Hydraulic brake-and-lift unit with internal oil supply
for quick-closing valves 
e.g. for the VAG EKN® Butterfly Valve or VAG RIKO® Plunger Valve

- include valve text here of the desired VAG EKN® Butterfly Valve or VAG RIKO® Plunger Valve -

VAG HYsec PRO hydraulic brake-and-lift unit and VAG EKN® Butterfly Valve/VAG RIKO® Plunger Valve or equivalent	
Hydraulic brake-and-lift unit consisting of 
-	lever with weight
-	hydraulic cylinder
-	hydraulic aggregate with control unit

Weight lever with double bearing
- flexible split bronze bearing on one side,
- and bronze bearing with PTFE insert on the other side,
To prevents cold welding of the bearing with the shaft during closing
Modular design of the drop weights allows individual adaptation to the operation conditions;
two-piece drop-weight lever;

two step hydraulic cylinder with control unit:
- directly screwed onto the cylinder bottom without connection pipes,
- integrated stop-cock for manual release
- activation via solenoid valve and/or hydromechanical release (e.g. for pipe-burst safety device) 
- closing times adjustable with capacity control valve must be independent of viscosity and pressure
- adjustable internal damping unit,
- integrated non-return valve,
- connection hoses unpressurised in operating position,

Integrated hydraulic unit with hermetically closed oil circuit:
- without air filter and dehumidifier,
- radial piston pump with redundant pump elements,
- submerged type pump motor 
- hand pump and filter element integrated in the pump housing,

Three limit switches: for open and closed position as well as for keeping the valve open automatically;
Adjustable limit stop for the closed position;

Compact design consisting of the valve plus mounted actuator, no pipework required on site; 

Control unit made of stainless steel grade 1.4305;
Bracket and lever made of SJ235;
Drop weight made of made of SJ235;
Bearing pins and bolts made of stainless steel grade 1.4021;
Lever bearing made of stainless steel grade 1.4305 or zinc-free bronze and PTFE;
Terminal box made of steel plate

Corrosion protection
Bracket and lever: Epoxy primer and top coat; colour: RAL 9007 grey 
Drop weight: Epoxy coating, colour: RAL 5005 blue

>> Please specify the operation data in the requirement form below 

Manufacturer:	VAG GmbH
		Carl-Reuther-Str. 1	
		68305 Mannheim
		Germany
		www.vag-group.com

Varieties:
- Optional arrangement of actuator and drop direction
- Control cabinet for on-site control
- Oil temperature switch
- Oil level switch
- External activation (pipe burst safety device / float switch)
- With earthquake sensor (P-wave release)
- Further accessories and varieties upon request 

Quantity ........    €/Piece ........    €/Item .......

Requirements for the brake-and-lift unit VAG HYsec
Project.....................................................

1. Valve

 Butterfly valve		 Plunger valve

Nominal diameter			DN      		Fluid      

Nominal pressure			PN      		Operating pressure       bar

Flow rate			normal	      m³/h	max.       m³/h

Installation in the pipeline		 horizontal	   vertical	 limited dimensions (see sketch)

2. Arrangement of the actuator

Standard

  in flow direction on the right				                 in flow direction on the left

 

 

weight drops
in 
flow direction

weight drops
against
flow direction

weight drops
in 
flow direction

weight drops
 against
 flow direction

3. Function 

 Quick closing valve			
 Quick opening valve 			
 Pipe burst safety device		
 Pump protection valve 	

4. Hydraulic brake-and-lift cylinder
Two-step piston damper with separately adjustable steps

Closing time 	1st step      sec.
		2nd step      sec.
		 Manual activation required

Opening time:	      sec.

Motor:		Voltage		 400 V/50 Hz as a standard

		Special voltage	       V       Hz

		Degree of protection  IP 67 as a standard
					   IP68 for suboil motor

 Control cabinet	or	 Terminal box (standard)

		 Mounted directly to the valve (standard)
		 For mounting on a wall (cable and mounting material to be provided by the client)

Solenoid valve:	 Voltage 24 VDC as a standard
		 Special voltage       V

Release of drop weight:	 in case of power failure	
				 if voltage is applied
				 Earthquake protection

Activated in the event	 Pitot tube (assembly)			Flow rate releasing m³/s
of a pipe burst:			 Pendulum					pipe burst safety device: 
				 Flow meter (4 -20 mA)			     

Limit switch:		 EUCHNER, 3 stages (open, closed and 90% open) (standard)

			 Special switch      

Other:			 Oil temperature switch
			 Oil level switch
			 Light in switching cabinet
			      	

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