{"id":11938,"date":"2021-04-07T14:13:30","date_gmt":"2021-04-07T18:13:30","guid":{"rendered":"https:\/\/hphydraulique.com\/faq\/"},"modified":"2026-11-04T13:46:08","modified_gmt":"2026-11-04T18:46:08","slug":"faq","status":"publish","type":"page","link":"https:\/\/hphydraulique.com\/en\/faq\/","title":{"rendered":"FAQ"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"11938\" class=\"elementor elementor-11938 elementor-2684\" data-elementor-post-type=\"page\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-20acb5a7 elementor-section-full_width elementor-section-height-default elementor-section-height-default\" data-id=\"20acb5a7\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-59ad30d8\" data-id=\"59ad30d8\" data-element_type=\"column\" data-e-type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-11c54719 elementor-section-content-middle elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"11c54719\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-no\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-2b9932dc\" data-id=\"2b9932dc\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-59643e2 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"59643e2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bce69f0 elementor-widget elementor-widget-heading\" data-id=\"bce69f0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">FREQUENTLY ASKED QUESTIONS (FAQ)<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6894b8ec elementor-widget elementor-widget-heading\" data-id=\"6894b8ec\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">How can we help you? Here you will find answers to the most frequently asked questions from our customers about hydraulic, pneumatic and mobile electronics systems. If the information you are looking for is not available, please do not hesitate to contact us. A member of our team will be happy to answer you.<\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-62a3dc22 elementor-widget elementor-widget-toggle\" data-id=\"62a3dc22\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"toggle.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-toggle\">\n\t\t\t\t\t\t\t<div class=\"elementor-toggle-item\">\n\t\t\t\t\t<h2 id=\"elementor-tab-title-1651\" class=\"elementor-tab-title\" data-tab=\"1\" role=\"button\" aria-controls=\"elementor-tab-content-1651\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon elementor-toggle-icon-right\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-closed\"><i class=\"fas fa-caret-right\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-opened\"><i class=\"elementor-toggle-icon-opened fas fa-caret-up\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-toggle-title\" tabindex=\"0\">How to prevent damage to a contamined hydraulic system?<\/a>\n\t\t\t\t\t<\/h2>\n\n\t\t\t\t\t<div id=\"elementor-tab-content-1651\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"1\" role=\"region\" aria-labelledby=\"elementor-tab-title-1651\"><p>Several measuring devices can prevent damage to a hydraulic system:<\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\">a filter maintenance indicator<\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\">a water content measuring device<\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\">a particle counter<\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">See our article on<\/span> <span style=\"font-weight: 400;\"><a href=\"https:\/\/hphydraulique.com\/en\/contamination-of-hydraulic-circuits\/\" target=\"_blank\" rel=\"noopener\">HYDRAULIC CIRCUIT CONTAMINATIONS<\/a><\/span> <span style=\"font-weight: 400;\">to learn more.<\/span><\/p>\n<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-toggle-item\">\n\t\t\t\t\t<h2 id=\"elementor-tab-title-1652\" class=\"elementor-tab-title\" data-tab=\"2\" role=\"button\" aria-controls=\"elementor-tab-content-1652\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon elementor-toggle-icon-right\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-closed\"><i class=\"fas fa-caret-right\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-opened\"><i class=\"elementor-toggle-icon-opened fas fa-caret-up\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-toggle-title\" tabindex=\"0\">How to avoid particle contamination of a hydraulic system when filling oil?