{"product_id":"hongsen-rf22-r22-extended-flare-expansion-valves","title":"HONGSEN RF22 R22 Internal Equalized Extended Flare Thermostatic Expansion Valves","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003ch4\u003eProduct Overview\u003c\/h4\u003e\n\u003cp\u003eThe HONGSEN RF22 Series consists of internally equalized thermostatic expansion valves designed for R22 refrigeration systems. These extended-type models use SAE flare inlet and outlet connections, providing a serviceable threaded installation for cold rooms and commercial refrigeration equipment.\u003c\/p\u003e\n\u003cp\u003eThe valve regulates liquid refrigerant flow entering the evaporator according to the superheat detected by the sensing bulb. This helps maintain stable evaporator operation and reduces the risk of excessive liquid refrigerant returning to the compressor.\u003c\/p\u003e\n\u003cp\u003eThe available models cover multiple orifice sizes from Ø1.0 to Ø5.0. Model selection must be based on refrigeration capacity, operating temperatures, refrigerant pressure drop and connection size—not on orifice size alone.\u003c\/p\u003e\n\u003cp\u003eHONGSEN states that its thermostatic expansion valves are intended for evaporator refrigerant-flow control in cold storage, ice-making, dehumidification, refrigeration and air-conditioning applications. \u003ca href=\"https:\/\/www.zjhsjx.com\/en\/sys-pd\/35.html\"\u003e\u003cspan\u003eHONGSEN official expansion-valve information\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for R22 refrigeration systems\u003c\/li\u003e\n\u003cli\u003eInternal pressure equalization\u003c\/li\u003e\n\u003cli\u003eExtended-type valve construction\u003c\/li\u003e\n\u003cli\u003eSAE flare inlet and outlet connections\u003c\/li\u003e\n\u003cli\u003eMultiple orifice sizes from Ø1.0 to Ø5.0\u003c\/li\u003e\n\u003cli\u003eServiceable threaded installation\u003c\/li\u003e\n\u003cli\u003eSuitable for small- and medium-capacity refrigeration systems\u003c\/li\u003e\n\u003cli\u003eSuperheat-controlled refrigerant flow\u003c\/li\u003e\n\u003cli\u003eSuitable for cold rooms and commercial refrigeration equipment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eItem\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\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eRF22\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\u003eEqualization\u003c\/td\u003e\n\u003ctd\u003eInternal Equalization\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnection Type\u003c\/td\u003e\n\u003ctd\u003eSAE Flare\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eExtended Type\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAvailable Orifice Sizes\u003c\/td\u003e\n\u003ctd\u003eØ1.0, Ø1.5, Ø2.0, Ø2.5, Ø3.0, Ø4.0, Ø5.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eZhejiang Hongsen Machinery Co., Ltd.\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\u003ch4\u003eAvailable Models\u003c\/h4\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\u003eSKU\u003c\/th\u003e\n\u003cth\u003eInlet × Outlet\u003c\/th\u003e\n\u003cth\u003eConfiguration\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eRF22-Ø1.0\u003c\/td\u003e\n\u003ctd\u003e01.32.378\u003c\/td\u003e\n\u003ctd\u003e3\/8 × 1\/2 in SAE\u003c\/td\u003e\n\u003ctd\u003eExtended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRF22-Ø1.5\u003c\/td\u003e\n\u003ctd\u003e01.32.379\u003c\/td\u003e\n\u003ctd\u003e3\/8 × 1\/2 in SAE\u003c\/td\u003e\n\u003ctd\u003eExtended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRF22-Ø2.0\u003c\/td\u003e\n\u003ctd\u003e01.32.380\u003c\/td\u003e\n\u003ctd\u003e3\/8 × 1\/2 in SAE\u003c\/td\u003e\n\u003ctd\u003eExtended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRF22-Ø2.5\u003c\/td\u003e\n\u003ctd\u003e01.32.381\u003c\/td\u003e\n\u003ctd\u003e3\/8 × 1\/2 in SAE\u003c\/td\u003e\n\u003ctd\u003eExtended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRF22-Ø3.0\u003c\/td\u003e\n\u003ctd\u003e01.32.382\u003c\/td\u003e\n\u003ctd\u003e3\/8 × 1\/2 in SAE\u003c\/td\u003e\n\u003ctd\u003eExtended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRF22-Ø4.0\u003c\/td\u003e\n\u003ctd\u003e01.32.383\u003c\/td\u003e\n\u003ctd\u003e3\/8 × 1\/2 in SAE\u003c\/td\u003e\n\u003ctd\u003eExtended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRF22-Ø5.0\u003c\/td\u003e\n\u003ctd\u003e01.32.384\u003c\/td\u003e\n\u003ctd\u003e3\/8 × 5\/8 in SAE\u003c\/td\u003e\n\u003ctd\u003eExtended\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\u003ch4\u003eApplications\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eCold room refrigeration systems\u003c\/li\u003e\n\u003cli\u003eCommercial display refrigeration\u003c\/li\u003e\n\u003cli\u003eRefrigerated cabinets\u003c\/li\u003e\n\u003cli\u003eIce-making equipment\u003c\/li\u003e\n\u003cli\u003eDehumidification equipment\u003c\/li\u003e\n\u003cli\u003eSmall- and medium-capacity evaporators\u003c\/li\u003e\n\u003cli\u003eRefrigeration maintenance and replacement projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eModel Selection Notice\u003c\/h4\u003e\n\u003cp\u003eBefore ordering, confirm:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRefrigerant is R22\u003c\/li\u003e\n\u003cli\u003eRequired refrigeration capacity\u003c\/li\u003e\n\u003cli\u003eEvaporating and condensing temperatures\u003c\/li\u003e\n\u003cli\u003eInlet and outlet flare sizes\u003c\/li\u003e\n\u003cli\u003eAvailable installation space\u003c\/li\u003e\n\u003cli\u003eRequired orifice size\u003c\/li\u003e\n\u003cli\u003eExisting valve model or nameplate information\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HONGSEN","offers":[{"title":"RF22-Ø1.0","offer_id":44023913709627,"sku":null,"price":14.0,"currency_code":"USD","in_stock":true},{"title":"RF22-Ø1.5","offer_id":44023913742395,"sku":null,"price":14.0,"currency_code":"USD","in_stock":true},{"title":"RF22-Ø2.0","offer_id":44023913775163,"sku":null,"price":14.0,"currency_code":"USD","in_stock":true},{"title":"RF22-Ø2.5","offer_id":44023913807931,"sku":null,"price":14.0,"currency_code":"USD","in_stock":true},{"title":"RF22-Ø3.0","offer_id":44023913840699,"sku":null,"price":14.0,"currency_code":"USD","in_stock":true},{"title":"RF22-Ø4.0","offer_id":44023913873467,"sku":null,"price":14.0,"currency_code":"USD","in_stock":true},{"title":"RF22-Ø5.0","offer_id":44023913906235,"sku":null,"price":14.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0683\/8920\/8123\/files\/2026-08-21_141141_659.png?v=1787292721","url":"https:\/\/xiaxuecoldroom.com\/products\/hongsen-rf22-r22-extended-flare-expansion-valves","provider":"XIAXUE Refrigeration","version":"1.0","type":"link"}