{"id":11842,"date":"2026-04-29T17:51:56","date_gmt":"2026-04-29T15:51:56","guid":{"rendered":"https:\/\/lubeteam.it\/prodotto\/metal-breather-plug-miselli-series-kmf-kmv\/"},"modified":"2026-05-04T16:49:26","modified_gmt":"2026-05-04T14:49:26","slug":"metal-breather-plug-miselli-series-kmf-kmv","status":"publish","type":"product","link":"https:\/\/lubeteam.it\/en\/product\/metal-breather-plug-miselli-series-kmf-kmv\/","title":{"rendered":"Metal Breather Plug Miselli Series KMF – KMV"},"content":{"rendered":"

The product known as the Miselli Metal Breather Plug Series KMF – KMV is a fundamental technical component for the proper operation of hydraulic and mechanical systems<\/span><\/span>. <\/span>From a structural standpoint, these specific filling and breather plugs are made using brass as the main body material, thus ensuring high mechanical reliability<\/span><\/span>. <\/span>Regarding the hydraulic sealing system, it is ensured through the use of a flat washer gasket<\/span><\/span>. <\/span>This washer is made as standard from FASIT 202 fiber<\/span><\/span>. <\/span>However, to meet different system requirements, the gasket is also available in aluminum upon request<\/span><\/span>. <\/span>The component\u2019s construction includes two breather holes precisely positioned below the hexagon<\/span><\/span>. <\/span>This configuration ensures good venting flow during machine operation<\/span><\/span>. <\/span>Additionally, to withstand particularly aggressive external agents, a version entirely made of AISI 316 stainless steel is available upon request<\/span><\/span>.<\/span><\/p>\n

Operating Principle and Structure of the KMF Series<\/h3>\n

The technical variant identified as the KMF series has been specifically developed to operate in demanding conditions, particularly for applications in dusty environments<\/span><\/span>. <\/span>To address these conditions, the KMF version includes a protective filtering element<\/span><\/span>. <\/span>Specifically, this consists of a galvanized steel air filter positioned directly inside the plug<\/span><\/span>. <\/span>This internal element provides an indicative filtration rating of 200\u03bc, protecting the system from external contamination<\/span><\/span>.<\/span><\/p>\n

Dynamics and Calibration of the KMV Series with One-Way Valve<\/h3>\n

The KMV variant represents the engineered solution for applications where venting is strictly required to occur only in the outward direction<\/span><\/span>. <\/span>This venting process is triggered exclusively in the presence of internal overpressure within the system<\/span><\/span>. <\/span>The core of this component is the action of a check valve integrated into the plug body<\/span><\/span>. <\/span>This valve is precisely regulated by an internal spring calibrated to approximately 0.4 bar<\/span><\/span>. <\/span>This one-way mechanism allows safe venting while preventing the entry of environmental impurities into the housing<\/span><\/span>. <\/span>At the same time, it prevents oil from escaping to the outside<\/span><\/span>. <\/span>The effectiveness of this system always operates in accordance with specific working conditions and the type of oil used within the system<\/span><\/span>.<\/span><\/p>\n

Applications and Dimensional Specifications<\/h3>\n

Metal breather plugs of the KMF and KMV series are particularly suitable for direct application on a wide range of industrial equipment<\/span><\/span>. <\/span>They are ideal for installation on gearboxes, variators, multipliers, gear housings, and transmission components in general<\/span><\/span>. <\/span>Dimensional specifications cover various standardized sizes to universally fit connections<\/span><\/span>. <\/span>Models KMF\/14 and KMV\/14 feature a G 1\/4″ thread, a wrench size (Ch) of 18, height h1 of 15.5 and h2 of 9<\/span><\/span>. <\/span>Models KMF\/38 and KMV\/38 use a G 3\/8″ thread, wrench size (Ch) 22, height h1 14.5 and h2 10<\/span><\/span>. <\/span>Finally, models KMF\/12 and KMV\/12 feature G 1\/2″ thread, wrench size (Ch) 27, height h1 14.5 and h2 10<\/span><\/span>.<\/span><\/p>\n

Technical Summary Table<\/h3>\n

Technical summary table of the main characteristics of the Miselli Metal Breather Plug Series KMF – KMV<\/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
Body Material<\/td>\nBrass (On request: AISI 316 stainless steel)<\/td>\n<\/tr>\n
Gasket Material<\/td>\nFlat fiber FASIT 202 (On request: Aluminum)<\/td>\n<\/tr>\n
Breather Holes<\/td>\nTwo, positioned below the hexagon<\/td>\n<\/tr>\n
Filter System (KMF Series)<\/td>\nGalvanized steel air filter, approx. 200\u03bc filtration rating<\/td>\n<\/tr>\n
Valve System (KMV Series)<\/td>\nCheck valve with spring calibrated at approx. 0.4 bar<\/td>\n<\/tr>\n
Recommended Applications<\/td>\nGearboxes, variators, multipliers, gear housings, transmission components<\/td>\n<\/tr>\n
Models G 1\/4″<\/td>\nCode KMF\/14 – KMV\/14 (Ch: 18, h1: 15.5, h2: 9)<\/td>\n<\/tr>\n
Models G 3\/8″<\/td>\nCode KMF\/38 – KMV\/38 (Ch: 22, h1: 14.5, h2: 10)<\/td>\n<\/tr>\n
Models G 1\/2″<\/td>\nCode KMF\/12 – KMV\/12 (Ch: 27, h1: 14.5, h2: 10)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

The Miselli Metal Breather Plug Series KMF – KMV is designed in brass to ensure effective venting of gearboxes and transmission components<\/span><\/span>. <\/span>Equipped with a flat FASIT 202 fiber gasket, it ensures optimal hydraulic sealing<\/span><\/span>. <\/span>The KMF series integrates a 200\u03bc galvanized steel air filter, ideal for dusty environments<\/span><\/span>. <\/span>The KMV series features a one-way valve calibrated at 0.4 bar, allowing venting under overpressure while preventing impurity ingress or oil leakage<\/span><\/span>.<\/span><\/p>\n","protected":false},"featured_media":11737,"template":"","meta":[],"product_brand":[],"product_cat":[98,453],"product_tag":[258],"class_list":{"0":"post-11842","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-accessories-for-hydraulic-power-units","7":"product_cat-metal-plugs-and-breathers","8":"product_tag-miselli","10":"first","11":"instock","12":"shipping-taxable","13":"product-type-simple"},"yoast_head":"\nMetal Breather Plug Miselli Series KMF - KMV \u2013 LubeTeam Hydraulic<\/title>\n<meta name=\"description\" content=\"Miselli Metal Breather Plug Series KMF - KMV in brass for transmissions and gearboxes. 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