{"id":1,"date":"2026-04-22T14:05:48","date_gmt":"2026-04-22T06:05:48","guid":{"rendered":"http:\/\/47.90.212.164\/?p=1"},"modified":"2026-08-16T11:06:56","modified_gmt":"2026-08-16T03:06:56","slug":"key-10-points-of-hydraulic-power-unit-design","status":"publish","type":"post","link":"https:\/\/www.wmdtech.cn\/index.php\/2026\/04\/22\/key-10-points-of-hydraulic-power-unit-design\/","title":{"rendered":"Key 10\u00a0Points of Hydraulic Power Unit\u00a0(HPU)\u00a0Design"},"content":{"rendered":"\n

1. Basic Parameter Determination<\/strong><\/p>\n\n\n\n

\u00a0– Clarify the working pressure, flow rate, and driving power required by the system to avoid insufficient power or energy waste.<\/p>\n\n\n\n

– Determine the working medium (hydraulic oil type, viscosity grade) according to ambient temperature, load characteristics, and service life.<\/p>\n\n\n\n

– Define the cycle mode: continuous operation, intermittent operation, or high-frequency start-stop, to match the heat dissipation and component durability design.<\/p>\n\n\n\n

\u00a02. Oil Tank<\/strong><\/p>\n\n\n\n

 – Reasonably calculate the effective volume of the oil tank, generally 3 to 5 times the system flow rate to ensure oil heat dissipation and bubble separation.<\/p>\n\n\n\n

– Set up oil suction and return partitions, liquid level gauges, oil temperature gauges, air breathers, and drain valves.<\/p>\n\n\n\n

– Use anti-rust and anti-corrosion materials, with smooth inner walls to reduce oil residue and pollution.<\/p>\n\n\n\n

\u00a03. Pump<\/strong><\/p>\n\n\n\n

 – Select the appropriate hydraulic pump: gear pump (low pressure, low cost), vane pump (medium pressure, low noise), piston pump (high pressure, high efficiency).<\/p>\n\n\n\n

– Match the driving motor with rated power, speed, insulation grade, and protection level (IP54\/IP65) based on working conditions.<\/p>\n\n\n\n

– Reserve installation space for shock absorbers to reduce vibration and noise transmission.<\/p>\n\n\n\n

\u00a04. Valve & Circuit Design<\/strong><\/p>\n\n\n\n

 – Configure control valves (directional, pressure, flow control valves) reasonably to meet speed, pressure, and direction regulation requirements.<\/p>\n\n\n\n

– Optimize the pipeline layout to reduce bending, avoid eddy current and pressure loss, and use high-pressure hoses and hard pipes matching the pressure level.<\/p>\n\n\n\n

– Add overload protection, pressure relief circuits, and check valves to prevent hydraulic shock and oil backflow.<\/p>\n\n\n\n

5. Cooling & Heating System<\/strong><\/p>\n\n\n\n

 – Design an air cooler or water cooler according to the calorific value to control the oil temperature within 30\u201355\u00b0C.<\/p>\n\n\n\n

– Equip an electric heater for low-temperature environments to ensure the viscosity of hydraulic oil is within the usable range.<\/p>\n\n\n\n

– Install temperature sensors and automatic temperature control switches.<\/p>\n\n\n\n

\u00a06. Filtration & Pollution Control<\/strong><\/p>\n\n\n\n

 – Install oil suction filters, pressure filters, and return filters to control oil contamination level (generally NAS 8\u201310).<\/p>\n\n\n\n

– Set up filter clogging alarm devices to remind maintenance and replacement.<\/p>\n\n\n\n

– Ensure the sealing performance of the entire system to prevent dust and moisture intrusion.<\/p>\n\n\n\n

\u00a07. Noise & Vibration Control<\/strong><\/p>\n\n\n\n

 – Adopt low-noise hydraulic pumps and motors, and install shock-absorbing pads and mufflers.<\/p>\n\n\n\n

– Optimize pipeline fixation to avoid resonance and reduce fluid noise caused by throttling and impact.<\/p>\n\n\n\n

8. Safety & Reliability Design<\/strong><\/p>\n\n\n\n

– Set up emergency stop buttons, pressure relief valves, and explosion-proof devices for high-risk working conditions.<\/p>\n\n\n\n

– Adopt redundant design for key components to improve system stability.<\/p>\n\n\n\n

– Reserve test ports for pressure, flow, and oil quality detection to facilitate maintenance.<\/p>\n\n\n\n

9. Installation & Maintenance Convenience<\/strong><\/p>\n\n\n\n

– Arrange components in a compact and reasonable layout for easy observation, disassembly, and replacement.<\/p>\n\n\n\n

– Reserve enough space for pipeline connection, filter replacement, and oil filling\/draining.<\/p>\n\n\n\n

– Match the installation size with the equipment base to ensure stability.<\/p>\n\n\n\n

10. Environmental & Application Adaptability<\/strong><\/p>\n\n\n\n

– Strengthen protection for outdoor, high-temperature, low-temperature, humid, or corrosive environments.<\/p>\n\n\n\n

– Comply with industry standards and safety regulations for special applications such as marine, mining, and mechanical equipment.<\/p>\n\n\n\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

1. Basic Parameter Determination \u00a0– Clarify the w […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/www.wmdtech.cn\/index.php\/wp-json\/wp\/v2\/posts\/1","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wmdtech.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.wmdtech.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.wmdtech.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.wmdtech.cn\/index.php\/wp-json\/wp\/v2\/comments?post=1"}],"version-history":[{"count":1,"href":"https:\/\/www.wmdtech.cn\/index.php\/wp-json\/wp\/v2\/posts\/1\/revisions"}],"predecessor-version":[{"id":251,"href":"https:\/\/www.wmdtech.cn\/index.php\/wp-json\/wp\/v2\/posts\/1\/revisions\/251"}],"wp:attachment":[{"href":"https:\/\/www.wmdtech.cn\/index.php\/wp-json\/wp\/v2\/media?parent=1"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.wmdtech.cn\/index.php\/wp-json\/wp\/v2\/categories?post=1"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.wmdtech.cn\/index.php\/wp-json\/wp\/v2\/tags?post=1"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}