<\/a>\n\t\t\t\t\t<\/h2>\n\n\t\t\t\t\t<div id=\"elementor-tab-content-1652\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"2\" role=\"region\" aria-labelledby=\"elementor-tab-title-1652\"><p><span style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">For manual filling, make sure the oil cap is clean and that you use a dry funnel (free of water or other fluids) and free of dust or particles.<span style=\"font-weight: 400;\"><span style=\"font-weight: 400;\"><span style=\"font-weight: 400;\"><\/span>The use of a filter pump to transfer oil from the gallon to the tank is a useful method of preventing contamination and ensuring the protection of the hydraulic system.<\/span><\/span><\/span><\/span><\/p>\n<p><span style=\"font-weight: 400;\"><span style=\"font-weight: 400;\"><span style=\"font-weight: 400;\"><\/span><\/span>See our article on <a href=\"https:\/\/hphydraulique.com\/en\/contamination-of-hydraulic-circuits\/\" target=\"_blank\" rel=\"noopener\">HYDRAULIC CIRCUIT CONTAMINATIONS<\/a>to learn more<\/span><\/p>\n<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-toggle-item\">\n\t\t\t\t\t<h2 id=\"elementor-tab-title-1653\" class=\"elementor-tab-title\" data-tab=\"3\" role=\"button\" aria-controls=\"elementor-tab-content-1653\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon elementor-toggle-icon-right\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-closed\"><i class=\"fas fa-caret-right\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-opened\"><i class=\"elementor-toggle-icon-opened fas fa-caret-up\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-toggle-title\" tabindex=\"0\">How to identific hydraulic contamination?<\/a>\n\t\t\t\t\t<\/h2>\n\n\t\t\t\t\t<div id=\"elementor-tab-content-1653\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"3\" role=\"region\" aria-labelledby=\"elementor-tab-title-1653\"><p>Tests are used to determine whether or not contaminants are present. This is most often done by analyzing the viscosity, water content, or solid content.<\/p>\n<p><span style=\"font-weight: 400;\">See our article on<\/span><a href=\"https:\/\/hphydraulique.com\/en\/contamination-of-hydraulic-circuits\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">HYDRAULIC CIRCUIT CONTAMINATIONS<\/span><\/a> <span style=\"font-weight: 400;\">to learn more.<\/span><\/p>\n<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-toggle-item\">\n\t\t\t\t\t<h2 id=\"elementor-tab-title-1654\" class=\"elementor-tab-title\" data-tab=\"4\" role=\"button\" aria-controls=\"elementor-tab-content-1654\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon elementor-toggle-icon-right\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-closed\"><i class=\"fas fa-caret-right\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-opened\"><i class=\"elementor-toggle-icon-opened fas fa-caret-up\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-toggle-title\" tabindex=\"0\">How to clean a contaminated hydraulic system?<\/a>\n\t\t\t\t\t<\/h2>\n\n\t\t\t\t\t<div id=\"elementor-tab-content-1654\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"4\" role=\"region\" aria-labelledby=\"elementor-tab-title-1654\"><p>To clean a contaminated hydraulic system, there are equipments which allow a depollution of the fluid in a hydraulic circuit.<\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\">Mobile filtration units can be connected to the circuit, allowing the fluid in the circuit to be depolluted<\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\">The installation of fluid purifiers is a more complete system to clean up a fluid contaminated by particles, water or gases.<\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\">In some major cases, a complete emptying followed by a cleaning is necessary.