Dual overcentervalves flangeable


The overcenter valves are employed to control the stop and the motion of one direction of an actuator (single overcenter valves) or both the directions (dual overcenter valves).

Functions:

- load lowering control: the lowering of the load is possible only if there is a pilot pressure from the other line; this operation ensures the oil supply of the cylinder preventing cavitation problems;

- containing of the pressure at the setting value, pressure relief for any pressure peaks caused by shocks or overloads; - arrest of the flow (and of the load) when the pump is not working or the directional valve is in neutral position;

- free flow for load lifting, with reduced pressure drops;

They consist of a body where are placed:

- check valve: it allows the flow in only one direction;

- pilot piston: it permits to control the gradual opening of the relief valve;

- relief valve: it permits to limit the maximum pressure in the actuator, it withholds the load and controls its lowering during the opening of the valve by the pilot signal.

CODE

L/min

Description

Max press.

PDF

Body material

Conn.

Pilot

Click to enlarge image

B070416.01.00

B070416.02.00

B070416.03.00


  

80lpm

Dual overcenter valve 2 ports flangeable

Aluminum


  

350 Bar


  

G1/2"

4.84:1

6.83:1

9.5:1


  

B070316.01.00

B070316.02.00



  

45lpm

Dual overcenter valve 2 ports flangeable

Aluminum


  

350 Bar


  

G3/8"

4.84:1

6.83:1


  

B076016.01.00

40lpm

Dual overcenter valve 4 ports flangeable

Aluminum


  

350 Bar


  

Flangeable

3.6:1


  

A070481.61.00

90lpm

Dual overcenter valve 2 ports flangeable

Zinc plated steel


  

500 Bar


  

G1/2"

4.25:1


  

A070371.01.00

A070371.02.00

A070371.03.00

A070471.01.00

A070471.02.00

A070471.03.00

45lpm



60lpm

Dual overcenter valve 1 port flangeable

Zinc plated steel


  

500 Bar


  

G3/8"



G1/2"

2.7:1

4.3:1

8.8:1

2.7:1

4.3:1

8.8:1

A070271.22.00

  

30lpm

Dual overcenter valve 1 port flangeable

Zinc plated steel


  

500 Bar


  

G1/4"

4.1:1

A070381.01.00

A070381.02.00

A070381.03.00

A070481.01.00

A070481.02.00

A070481.03.00

45lpm



60lpm

Dual overcenter valve 2 ports flangeable

Zinc plated steel


  

500 Bar


  

G3/8"



G1/2"

2.7:1

4.3:1

8.8:1

2.7:1

4.3:1

8.8:1

A070281.22.00

  

30lpm

Dual overcenter valve 2 ports flangeable

Zinc plated steel


  

500 Bar


  

G1/4"

4.1:1

A072381.01.00

A072381.02.00

A072381.03.00

  

45lpm

Dual overcenter valve NG6

Zinc plated steel


  

350 Bar


  

NG6

CETOP03

2.7:1

4.3:1

8.8:1

A070376.01.00

A070376.02.00

A070376.03.00

A070476.01.00

A070476.02.00

A070476.03.00

45lpm



60lpm

Dual overcenter valve 1 port flangeable back pressure compensated

Zinc plated steel


  

500 Bar


  

G3/8"



G1/2"

2.7:1

4.3:1

8.8:1

2.7:1

4.3:1

8.8:1

A070386.01.00

A070386.02.00

A070386.03.00

A070486.01.00

A070486.02.00

A070486.03.00

45lpm



60lpm

Dual overcenter valve 2 ports flangeable back pressure compensated

Zinc plated steel


  

500 Bar


  

G3/8"



G1/2"

2.7:1

4.3:1

8.8:1

2.7:1

4.3:1

8.8:1

A070681.01.00

A070681.02.00

  

150lpm

Dual overcenter valve 2 ports flangeable

Zinc plated steel


  

500 Bar


  

G3/4"

4:1

8:1

A070686.01.00

A070686.02.00

  

150lpm

Dual overcenter valve 2 ports flangeable back pressure compensated

Zinc plated steel


  

500 Bar


  

G3/4"

4:1

8:1

A070281.24.00

  

20lpm

Dual overcenter valve 2 ports flangeable

Zinc plated steel


  

500 Bar


  

G1/4"

4.1:1

B070281.06.00

  

30lpm

Dual overcenter valve 2 ports flangeable with extra check valve.

Aluminum


  

400 Bar


  

G1/4"

4.1:1