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Load Control Valves CINDY

 


Description

Load control valves of this type prevent a hydraulic actuator from running ahead of, or "over-running", the available oil supply. They simultaneously act as a load-holding-, safety- and pipe-rupture valve. Leak-free load control valves are especially suitable for high pressure applications up to 420 bar with a safety factor of 3.

Advantages

  •    -  The three functions: load control valve, safety valve and pipe-rupture protection are all integrated in one assembly
  •    -  Load pressure acts in the closing direction; valve closes even with broken spring
  •    -  Leak-free valve seats; heat-treated, ground and lapped
  •    -  More reliable operation over the whole pressure and flow range
  •    -  Very good reproducibility
  •    -  Special oscillation damping
  •    -  Model with automatic overload compensation
  •    -  Valve opening is independent of load pressure


Technical Data

Type Picture Nominal size Volume flow rate l/min Operating pressure bar Secondary pressure, max. bar Mounting Port size Data Sheet
Cindy 12 P 12 150 420 120…420 Bar Manifold A - Ø 13 mm
B - Ø 13 mm
T - Ø 13 mm
CINDY-12-P_300-P-9050097
Cindy 12 S 12 150 420 120…420 Bar Flange A - G ½“
B - SAE ½“
T - G ⅜“
CINDY-12-S_300-P-9050106
Cindy 16 P 16 250 420 120…420 Bar Manifold A - Ø 16 mm
B - Ø 16 mm
T - Ø 13 mm
 CINDY-16-P_300-P-9050100
Cindy 16 S 16 250 420 120…420 Bar Flange A - SAE ¾“
B - SAE ¾“
T - G ¾“
 CINDY-16-S_300-P-9050107
Cindy 20 P 20 350 420 120…420 Bar Manifold A - Ø 19 mm
B - Ø 19 mm
T - Ø 13 mm
 CINDY-20-P_300-P-9050104
Cindy 20 S 20 350 420 120…420 Bar Flange A - SAE ¾“
B - SAE ¾“
T - G ¾“
 CINDY-20-S_300-P-9050108
Cindy 25 P 25 500 420 120…420 Bar Manifold A - Ø 27 mm
B - Ø 30.5 mm
T - Ø 18 mm
 CINDY-25-P_300-P-9050105
Cindy 25 S 25 500 420 120…420 Bar Flange A - SAE 1¼“
B - SAE 1¼“
T - G ¾“
 CINDY-25-S_300-P-9050109

* Higher volume flow rates, please consult BUCHER

 

Models

Type "P" - A variant Type "P" - L variant  
 
     
Type "S" - A variant Type "S" - A variant  
 
     
Type "S" - Neutral position Type "P" - Lowering Type "P" - Lifting

  •    -  Body-mounted valve with threaded or SAE flanged ports
  •    -  Multi-block valve
  •    -  Cartridge valve
  •    -  Motor valve for direct motor-mounting
  •    -  Body-mounted valve with integral secondary pressure relief valve
  •    -  With proportional control


Applications

  •    -  Mobile, port, and ship cranes
  •    -  Aerial work platforms
  •    -  Fire-fighting turntable ladders
  •    -  Drilling rigs
  •    -  Underground and tunnel boring machines
  •    -  Hydraulic presses
  •    -  Winches