<\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">See our article on <\/span><span style=\"font-weight: 400;\"><a href=\"https:\/\/hphydraulique.com\/en\/contamination-of-hydraulic-circuits\/\" target=\"_blank\" rel=\"noopener\">HYDRAULIC CIRCUIT CONTAMINATIONS <\/a><\/span><span style=\"font-weight: 400;\">to learn more.<\/span><\/p>\n<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-toggle-item\">\n\t\t\t\t\t<h2 id=\"elementor-tab-title-1655\" class=\"elementor-tab-title\" data-tab=\"5\" role=\"button\" aria-controls=\"elementor-tab-content-1655\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon elementor-toggle-icon-right\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-closed\"><i class=\"fas fa-caret-right\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-opened\"><i class=\"elementor-toggle-icon-opened fas fa-caret-up\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-toggle-title\" tabindex=\"0\">What are the different types of hydraulic fittings?<\/a>\n\t\t\t\t\t<\/h2>\n\n\t\t\t\t\t<div id=\"elementor-tab-content-1655\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"5\" role=\"region\" aria-labelledby=\"elementor-tab-title-1655\"><p>There is a multitude of hydraulic fittings. They are differentiated according to several criteria:<\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\">Male or female connections,<\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\">Straight or angled fittings,<\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\">Rigid or swivel fittings.<\/li>\n<\/ul>\n<p>Hydraulic fittings are available in many sizes and depending on your needs, fittings should be selected according to the type of hydraulic hose (braided, spiral, high pressure, thermoplastic or other). For more information, see the <span style=\"font-weight: 400;\">TYPES OF FITTINGS AVAILABLE<\/span> from HP Hydraulics.<\/p><\/p>\n<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-toggle-item\">\n\t\t\t\t\t<h2 id=\"elementor-tab-title-1656\" class=\"elementor-tab-title\" data-tab=\"6\" role=\"button\" aria-controls=\"elementor-tab-content-1656\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon elementor-toggle-icon-right\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-closed\"><i class=\"fas fa-caret-right\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-opened\"><i class=\"elementor-toggle-icon-opened fas fa-caret-up\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-toggle-title\" tabindex=\"0\">What are Bosch Rexroth products?<\/a>\n\t\t\t\t\t<\/h2>\n\n\t\t\t\t\t<div id=\"elementor-tab-content-1656\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"6\" role=\"region\" aria-labelledby=\"elementor-tab-title-1656\"><p>Bosch Rexroth designs and manufactures a wide variety of high quality hydraulic components, available for multiple technologies:<\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\">Assembly, drive and electrical control technologies,<\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\">Gear technologies,<\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\">Linear motion technology,<\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\">Industrial hydraulics,<\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\">Mobile hydraulics,<\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\">Welding techniques,<\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\">Clamping systems.<\/li>\n<\/ul>\n<p>HP Hydraulique is a certified <a href=\"https:\/\/hphydraulique.com\/en\/h-p-hydraulique-receives-bosch-rexroth-certificate-of-excellence\/\" target=\"_blank\" rel=\"noopener\">AUTHORIZED DISTRIBUTOR OF THE BOSCH REXROTH BRAND<\/a> for the mobile and industrial hydraulic product line. We are therefore able to meet your needs for Bosch Rexroth components.<\/p>\n<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-toggle-item\">\n\t\t\t\t\t<h2 id=\"elementor-tab-title-1657\" class=\"elementor-tab-title\" data-tab=\"7\" role=\"button\" aria-controls=\"elementor-tab-content-1657\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon elementor-toggle-icon-right\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-closed\"><i class=\"fas fa-caret-right\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-opened\"><i class=\"elementor-toggle-icon-opened fas fa-caret-up\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-toggle-title\" tabindex=\"0\">What is the difference between an open and a closed hydraulic system?