8 × Dg13, metric\u003c\/td\u003e\n\u003ctd style=\"width: 22.7159%; height: 19.5938px;\"\u003e7.5 TR \/ 26.0 kW\u003c\/td\u003e\n\u003ctd style=\"width: 21.1222%; height: 19.5938px;\"\u003e5252-000B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 14.8502%; height: 19.5938px;\"\u003eERF22-Ø7.0\u003c\/td\u003e\n\u003ctd style=\"width: 36.6682%; height: 19.5938px;\"\u003eDg10 × Dg13, metric\u003c\/td\u003e\n\u003ctd style=\"width: 22.7159%; height: 19.5938px;\"\u003e8.5 TR \/ 29.9 kW\u003c\/td\u003e\n\u003ctd style=\"width: 21.1222%; height: 19.5938px;\"\u003eERF22-7-00G\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 14.8502%; height: 19.5938px;\"\u003eERF22-Ø8.0\u003c\/td\u003e\n\u003ctd style=\"width: 36.6682%; height: 19.5938px;\"\u003eDg10 × Dg13, metric\u003c\/td\u003e\n\u003ctd style=\"width: 22.7159%; height: 19.5938px;\"\u003e12.0 TR \/ 42.2 kW\u003c\/td\u003e\n\u003ctd style=\"width: 21.1222%; height: 19.5938px;\"\u003eERF22-8-00G\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 14.8502%; height: 19.5938px;\"\u003eERF22-Ø9.0\u003c\/td\u003e\n\u003ctd style=\"width: 36.6682%; height: 19.5938px;\"\u003eDg10 × Dg13, metric\u003c\/td\u003e\n\u003ctd style=\"width: 22.7159%; height: 19.5938px;\"\u003e15.0 TR \/ 52.7 kW\u003c\/td\u003e\n\u003ctd style=\"width: 21.1222%; height: 19.5938px;\"\u003eERF22-9-00G\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2\u003eERF22W Inch-Flare Models\u003c\/h2\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eInlet × Outlet\u003c\/th\u003e\n\u003cth\u003eExternal Equalizer\u003c\/th\u003e\n\u003cth\u003eNominal Capacity\u003c\/th\u003e\n\u003cth\u003eInventory SKU\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eERF22W-Ø3.0\u003c\/td\u003e\n\u003ctd\u003e3\/8 × 1\/2 SAE\u003c\/td\u003e\n\u003ctd\u003e1\/4 SAE\u003c\/td\u003e\n\u003ctd\u003e3.0 TR \/ 10.5 kW\u003c\/td\u003e\n\u003ctd\u003e5261-000B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eERF22W-Ø4.0\u003c\/td\u003e\n\u003ctd\u003e3\/8 × 1\/2 SAE\u003c\/td\u003e\n\u003ctd\u003e1\/4 SAE\u003c\/td\u003e\n\u003ctd\u003e5.0 TR \/ 17.6 kW\u003c\/td\u003e\n\u003ctd\u003e5261-000C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eERF22W-Ø5.0\u003c\/td\u003e\n\u003ctd\u003e1\/2 × 5\/8 SAE\u003c\/td\u003e\n\u003ctd\u003e1\/4 SAE\u003c\/td\u003e\n\u003ctd\u003e6.0 TR \/ 21.0 kW\u003c\/td\u003e\n\u003ctd\u003e5263-000A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eERF22W-Ø6.0\u003c\/td\u003e\n\u003ctd\u003e1\/2 × 5\/8 SAE\u003c\/td\u003e\n\u003ctd\u003e1\/4 SAE\u003c\/td\u003e\n\u003ctd\u003e7.5 TR \/ 26.5 kW\u003c\/td\u003e\n\u003ctd\u003e5263-000B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eERF22W-Ø7.0\u003c\/td\u003e\n\u003ctd\u003e1\/2 × 5\/8 SAE\u003c\/td\u003e\n\u003ctd\u003e1\/4 SAE\u003c\/td\u003e\n\u003ctd\u003e8.5 TR \/ 29.9 kW\u003c\/td\u003e\n\u003ctd\u003eERF22W-7-00Y\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eERF22W-Ø9.0\u003c\/td\u003e\n\u003ctd\u003e1\/2 × 5\/8 SAE\u003c\/td\u003e\n\u003ctd\u003e1\/4 SAE\u003c\/td\u003e\n\u003ctd\u003e15.0 TR \/ 52.7 kW\u003c\/td\u003e\n\u003ctd\u003eERF22W-9-00Y\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch1\u003eModel Selection Guidance\u003c\/h1\u003e\n\u003cp\u003eSelect the required valve according to:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRefrigerant type\u003c\/li\u003e\n\u003cli\u003eRequired nominal cooling capacity\u003c\/li\u003e\n\u003cli\u003eEvaporating and condensing temperatures\u003c\/li\u003e\n\u003cli\u003eLiquid-line pressure drop\u003c\/li\u003e\n\u003cli\u003eInternal or external equalization requirement\u003c\/li\u003e\n\u003cli\u003eInlet and outlet connection sizes\u003c\/li\u003e\n\u003cli\u003eEvaporator pressure drop\u003c\/li\u003e\n\u003cli\u003eRequired orifice size\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eExternal equalization is recommended where the evaporator or distributor creates a significant pressure drop. Final selection should be completed by a qualified refrigeration technician.