{"id":2925,"date":"2025-06-16T00:28:41","date_gmt":"2025-06-16T00:28:41","guid":{"rendered":"https:\/\/altal.md\/?post_type=product&#038;p=2925"},"modified":"2026-07-02T16:52:18","modified_gmt":"2026-07-02T13:52:18","slug":"filter-drier-307-sae-2","status":"publish","type":"product","link":"https:\/\/altal.md\/en\/filtru-deshidratator-reversibil-sfk-305-sae\/","title":{"rendered":"Reversible filter drier SFK-305 SAE 5\/8\u2033"},"content":{"rendered":"<h2><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Reversible filter drier SFK-305 SAE 5\/8\u2033<\/span><\/h2>\n<div class=\"product-essential\">\n<div class=\"product-shop\">\n<p><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">\u2014 is a high-quality device intended for use in <a style=\"color: #000000;\" href=\"https:\/\/altal.md\/en\/heat-pump-altal\/\" target=\"_blank\" rel=\"noopener\">heat pumps<\/a>. It works in <a style=\"color: #000000;\" href=\"https:\/\/en.wikipedia.org\/wiki\/Reversing_valve\" target=\"_blank\" rel=\"noopener\">reversible cycle<\/a>. It is designed to allow flow in the pump liquid line in both directions. This filter drier is used for refrigerants R12, R22, R32, R502, R134a, R404A, R407C, R410A, R507, as well as CFC, HCFC, HFC and specific lubricants. Filtration capacity reaches 0.10 microns. The internal check valve, made of nylon, ensures filtration in both directions. The removal of organic and inorganic acids is done with the help of activated aluminum oxide, and the moisture is removed with a molecular dryer. The addition of activated carbon in the drying core helps to remove wax at low operating temperatures.<\/span><\/p>\n<\/div>\n<h3 class=\"clearer\"><span style=\"font-family: arial, helvetica, sans-serif; font-size: 14pt; font-weight: bold; color: #000000;\">Technical features<\/span><\/h3>\n<\/div>\n<div class=\"product-collateral\">\n<div id=\"product_tabs_additional_contents\" class=\"product-tabs-content\">\n<table id=\"product-attribute-specs-table\" class=\"data-table\" style=\"height: 108px; width: 37.7226%;\" border=\"1\">\n<colgroup>\n<col width=\"180px\" \/>\n<col \/><\/colgroup>\n<tbody>\n<tr style=\"height: 10px;\">\n<th class=\"label\" style=\"height: 10px; width: 37.6105%;\"><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">He would be<\/span><\/th>\n<td class=\"data\" style=\"height: 10px; width: 36.9328%; text-align: center;\"><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">SFK<\/span><\/td>\n<\/tr>\n<tr style=\"height: 10px;\">\n<th class=\"label\" style=\"height: 26px; width: 37.6105%; text-align: left;\"><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Working pressure (PS)<\/span><\/th>\n<td class=\"data\" style=\"height: 26px; width: 36.9328%; text-align: center;\"><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">46 were<\/span><\/td>\n<\/tr>\n<tr style=\"height: 10px;\">\n<th class=\"label\" style=\"height: 36px; width: 37.6105%; text-align: left;\"><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Burst pressure<\/span><\/th>\n<td class=\"data\" style=\"height: 36px; width: 36.9328%; text-align: center;\"><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">175 were<\/span><\/td>\n<\/tr>\n<tr style=\"height: 10px;\">\n<th class=\"label\" style=\"height: 36px; width: 37.6105%; text-align: left;\"><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">CONNECTIONS<\/span><\/th>\n<td class=\"data\" style=\"height: 36px; width: 36.9328%; text-align: center;\"><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">5\/8\u2033 <strong>SAE<\/strong><\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Reversible filter drier SFK-305 SAE 5\/8\u2033<\/h3>\n<ul>\n<li><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">has a solid core consisting of a mixture of molecular sieve and activated aluminum. These adsorbents are fixed in the core using a synthetic adhesive material. The core is tightly clamped on both sides, and cotton pads are placed for protection. The retaining veins inside the filter direct the flow, which allows the fluid to operate in any direction in heat pumps. This construction ensures high efficiency of filtration and absorption of water and acids.