VAG HYsec Hydraulic Brake and Lift Unit for VAG EKN® Butterfly Valves

PN: 10/16/25 - DN: 300...1200

Productgroup: Butterfly Valves

Medium: Water,  Sea water

The VAG HYsec hydraulic brake and lift unit meets all the requirements of safe and reliable operation. Combined with a VAG EKN® Butterfly Valve or a VAG RIKO® Plunger Valve, it serves as a quick-closing safety valve at turbine inlets and in pumping stations, as a pipe-burst safety device with hydro-mechanical activation or as a quick-opening valve in the turbine bypass.

  • Quick-closing valve with hydraulic brake and lift unit
  • Hydraulic cylinder for external oil supply for a pressure between 80 and 200 bar
  • Lever and weight with double bearing, angular joint bearing on one side and with bearing ring made of PTFE gliding sheet on the other side. This prevents the transmission of drop weight loads to the valve bearing.
  • Modular design of the drop weight allows adaptation to the operation conditions
  • Two-piece drop-weight lever
  • Two limit switches to indicate the open and closed positions, protection class IP 65
  • Two-step hydraulic cylinder and adjustable limit stop for the closed position
  • Compact design consisting of the valve plus mounted actuator
  • Opening and closing time depending on the external oil supply
  • Console and lever: SJ235
  • Drop weight: Cast iron EN-JL- 1040 (GG-25)
  • Bearing pins, bolts and coupling: Stainless steel 1.4021
  • Lever bearing: Stainless steel 1.4305 or rather zinc-free bronze and PTFE
  • Bracket, lever: Epoxy primer and top coating
  • Drop weight: Epoxy coating
Technical datasheet
VAG HYsec Hydraulic Brake and Lift Unit
Assembly and operating instruction
Product information
Tender text
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Carl-Reuther-Str. 1
68305 Mannheim
Phone: +49 (621) 749 0
Fax: +49 (621) 749 2156

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