<\/a>\n\t\t\t\t\t<\/h2>\n\n\t\t\t\t\t<div id=\"elementor-tab-content-1657\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"7\" role=\"region\" aria-labelledby=\"elementor-tab-title-1657\"><p>An open system is one where the fluid flows from the pump through the valves and back to the tank. This means that the pump provides a continuous flow to the hydraulic system. In addition, an open circuit is a one-way circuit, which means that the fluid can only flow in one direction. <\/p>\n<p>On the other hand, in a closed-loop hydraulic system, the fluid from the piston pump flows directly to a motor and back to the pump without passing through the reservoir. The special feature of this type of system is its bi-directional operation. <\/p>\n<p>For more explanations, see our <a href=\"https:\/\/hphydraulique.com\/en\/what-are-the-differences-between-an-open-and-closed-hydraulic-system\/\" target=\"_blank\" rel=\"noopener\">ARTICLE ON THE DIFFERENCES BETWEEN AN OPEN AND CLOSED HYDRAULIC SYSTEM.<\/a><\/p>\n<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-toggle-item\">\n\t\t\t\t\t<h2 id=\"elementor-tab-title-1658\" class=\"elementor-tab-title\" data-tab=\"8\" role=\"button\" aria-controls=\"elementor-tab-content-1658\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon elementor-toggle-icon-right\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-closed\"><i class=\"fas fa-caret-right\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-opened\"><i class=\"elementor-toggle-icon-opened fas fa-caret-up\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-toggle-title\" tabindex=\"0\">What is a printed circuit?<\/a>\n\t\t\t\t\t<\/h2>\n\n\t\t\t\t\t<div id=\"elementor-tab-content-1658\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"8\" role=\"region\" aria-labelledby=\"elementor-tab-title-1658\"><p>A printed circuit, or Printed Circuit Board (PCB), is a plate which ensures the connection of a set of electronic components and is used in many everyday electronic devices:&nbsp;<\/p>\n<ul>\n<li>Industrial equipment<\/li>\n<li>Medical environment<\/li>\n<li>Aeronautical environment<\/li>\n<li>Automobiles<\/li>\n<li>Electronic devices<\/li>\n<li>Household appliances<\/li>\n<li>Lighting\n<\/li>\n<\/ul>\n<p>To learn more, see our <a href=\"https:\/\/hphydraulique.com\/en\/definition-printed-circuit-electronic-pcb\/\" style=\"font-weight: normal;\">article on printed circuits (PCBs).<\/a><\/p>\n<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-toggle-item\">\n\t\t\t\t\t<h2 id=\"elementor-tab-title-1659\" class=\"elementor-tab-title\" data-tab=\"9\" role=\"button\" aria-controls=\"elementor-tab-content-1659\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon elementor-toggle-icon-right\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-closed\"><i class=\"fas fa-caret-right\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-opened\"><i class=\"elementor-toggle-icon-opened fas fa-caret-up\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-toggle-title\" tabindex=\"0\">What is a high-precision, portable 3D scanner (short-range)?<\/a>\n\t\t\t\t\t<\/h2>\n\n\t\t\t\t\t<div id=\"elementor-tab-content-1659\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"9\" role=\"region\" aria-labelledby=\"elementor-tab-title-1659\"><p>This type of scanner is a device that can be taken almost anywhere to create a highly accurate 3D scan of a part. The device emits a light source\u2014projecting laser crosses onto the object being scanned\u2014which enables the creation of a mesh that precisely represents the object\u2019s surfaces. It can be used to scan parts of various sizes\u2014from very small to very large\u2014whenever high precision is required. This 3D scanner can be used to accurately replicate parts that are difficult to measure, or to inspect objects that must meet specific precision standards.