\u003c\/p\u003e\n\u003ch1\u003eApplications\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli\u003eWalk-in cooler and freezer systems\u003c\/li\u003e\n\u003cli\u003eCommercial refrigeration equipment\u003c\/li\u003e\n\u003cli\u003eCold-storage condensing units\u003c\/li\u003e\n\u003cli\u003eDisplay cabinets\u003c\/li\u003e\n\u003cli\u003eRefrigerated warehouses\u003c\/li\u003e\n\u003cli\u003eFood-processing refrigeration systems\u003c\/li\u003e\n\u003cli\u003eDirect-expansion evaporators\u003c\/li\u003e\n\u003cli\u003eOther compatible R22 refrigeration systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch1\u003eInstallation Notes\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli\u003eConfirm the refrigerant and valve capacity before installation.\u003c\/li\u003e\n\u003cli\u003eCheck the flow-direction arrow on the valve body.\u003c\/li\u003e\n\u003cli\u003eInstall the sensing bulb securely on a clean horizontal suction line.\u003c\/li\u003e\n\u003cli\u003ePosition the bulb according to accepted refrigeration practice.\u003c\/li\u003e\n\u003cli\u003eConnect the external equalizer downstream of the sensing-bulb position.\u003c\/li\u003e\n\u003cli\u003ePrevent excessive installation heat from reaching the power element.\u003c\/li\u003e\n\u003cli\u003eLeak-test the system after installation.\u003c\/li\u003e\n\u003cli\u003eInstallation and adjustment must be performed by a qualified refrigeration technician.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HONGSEN","offers":[{"title":"ERF22 \/ ERF22-Ø1.0","offer_id":44023565254715,"sku":null,"price":19.0,"currency_code":"USD","in_stock":true},{"title":"ERF22 \/ ERF22-Ø1.5","offer_id":44023565287483,"sku":null,"price":19.0,"currency_code":"USD","in_stock":true},{"title":"ERF22 \/ ERF22-Ø2.0","offer_id":44023565320251,"sku":null,"price":19.0,"currency_code":"USD","in_stock":true},{"title":"ERF22 \/ ERF22-Ø3.0","offer_id":44023565353019,"sku":null,"price":19.0,"currency_code":"USD","in_stock":true},{"title":"ERF22 \/ ERF22-Ø4.0","offer_id":44023565385787,"sku":null,"price":19.0,"currency_code":"USD","in_stock":true},{"title":"ERF22 \/ ERF22-Ø5.0","offer_id":44023565418555,"sku":null,"price":20.0,"currency_code":"USD","in_stock":true},{"title":"ERF22 \/ ERF22-Ø6.0","offer_id":44023565451323,"sku":null,"price":20.0,"currency_code":"USD","in_stock":true},{"title":"ERF22 \/ ERF22-Ø7.0","offer_id":44023565484091,"sku":null,"price":20.0,"currency_code":"USD","in_stock":true},{"title":"ERF22 \/ ERF22-Ø8.0","offer_id":44023565516859,"sku":null,"price":23.0,"currency_code":"USD","in_stock":true},{"title":"ERF22 \/ ERF22-Ø9.0","offer_id":44023565549627,"sku":null,"price":24.0,"currency_code":"USD","in_stock":true},{"title":"ERF22W \/ ERF22W-Ø3.0","offer_id":44023565910075,"sku":null,"price":20.0,"currency_code":"USD","in_stock":true},{"title":"ERF22W \/ ERF22W-Ø4.0","offer_id":44023565942843,"sku":null,"price":20.0,"currency_code":"USD","in_stock":true},{"title":"ERF22W \/ ERF22W-Ø5.0","offer_id":44023565975611,"sku":null,"price":20.0,"currency_code":"USD","in_stock":true},{"title":"ERF22W \/ ERF22W-Ø6.0","offer_id":44023566008379,"sku":null,"price":20.0,"currency_code":"USD","in_stock":true},{"title":"ERF22W \/ ERF22W-Ø7.0","offer_id":44023566041147,"sku":null,"price":23.0,"currency_code":"USD","in_stock":true},{"title":"ERF22W \/ ERF22W-Ø9.0","offer_id":44023566073915,"sku":null,"price":26.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0683\/8920\/8123\/files\/2026-08-21_112806_633.png?v=1787283374","url":"https:\/\/xiaxuecoldroom.com\/products\/hongsen-erf22-erf22w-r22-thermostatic-expansion-valves","provider":"XIAXUE Refrigeration","version":"1.0","type":"link"}