Source of water hydraulics

Roll cooling systems

Taking into account your individual requirements and specifications we design and manufacture complete systems comprising spray valves with integrated spray nozzle, spray bars and control cabinets incl. The major bus connections.

In the field of hot and cold rolling plants, the multi-zone cooling is used for the production of steel, aluminum and non-ferrous metal sheets. This 2/2-way spray valves with the division 13, 26 or 52mm are arranged over the entire roll width to selectively cool the rolls in certain areas and thus to regulate the sheet thickness in a narrow tolerance range.

Fast switching, reliable spray valves are necessary for this process, as they are custom designed, manufactured and sold by Evertz HYDROTECHNIK.

The valves can be piloted both by means of its own medium as well as foreign media.

Standard operating conditions:

  • Media: emulsion, rolling oil (kerosene)
  • Pressures: Standard 0 to 10 bar (max up to 16 bar)
  • Nominal widths spray valves: DN5, DN8, DN12, DN16
  • Temperatures: max. Operating temperature 0 to + 70 ° C (Hot Edge and + 100 ° C.); Max. Ambient temperature: 0 to + 60 ° C

 

If you have a request outside of our standards, then we will develop a solution for you!

Various components for multi-zone cooling:

  • Spray valves

    for every application, also for aggressive, heavily soiled media:

     

    • Spray valve DN 5 / DN 8 / DN 12 / DN16 PN16
    • Membrane spray valve DN 12 / DN16 PN16
    • Spray valve 2: 1 DN8 / DN16 PN16
    • Smallest division: DN5 - 13mm, DN8 / DN12 - 25mm, DN12 / DN16 - 52mm
    • Proportional cooling valve DN25 PN16 , 24VDC 25W
    • Smallest division: DN25 - 52mm
    • Cooling Volume: min. 12 l / min - max. 180 l / min
  • Direct operated spray valve system

    EHSd Electrohydraulic System directly

    EPSd Electropneumatic System directly

     

    • System Directly fully enclosed system on beam
    • distinctive connector IP68 with special sheathing (also available in stainless steel)
    • Compact spray, flexible design, can therefore be used for different installation spaces
    • different angles of inclination and nozzles according to customer requirements
    • compact cabinet with fieldbus (according to customer requirements)
    • extremely short switching times of the spray valves as pilot valves mounted directly on the beams
    • Nozzles hidden in the valve cover integrated, however, individually replaceable
  • Remote-controlled spray valve system

    EHSr Electrohydraulic System remotely

    EPSr Electropneumatic System remotely

     

    • compact Sprühbalkenkonstruktion (according to customer requirements)
    • distinctive, fully enclosed pneumatic connectors sheathed
    • flexible multi-control line with a unique multi-coupling, with stainless steel protection tube
    • Multiple control lines made of special, extremely heat-resistant material
    • compact cabinet with fieldbus (according to customer requirements)
    • different angles of inclination and nozzles according to customer requirements
    • Nozzles hidden in the valve cover integrated, however, individually replaceable
  • Proportional controlled spray valve system

    • adjustable flow
    • Steuerung per SPS-System
    • Internal regulation of the flow rate
    • Feedback of the valve parameters
    • Complete system with spray bar, proportional cooling valves, valve-control module, ...