<\/p>\n<p>To learn more, check out our article on <a href=\"https:\/\/hphydraulique.com\/en\/what-is-digitalization-3d\/\">3D scanning.<\/a><\/p>\n<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-toggle-item\">\n\t\t\t\t\t<h2 id=\"elementor-tab-title-16510\" class=\"elementor-tab-title\" data-tab=\"10\" role=\"button\" aria-controls=\"elementor-tab-content-16510\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon elementor-toggle-icon-right\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-closed\"><i class=\"fas fa-caret-right\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-opened\"><i class=\"elementor-toggle-icon-opened fas fa-caret-up\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-toggle-title\" tabindex=\"0\">What is a long-range laser (or environmental) 3D scanner?<\/a>\n\t\t\t\t\t<\/h2>\n\n\t\t\t\t\t<div id=\"elementor-tab-content-16510\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"10\" role=\"region\" aria-labelledby=\"elementor-tab-title-16510\"><p>This type of scanner is considered &#8220;long-range&#8221; because it enables large-scale scanning. The device operates by emitting laser pulses, which generate a point cloud with each scan. By combining all these point clouds, the volume of the environment can be reconstructed without any physical contact. This type of scanner is used for very large objects, as well as for entire environments\u2014such as a room, a section of a factory, an outdoor courtyard, etc.<\/p>\n<p>Check out our article on the different types of <a href=\"https:\/\/hphydraulique.com\/en\/what-is-digitalization-3d\/\" target=\"_blank\" rel=\"noopener\">3D scanners.<\/a><\/p>\n<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<script type=\"application\/ld+json\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"How to prevent damage to a contamined hydraulic system?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"<p>Several measuring devices can prevent damage to a hydraulic system:<\\\/p>\\n<ul>\\n<li style=\\\"font-weight: 400;\\\" aria-level=\\\"1\\\">a filter maintenance indicator<\\\/li>\\n<li style=\\\"font-weight: 400;\\\" aria-level=\\\"1\\\">a water content measuring device<\\\/li>\\n<li style=\\\"font-weight: 400;\\\" aria-level=\\\"1\\\">a particle counter<\\\/li>\\n<\\\/ul>\\n<p><span style=\\\"font-weight: 400;\\\">See our article on<\\\/span> <span style=\\\"font-weight: 400;\\\"><a href=\\\"https:\\\/\\\/hphydraulique.com\\\/en\\\/contamination-of-hydraulic-circuits\\\/\\\" target=\\\"_blank\\\" rel=\\\"noopener\\\">HYDRAULIC CIRCUIT CONTAMINATIONS<\\\/a><\\\/span> <span style=\\\"font-weight: 400;\\\">to learn more.<\\\/span><\\\/p>\\n\"}},{\"@type\":\"Question\",\"name\":\"How to avoid particle contamination of a hydraulic system when filling oil?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"<p><span style=\\\"font-weight: 400;\\\"><span style=\\\"font-weight: 400;\\\">For manual filling, make sure the oil cap is clean and that you use a dry funnel (free of water or other fluids) and free of dust or particles.<span style=\\\"font-weight: 400;\\\"><span style=\\\"font-weight: 400;\\\"><span style=\\\"font-weight: 400;\\\"><\\\/span>The use of a filter pump to transfer oil from the gallon to the tank is a useful method of preventing contamination and ensuring the protection of the hydraulic system.<\\\/span><\\\/span><\\\/span><\\\/span><\\\/p>\\n<p><span style=\\\"font-weight: 400;\\\"><span style=\\\"font-weight: 400;\\\"><span style=\\\"font-weight: 400;\\\"><\\\/span><\\\/span>See our article on <a href=\\\"https:\\\/\\\/hphydraulique.com\\\/en\\\/contamination-of-hydraulic-circuits\\\/\\\" target=\\\"_blank\\\" rel=\\\"noopener\\\">HYDRAULIC CIRCUIT CONTAMINATIONS<\\\/a>to learn more<\\\/span><\\\/p>\\n\"}},{\"@type\":\"Question\",\"name\":\"How to identific hydraulic contamination?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"<p>Tests are used to determine whether or not contaminants are present. This is most often done by analyzing the viscosity, water content, or solid content.