{"id":102,"count":9,"description":"

Automatic and semi-automatic air-hydraulic pumps with various types of drive and flow rates from 0.1 to 0.8 l \/ min<\/h2>\r\nOur HP series air hydraulic pumps are designed to use hydraulic oils or glycols for the operation of single acting spring return cylinders. High oil pressures up to 1,000 bar, large flow rates (l \/ min) and extremely compact dimensions are the hallmark of the series.\r\n

Air-hydraulic pumps with manual lever operation HP Series<\/h3>\r\n
    \r\n \t
  1. HP<\/strong><\/a> Single acting, pedal operated, oil flow rates from 2.1 to 0.1 l \/ min, oil pressures from 100 to 1,000bar, tank capacities from 1.4L to 4L<\/li>\r\n \t
  2. HP-AP<\/strong><\/a> Single acting, stall \/ restart continuous cycle operation, pneumatic RC valve for release, oil flow rates from 2.1 to 0.1 l \/ min, oil pressures from 100 to 1,000bar, tank capacities from 1.4L to 4L<\/li>\r\n \t
  3. HP-RC<\/strong><\/a> Single acting, double pneumatic RC valve for advance \/ release, oil flow rates from 2.1 to 0.1 l \/ min, oil pressures from 100 to 1,000bar, tank capacities from 1.4L to 4L<\/li>\r\n \t
  4. HP-REMOTE<\/strong><\/a> Single acting, pneumatic remote control 2 push \/ release buttons, oil flow rates from 2.1 to 0.1 l \/ min, oil pressures from 100 to 1,000bar, tank capacities from 1.4L to 4L<\/li>\r\n \t
  5. HP-LEVER<\/strong><\/a> Single acting, manual lever operation, oil flow rates from 2.1 to 0.1 l \/ min, oil pressures from 100 to 1,000bar, tank capacities from 1.4L to 4L<\/li>\r\n<\/ol>\r\n[gallery ids=\"2430,2429,2428,2439,2442\"]\r\n

    Features HP Series Air Hydraulic Pumps<\/h3>\r\n
      \r\n \t
    1. They can also operate double-acting cylinders with 4-way distributor valve (optional).<\/span><\/li>\r\n \t
    2. Orienting oil port for easy hydraulic connections.<\/span><\/li>\r\n \t
    3. Connectable to the normal 5\/8 pneumatic network (max 10 bar)<\/span><\/li>\r\n \t
    4. Built-in differential type release valve, hydraulically balanced to eliminate opening shocks and allow a fast and controlled oil return<\/span><\/li>\r\n \t
    5. Replaceable internal air filter, as well as an externally adjustable relief valve for the protection of the circuit components.<\/span><\/li>\r\n \t
    6. HP version with 3-position pedal for advance \/ hold \/ release.<\/span><\/li>\r\n \t
    7. HP-RC version for pneumatic or remote operation (HP-Remote) via manual button control.<\/span><\/li>\r\n \t
    8. HP-Lever version for convenient manual lever operation (ideal for crimpers and bench work).<\/span><\/li>\r\n \t
    9. HP-AP version for automatic in-line drives (ideal for locking systems, automati<\/span><\/li>\r\n<\/ol>\r\n

      HP Series Air Hydraulic Pumps: additional benefits<\/h3>\r\n
        \r\n \t
      1. Inlet air filter and internal oil filter to protect the pump and the system parts<\/li>\r\n \t
      2. Externally adjustable relief valve<\/li>\r\n \t
      3. Versatile install in both horizontal and vertical position<\/li>\r\n \t
      4. Low energy costs<\/li>\r\n<\/ol>\r\n

        Hydraulic oil flow (l\/min)<\/h3>\r\nThe hydraulic pressure of the pump depends mainly on the reduction ratio, the calibration pressure of the relief valve and the pressure of the pneumatic inlet air.\r\nThe hydraulic pressure increases or decreases proportionally to the increase or decrease of the inlet air pressure.\r\nTherefore the flow rate (l \/ min) increases or decreases proportionally to the increase or decrease of the hydraulic pressure.\r\nThe flow diagrams show the performance trend in combination with the working pressure at several inlet air pressures (ref. to the technical data sheets).\r\n

        Pneumatic air flow\u00a0(l\/min)<\/h3>\r\nBELL pumps of the HP Series work in an air inlet pressure range from 3bar to max 10bar.\r\nThe average air consumption is 340 l\/min.\r\nAn air lubricator is not required, however it is highly recommended to have a condensate filter to dry the inlet air.\r\nThe diagrams show the air consumption related to the working pressures and the flow rates (ref. to the technical data sheets).\r\n

        Stall\/restart pressure<\/h3>\r\nAll BELL pumps of the HP series can work at a constant hydraulic pressure by adjusting the air inlet pressure (stall).\r\nThe air inlet pressure has to be set-up so that the pump stalls at the required output pressure value (the calibration of the relief valve must exceed the operating pressure value so as not to compensate).\r\nWhenever the hydraulic pressure decreases (circuit leaks \u2013 pressure drop), the pump compensates automatically and restores the set value (the air pneumatic network must be always connected to the pump).\r\nThe stall\/restart diagrams show the pressure values in different conditions.\r\nIt is recommended to check the settings by restarting the pump from time to time\r\nA slight loss of air during operation in these conditions is completely normal.\r\n\r\nAll BELL products are designed and manufactured within BELL SRL in via F. De Pisis, 5 - 42124 Reggio Emilia (RE) - Italy, according to the Quality Standards that distinguish the MADE IN ITALY from the Rest of the World.","link":"https:\/\/bell.it\/en\/categoria-prodotto\/pumps-power-units\/air-compressed-hydraulic-pumps\/air-hydraulic-pumps-manual-automatic\/","name":"Air-hydraulic pumps manual and automatic HP series","slug":"air-hydraulic-pumps-manual-automatic","taxonomy":"product_cat","parent":69,"meta":[],"menu_order":0,"acf":[],"yoast_head":"\nAir-hydraulic pumps manual and automatic Hp Series | Bell<\/title>\n<meta name=\"description\" content=\"Bell manufactures the air-hydraulic pumps of the HP Series for many applications. Flow rates from 0.1 to 8.5 l\/min. 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