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Reversible filter drier SFK-305 SAE (ZRK305, BFK305, ZFK-305) is available with threaded connection <strong>SAE 5\/8\u2033<\/strong>. We also offer models with 5\/8\u2033 ODF solder connection. For further details, please contact us.<\/span><\/p>\n<hr \/>\n<h2 data-section-id=\"1ypn5u\" data-start=\"0\" data-end=\"64\"><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\" role=\"text\"><strong data-start=\"4\" data-end=\"64\">FAQ \u2013 Reversible filter drier SFK-305 SAE (5\/8\u2033)<\/strong><\/span><\/h2>\n<p>&nbsp;<\/p>\n<h3 data-section-id=\"feejr9\" data-start=\"71\" data-end=\"132\"><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\" role=\"text\"><strong data-start=\"75\" data-end=\"132\">1. Where is the SFK-305 SAE 5\/8\u2033 reversible filter drier used?<\/strong><\/span><\/h3>\n<p data-start=\"133\" data-end=\"423\"><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">SFK-305 SAE filter drier is specially designed for reversible cycle heat pumps where the refrigerant flow changes depending on the heating\/cooling mode. It is used in 5\/8\u2033 SAE liquid lines in small and medium-sized residential and commercial installations.<\/span><\/p>\n<p data-start=\"425\" data-end=\"565\"><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">\ud83d\udc49 Compatible applications:<\/span><br data-start=\"450\" data-end=\"453\" \/><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">\/air-to-water-heat-pump-9kw-split<\/span><br data-start=\"488\" data-end=\"491\" \/><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">\/air-to-water-heat-pump-12kw-r32<\/span><br data-start=\"525\" data-end=\"528\" \/><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">\/awhp-series-inverter-heat-pumps<\/span><\/p>\n<hr data-start=\"567\" data-end=\"570\" \/>\n<h3 data-section-id=\"16o8upn\" data-start=\"572\" data-end=\"626\"><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\" role=\"text\"><strong data-start=\"576\" data-end=\"626\">2. What compressors does the SFK-305 SAE work with?<\/strong><\/span><\/h3>\n<p data-start=\"627\" data-end=\"892\"><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">This model is commonly used with scroll and rotary inverter compressors that work with modern refrigerants such as R32 and R410A. Its role is to protect the compressor from moisture and contaminants that can damage the valves and oil.<\/span><\/p>\n<p data-start=\"894\" data-end=\"1027\"><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">\ud83d\udc49 Compatible compressors:<\/span><br data-start=\"921\" data-end=\"924\" \/><a href=\"https:\/\/altal.md\/en\/scroll-compressor-ysw400a1g-100-53-kw\/\" target=\"_blank\" rel=\"noopener\">\/compresor-scroll-Invotech<\/a><br data-start=\"922\" data-end=\"925\" \/><a href=\"https:\/\/altal.md\/en\/scroll-compressor-zr190kc-tfd-522\/\" target=\"_blank\" rel=\"noopener\">\/scroll-compressor-Copeland<\/a><br data-start=\"948\" data-end=\"951\" \/><a href=\"https:\/\/altal.md\/en\/compresoare-hvac\/\" target=\"_blank\" rel=\"noopener\">\/compressors-heat-pumps-awhp-series<\/a><\/p>\n<hr data-start=\"1029\" data-end=\"1032\" \/>\n<h3 data-section-id=\"1yjnhf6\" data-start=\"1034\" data-end=\"1089\"><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\" role=\"text\"><strong data-start=\"1038\" data-end=\"1089\">3. Can it be installed together with a freon sight glass?<\/strong><\/span><\/h3>\n<p data-start=\"1090\" data-end=\"1321\"><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">Yes, the SFK-305 SAE is often installed together with a freon sight glass on the liquid line. This combination allows for visual checking of the refrigerant condition and quick detection of moisture or air bubbles in the circuit.<\/span><\/p>\n<p data-start=\"1323\" data-end=\"1455\"><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">\ud83d\udc49 Related products:<\/span><br data-start=\"1343\" data-end=\"1346\" \/><a href=\"https:\/\/altal.md\/en\/refrigerant-sight-glass-with-indicator-sy-h-05-odf-5-8\/\" target=\"_blank\" rel=\"noopener\">\/visor-freon-lfsg-5-8-mf<\/a><\/p>\n<hr data-start=\"1457\" data-end=\"1460\" \/>\n<h3 data-section-id=\"1f4t4u3\" data-start=\"1462\" data-end=\"1531\"><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\" role=\"text\"><strong data-start=\"1466\" data-end=\"1531\">4. Are there more robust alternatives for the same 5\/8\u2033 connection?