<\\\/p>\\n<p><span style=\\\"font-weight: 400;\\\">See our article on<\\\/span><a href=\\\"https:\\\/\\\/hphydraulique.com\\\/en\\\/contamination-of-hydraulic-circuits\\\/\\\" target=\\\"_blank\\\" rel=\\\"noopener\\\"><span style=\\\"font-weight: 400;\\\">HYDRAULIC CIRCUIT CONTAMINATIONS<\\\/span><\\\/a> <span style=\\\"font-weight: 400;\\\">to learn more.<\\\/span><\\\/p>\\n\"}},{\"@type\":\"Question\",\"name\":\"How to clean a contaminated hydraulic system?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"<p>To clean a contaminated hydraulic system, there are equipments which allow a depollution of the fluid in a hydraulic circuit.<\\\/p>\\n<ul>\\n<li style=\\\"font-weight: 400;\\\" aria-level=\\\"1\\\">Mobile filtration units can be connected to the circuit, allowing the fluid in the circuit to be depolluted<\\\/li>\\n<li style=\\\"font-weight: 400;\\\" aria-level=\\\"1\\\">The installation of fluid purifiers is a more complete system to clean up a fluid contaminated by particles, water or gases.<\\\/li>\\n<li style=\\\"font-weight: 400;\\\" aria-level=\\\"1\\\">In some major cases, a complete emptying followed by a cleaning is necessary.<\\\/li>\\n<\\\/ul>\\n<p><span style=\\\"font-weight: 400;\\\">See our article on <\\\/span><span style=\\\"font-weight: 400;\\\"><a href=\\\"https:\\\/\\\/hphydraulique.com\\\/en\\\/contamination-of-hydraulic-circuits\\\/\\\" target=\\\"_blank\\\" rel=\\\"noopener\\\">HYDRAULIC CIRCUIT CONTAMINATIONS <\\\/a><\\\/span><span style=\\\"font-weight: 400;\\\">to learn more.<\\\/span><\\\/p>\\n\"}},{\"@type\":\"Question\",\"name\":\"What are the different types of hydraulic fittings?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"<p>There is a multitude of hydraulic fittings. They are differentiated according to several criteria:<\\\/p>\\n<ul>\\n<li style=\\\"font-weight: 400;\\\" aria-level=\\\"1\\\">Male or female connections,<\\\/li>\\n<li style=\\\"font-weight: 400;\\\" aria-level=\\\"1\\\">Straight or angled fittings,<\\\/li>\\n<li style=\\\"font-weight: 400;\\\" aria-level=\\\"1\\\">Rigid or swivel fittings.<\\\/li>\\n<\\\/ul>\\n<p>Hydraulic fittings are available in many sizes and depending on your needs, fittings should be selected according to the type of hydraulic hose (braided, spiral, high pressure, thermoplastic or other). For more information, see the <span style=\\\"font-weight: 400;\\\">TYPES OF FITTINGS AVAILABLE<\\\/span> from HP Hydraulics.<\\\/p><\\\/p>\\n\"}},{\"@type\":\"Question\",\"name\":\"What are Bosch Rexroth products?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"<p>Bosch Rexroth designs and manufactures a wide variety of high quality hydraulic components, available for multiple technologies:<\\\/p>\\n<ul>\\n<li style=\\\"font-weight: 400;\\\" aria-level=\\\"1\\\">Assembly, drive and electrical control technologies,<\\\/li>\\n<li style=\\\"font-weight: 400;\\\" aria-level=\\\"1\\\">Gear technologies,<\\\/li>\\n<li style=\\\"font-weight: 400;\\\" aria-level=\\\"1\\\">Linear motion technology,<\\\/li>\\n<li style=\\\"font-weight: 400;\\\" aria-level=\\\"1\\\">Industrial hydraulics,<\\\/li>\\n<li style=\\\"font-weight: 400;\\\" aria-level=\\\"1\\\">Mobile hydraulics,<\\\/li>\\n<li style=\\\"font-weight: 400;\\\" aria-level=\\\"1\\\">Welding techniques,<\\\/li>\\n<li style=\\\"font-weight: 400;\\\" aria-level=\\\"1\\\">Clamping systems.<\\\/li>\\n<\\\/ul>\\n<p>HP Hydraulique is a certified <a href=\\\"https:\\\/\\\/hphydraulique.com\\\/en\\\/h-p-hydraulique-receives-bosch-rexroth-certificate-of-excellence\\\/\\\" target=\\\"_blank\\\" rel=\\\"noopener\\\">AUTHORIZED DISTRIBUTOR OF THE BOSCH REXROTH BRAND<\\\/a> for the mobile and industrial hydraulic product line. We are therefore able to meet your needs for Bosch Rexroth components.<\\\/p>\\n\"}},{\"@type\":\"Question\",\"name\":\"What is the difference between an open and a closed hydraulic system?