{"id":11827,"date":"2026-04-29T11:55:40","date_gmt":"2026-04-29T09:55:40","guid":{"rendered":"https:\/\/lubeteam.it\/prodotto\/press-fit-breather-cap-miselli-tp-tpf-tpv-series\/"},"modified":"2026-05-04T16:37:14","modified_gmt":"2026-05-04T14:37:14","slug":"press-fit-breather-cap-miselli-tp-tpf-tpv-series","status":"publish","type":"product","link":"https:\/\/lubeteam.it\/en\/product\/press-fit-breather-cap-miselli-tp-tpf-tpv-series\/","title":{"rendered":"Press-Fit Breather Cap Miselli TP – TPF – TPV Series"},"content":{"rendered":"

The Miselli Press-Fit Breather Cap TP – TPF – TPV Series represents a fundamental engineering solution for the proper management of fluids inside hydraulic tanks and power units<\/span><\/span>. <\/span>The entire range is designed to offer different venting and internal pressure control methods, adapting to multiple hydraulic circuit configurations<\/span><\/span>.<\/span><\/p>\n

Construction Features and Materials<\/h3>\n

All components in the series are made of high-performance thermoplastic material, specifically Polyamide 66<\/span><\/span>. <\/span>The use of this polymer ensures excellent mechanical resistance, high dimensional stability, and excellent impact resistance<\/span><\/span>. <\/span>The caps are designed to operate in a demanding thermal range, supporting a maximum operating temperature of 100\u00b0C<\/span><\/span>. <\/span>The technical design includes a cylindrical head equipped with vertical lobes, ensuring optimal grip during installation or inspection<\/span><\/span>. <\/span>As standard, the component body is supplied in black, paired with a red cover<\/span><\/span>. <\/span>Graphically, the cover features the oil filling symbol and the wording “OIL” for the TP and TPF versions, while the TPV variant is identified by the valve graphic symbol<\/span><\/span>. <\/span>Cover customization is available upon request and for adequate quantities<\/span><\/span>. <\/span>Hydraulic sealing is provided by two NBR 70 Shore O-Ring gaskets, perfectly housed in their respective mechanical seats<\/span><\/span>.<\/span><\/p>\n

Variants and Operating Principle<\/h3>\n

The product family is divided into three main variants to cover every application requirement. <\/span>The TP series identifies standard press-fit breather caps<\/span><\/span>. <\/span>The TPF series integrates an air filter<\/span><\/span>. <\/span>This variant ensures a high venting flow rate and is therefore recommended for application on hydraulic systems characterized by sudden liquid volume changes, which cause the intake of large volumes of air<\/span><\/span>. <\/span>The use of the TPF series is recommended where there are no strong oil splashes or oil agitation<\/span><\/span>. <\/span>Where additional fluid-dynamic protection is required, the TPF\/18\/AL version equipped with an oil splash guard is available upon request<\/span><\/span>. <\/span>The TPV series, equipped with an integrated one-way valve, is specific for venting air outward in conditions of internal overpressure<\/span><\/span>. <\/span>The action of this valve, controlled by a spring calibrated at approximately 0.30 bar, allows venting while preventing the ingress of environmental impurities and blocking the escape of oil splashes<\/span><\/span>.<\/span><\/p>\n

Filtration Specifications<\/h3>\n

The standard filtration system for TPF models uses an air filter made of polyester-based reticulated polyurethane foam (PPI 60 as standard, PPI 90 upon request)<\/span><\/span>. <\/span>This material provides an indicative filtration rating of 30\u00b5<\/span><\/span>. <\/span>Maintenance operations are extremely quick, as the filter can be easily replaced by removing the red cover<\/span><\/span>. <\/span>For applications requiring different filter materials, the TPF\/BR model is available upon request, using a sintered bronze filter<\/span><\/span>.<\/span><\/p>\n

Installation Details<\/h3>\n

Regardless of the chosen variant (TP, TPF or TPV), the fastening system is exclusively press-fit<\/span><\/span>. <\/span>The coupling requires a hole sized according to the specific diameter of the cap, ensuring a hole tolerance of +0.1<\/span><\/span>. <\/span>For correct positioning and to prevent damage to the O-Rings, it is mandatory to provide a 1\/45\u00b0 entry chamfer<\/span><\/span>.<\/span><\/p>\n

Summary technical table of the main characteristics of the Miselli Press-Fit Breather Cap TP – TPF – TPV Series<\/h3>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Feature<\/th>\nValue<\/th>\n<\/tr>\n<\/thead>\n
Construction Material<\/td>\nThermoplastic (Polyamide 66)<\/td>\n<\/tr>\n
Maximum Operating Temperature<\/td>\n100\u00b0C<\/td>\n<\/tr>\n
Sealing Gaskets<\/td>\n2x O-Rings in NBR 70 Shore<\/td>\n<\/tr>\n
Mounting<\/td>\nPress-fit<\/td>\n<\/tr>\n
Housing hole tolerance<\/td>\n+0.1 (with 1\/45\u00b0 entry chamfer)<\/td>\n<\/tr>\n
Air Filter Material (standard TPF Series)<\/td>\nPolyester-based reticulated polyurethane foam (PPI 60 \/ PPI 90)<\/td>\n<\/tr>\n
Air Filter Material (TPF\/BR Series)<\/td>\nSintered bronze<\/td>\n<\/tr>\n
Filtration Rating (Indicative)<\/td>\n30\u00b5<\/td>\n<\/tr>\n
One-Way Valve Calibration (TPV Series)<\/td>\nApprox. 0.30 bar<\/td>\n<\/tr>\n
Available Hole Diameters (F)<\/td>\n18 mm, 20 mm, 26 mm, 30 mm<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

The Miselli Press-Fit Breather Cap TP – TPF – TPV Series is molded in Polyamide 66, ensuring stability and thermal resistance up to 100\u00b0C for hydraulic components<\/span><\/span>. <\/span>Designed for press-fit mounting with +0.1 tolerance, it ensures perfect hydraulic sealing thanks to two NBR 70 Shore O-Rings<\/span><\/span>. <\/span>The series offers optimal solutions for every need: standard caps (TP) <\/span><\/span>, with polyurethane or bronze filter (TPF) for 30\u00b5 filtration <\/span><\/span>, and versions with a one-way valve calibrated at 0.30 bar (TPV) for overpressure management<\/span><\/span>.<\/span><\/p>\n","protected":false},"featured_media":11764,"template":"","meta":[],"product_brand":[],"product_cat":[98,452],"product_tag":[258],"class_list":{"0":"post-11827","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":"\nPress-Fit Breather Cap Miselli TP - TPF - TPV Series \u2013 LubeTeam Hydraulic<\/title>\n<meta name=\"description\" content=\"Miselli Press-Fit Breather Cap TP - TPF - TPV Series in Polyamide 66. 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