<\/strong><\/span><\/h3>\n<p data-start=\"1532\" data-end=\"1795\"><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">For more demanding installations or systems with high refrigerant volumes, heavy-duty filter driers are available with the same 5\/8\u2033 SAE or ODF connection. These offer higher moisture absorption capacity and extended acid protection.<\/span><\/p>\n<p data-start=\"1797\" data-end=\"1934\"><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">\ud83d\udc49 Recommended alternatives:<\/span><br data-start=\"1824\" data-end=\"1827\" \/><a href=\"https:\/\/altal.md\/en\/filter-drier-kle-305-sae\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">\/filter-drier-kle-305<\/span><\/a><br data-start=\"1855\" data-end=\"1858\" \/><a href=\"https:\/\/altal.md\/en\/reversible-filter-drier-sfk-306-sae\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-family: arial, helvetica, sans-serif; color: #000000;\">\/filter-drier-sfk-306<\/span><\/a><\/p>\n<hr \/>\n<h3><span style=\"color: #000000; font-family: arial, helvetica, sans-serif;\"><a style=\"color: #000000;\" href=\"https:\/\/altal.md\/en\/reversible-filter-drier-sfk-085-sae\/\" target=\"_blank\" rel=\"noopener\">See other models<\/a><\/span><\/h3>\n<\/div>\n<\/div>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<div class=\"product-collateral\">\n<div id=\"product_tabs_additional_contents\" class=\"product-tabs-content\">\n<hr \/>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<h2><span style=\"color: #993366;\">Model: SFK305 Reversible SAE 5\/8\u2033<\/span><\/h2>\n<ul>\n<li class=\"tab-title\">Working pressure (PS): <strong>46 were<\/strong><\/li>\n<li class=\"tab-title\">Burst pressure: <strong>175 were<\/strong><\/li>\n<li class=\"tab-title\">Connections: <strong>5\/8\u2033 SAE (threaded)<\/strong><\/li>\n<li>Refrigerants: <strong>R22, R134a, R404A, R407C, R410A, R507<\/strong><br \/>\n<hr \/>\n<\/li>\n<\/ul>","protected":false},"featured_media":8545,"comment_status":"open","ping_status":"closed","template":"","meta":{"_kad_post_transparent":"default","_kad_post_title":"","_kad_post_layout":"default","_kad_post_sidebar_id":"","_kad_post_content_style":"default","_kad_post_vertical_padding":"default","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false},"product_brand":[198],"product_cat":[271],"product_tag":[275,910,274,1084],"class_list":["post-2925","product","type-product","status-publish","has-post-thumbnail","product_brand-altal","product_cat-filtre-deshidratoare","product_tag-5-8","product_tag-bidirectional","product_tag-filtru-deshidrator","product_tag-reversibil","product_shipping_class-greutate-mica","first","instock","featured","taxable","shipping-taxable","purchasable","product-type-simple","entry","content-bg","loop-entry"],"_links":{"self":[{"href":"https:\/\/altal.md\/en\/wp-json\/wp\/v2\/product\/2925","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/altal.md\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/altal.md\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/altal.md\/en\/wp-json\/wp\/v2\/comments?post=2925"}],"version-history":[{"count":1,"href":"https:\/\/altal.md\/en\/wp-json\/wp\/v2\/product\/2925\/revisions"}],"predecessor-version":[{"id":12035,"href":"https:\/\/altal.md\/en\/wp-json\/wp\/v2\/product\/2925\/revisions\/12035"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/altal.md\/en\/wp-json\/wp\/v2\/media\/8545"}],"wp:attachment":[{"href":"https:\/\/altal.md\/en\/wp-json\/wp\/v2\/media?parent=2925"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/altal.md\/en\/wp-json\/wp\/v2\/product_brand?post=2925"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/altal.md\/en\/wp-json\/wp\/v2\/product_cat?post=2925"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/altal.md\/en\/wp-json\/wp\/v2\/product_tag?post=2925"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}