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"<p>An open system is one where the fluid flows from the pump through the valves and back to the tank. This means that the pump provides a continuous flow to the hydraulic system. In addition, an open circuit is a one-way circuit, which means that the fluid can only flow in one direction. <\\\/p>\\n<p>On the other hand, in a closed-loop hydraulic system, the fluid from the piston pump flows directly to a motor and back to the pump without passing through the reservoir. The special feature of this type of system is its bi-directional operation. <\\\/p>\\n<p>For more explanations, see our <a href=\\\"https:\\\/\\\/hphydraulique.com\\\/en\\\/what-are-the-differences-between-an-open-and-closed-hydraulic-system\\\/\\\" target=\\\"_blank\\\" rel=\\\"noopener\\\">ARTICLE ON THE DIFFERENCES BETWEEN AN OPEN AND CLOSED HYDRAULIC SYSTEM.<\\\/a><\\\/p>\\n\"}},{\"@type\":\"Question\",\"name\":\"What is a printed circuit?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"<p>A printed circuit, or Printed Circuit Board (PCB), is a plate which ensures the connection of a set of electronic components and is used in many everyday electronic devices:&nbsp;<\\\/p>\\n<ul>\\n<li>Industrial equipment<\\\/li>\\n<li>Medical environment<\\\/li>\\n<li>Aeronautical environment<\\\/li>\\n<li>Automobiles<\\\/li>\\n<li>Electronic devices<\\\/li>\\n<li>Household appliances<\\\/li>\\n<li>Lighting\\n<\\\/li>\\n<\\\/ul>\\n<p>To learn more, see our <a href=\\\"https:\\\/\\\/hphydraulique.com\\\/en\\\/definition-printed-circuit-electronic-pcb\\\/\\\" style=\\\"font-weight: normal;\\\">article on printed circuits (PCBs).<\\\/a><\\\/p>\\n\"}},{\"@type\":\"Question\",\"name\":\"What is a high-precision, portable 3D scanner (short-range)?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"<p>This type of scanner is a device that can be taken almost anywhere to create a highly accurate 3D scan of a part. The device emits a light source\\u2014projecting laser crosses onto the object being scanned\\u2014which enables the creation of a mesh that precisely represents the object\\u2019s surfaces. It can be used to scan parts of various sizes\\u2014from very small to very large\\u2014whenever high precision is required. This 3D scanner can be used to accurately replicate parts that are difficult to measure, or to inspect objects that must meet specific precision standards.<\\\/p>\\n<p>To learn more, check out our article on <a href=\\\"https:\\\/\\\/hphydraulique.com\\\/en\\\/what-is-digitalization-3d\\\/\\\">3D scanning.<\\\/a><\\\/p>\\n\"}},{\"@type\":\"Question\",\"name\":\"What is a long-range laser (or environmental) 3D scanner?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"<p>This type of scanner is considered &#8220;long-range&#8221; because it enables large-scale scanning. The device operates by emitting laser pulses, which generate a point cloud with each scan. By combining all these point clouds, the volume of the environment can be reconstructed without any physical contact. This type of scanner is used for very large objects, as well as for entire environments\\u2014such as a room, a section of a factory, an outdoor courtyard, etc.<\\\/p>\\n<p>Check out our article on the different types of <a href=\\\"https:\\\/\\\/hphydraulique.com\\\/en\\\/what-is-digitalization-3d\\\/\\\" target=\\\"_blank\\\" rel=\\\"noopener\\\">3D scanners.<\\\/a><\\\/p>\\n\"}}]}<\/script>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>FREQUENTLY ASKED QUESTIONS (FAQ) How can we help you? Here you will find answers to the most frequently asked questions from our customers about hydraulic, pneumatic and mobile electronics systems. If the information you are looking for is not available, please do not hesitate to contact us. A member of our team will be happy [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-11938","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>FAQ (Frequently asked questions) | HP Hydraulique<\/title>\n<meta name=\"description\" content=\"Questions about hydraulic and pneumatic circuits or about the services offered by HP Hydraulique? 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