{"id":11831,"date":"2026-04-29T11:55:45","date_gmt":"2026-04-29T09:55:45","guid":{"rendered":"https:\/\/lubeteam.it\/prodotto\/breather-cap-miselli-tmdf-al-tmdfa-al-series\/"},"modified":"2026-05-04T16:35:09","modified_gmt":"2026-05-04T14:35:09","slug":"breather-cap-miselli-tmdf-al-tmdfa-al-series","status":"publish","type":"product","link":"https:\/\/lubeteam.it\/en\/product\/breather-cap-miselli-tmdf-al-tmdfa-al-series\/","title":{"rendered":"Breather Cap Miselli TMDF-AL – TMDFA-AL Series"},"content":{"rendered":"

The Miselli Breather Cap TMDF-AL – TMDFA-AL Series represents a technical solution for filling and venting operations in hydraulic systems<\/span><\/span>. <\/span>The component design has been optimized to facilitate manual interaction by the operator: the grip is cylindrical and equipped with vertical lobes, a geometry specifically designed to promote and maximize grip during manual tightening phases<\/span><\/span>. <\/span>Visually, the main body of the cap is black, while the upper cover is red<\/span><\/span>. <\/span>The latter clearly displays the standard symbol for “oil filling” and the engraved wording “OIL”, ensuring quick identification of the function within the hydraulic circuit<\/span><\/span>. <\/span>The series is divided into two main configurations: the TMDF\/AL version, which acts as a standard breather cap with splash guard and filter, and the TMDFA\/AL version, which additionally integrates a dipstick for direct fluid control<\/span><\/span>.<\/span><\/p>\n

Construction Materials and Mechanical Resistance<\/h3>\n

The construction of this hydraulic element is based on the use of thermoplastic materials, specifically Polyamide 66<\/span><\/span>. <\/span>This construction choice gives the product excellent mechanical resistance, making it suitable for operation under demanding thermal conditions<\/span><\/span>. <\/span>The specifications indicate guaranteed operational sealing over an extremely wide temperature range, from low temperatures of -30\u00b0C up to high heat peaks of +100\u00b0C<\/span><\/span>. <\/span>In addition to thermal tolerance, Polyamide 66 ensures remarkable dimensional stability over time and high impact resistance<\/span><\/span>. <\/span>As regards hydraulic sealing, the cap relies on an O-Ring gasket made of 70 Shore oil-resistant NBR, a material that prevents leaks and withstands prolonged contact with oils<\/span><\/span>.<\/span><\/p>\n

Air Filtration System<\/h3>\n

Atmospheric contamination control is managed by an integrated filtering element<\/span><\/span>. <\/span>The air filter consists of polyester-based reticulated polyurethane foam<\/span><\/span>. <\/span>The filtration grade is classified as PPI 60, providing a barrier against particle ingress into the tank during system venting cycles<\/span><\/span>. <\/span>For specific data relating to the maximum air flow rate allowed by the component, the technical specifications refer to direct contact with the technical department<\/span><\/span>.<\/span><\/p>\n

Oil Splash Guard Protection System<\/h3>\n

The distinctive engineering feature of this line, which differentiates it from the previous TMDF\/TMDFA series, is the introduction of an oil splash guard<\/span><\/span>. <\/span>This protective element is positioned directly below the thread<\/span><\/span>. <\/span>Its primary function is to create a mechanical barrier capable of protecting the breather from the impact of occasional oil splashes<\/span><\/span>. <\/span>This protection is essential to maintain full component efficiency both during normal machine operation and to prevent issues caused by fluid movement during system transport<\/span><\/span>.<\/span><\/p>\n

Summary Technical Table<\/h3>\n

Summary technical table of the main characteristics of the Miselli Breather Cap TMDF-AL – TMDFA-AL Series<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Feature<\/th>\nValue<\/th>\n<\/tr>\n<\/thead>\n
Function<\/td>\nFiller and breather cap<\/td>\n<\/tr>\n
Body Material<\/td>\nThermoplastic (Polyamide 66)<\/td>\n<\/tr>\n
Sealing Gasket<\/td>\nO-Ring in 70 Shore oil-resistant NBR<\/td>\n<\/tr>\n
Air Filter<\/td>\nPolyester-based reticulated polyurethane foam (PPI 60)<\/td>\n<\/tr>\n
Operating Temperatures<\/td>\nFrom -30\u00b0C to +100\u00b0C<\/td>\n<\/tr>\n
Protection Feature<\/td>\nOil splash guard positioned below the thread<\/td>\n<\/tr>\n
Available Versions<\/td>\nTMDF\/AL (Without dipstick) \/ TMDFA\/AL (With integrated dipstick)<\/td>\n<\/tr>\n
GAS Threads (G)<\/td>\n3\/8″, 1\/2″, 3\/4″, 1″, 1 1\/4″<\/td>\n<\/tr>\n
Metric Threads (M)<\/td>\n14×1.5, 16×1.5, 18×1.5, 20×1.5, 22×1.5<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

The Miselli Breather Cap TMDF-AL – TMDFA-AL Series is a hydraulic filling and breather component, designed in thermoplastic material (Polyamide 66) to operate between -30\u00b0C and +100\u00b0C<\/span><\/span>. <\/span>It is equipped with a lobed grip for manual tightening, integrates an oil-resistant NBR O-Ring gasket (70 Shore), and a polyurethane air filter (PPI 60)<\/span><\/span>. <\/span>The special oil splash guard below the thread protects the breather from accidental splashes during machine operation or transport<\/span><\/span>. <\/span>Available in standard configurations or with dipstick (TMDFA)<\/span><\/span>.<\/span><\/p>\n","protected":false},"featured_media":11759,"template":"","meta":[],"product_brand":[],"product_cat":[98,452],"product_tag":[258],"class_list":{"0":"post-11831","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-accessories-for-hydraulic-power-units","7":"product_cat-filler-and-breather-caps","8":"product_tag-miselli","10":"first","11":"instock","12":"shipping-taxable","13":"product-type-simple"},"yoast_head":"\nBreather Cap Miselli TMDF-AL - TMDFA-AL Series \u2013 LubeTeam Hydraulic<\/title>\n<meta name=\"description\" content=\"Miselli Breather Cap TMDF-AL - TMDFA-AL Series in Polyamide 66, NBR O-Ring, PPI 60 air filter and oil splash guard. 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