Vbso-De-10g-G38g12 Crane Load Holding Valve

• After-sales Service: Timely Response
• Warranty: One Year
• Type: Balance Valve
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: VBSO-DE-10G-G38
• Application: Pile Driver
• Certification: CE, ISO9001: 2000
• Condition: New
• Flow: 40L/Min
• Max Pressure: 35MPa
• Pilot Ratio: 1:4.25
• Transport Package: Wooden Box
• Specification: small
• Trademark: YIKDE
• Origin: China
• HS Code: 8481201090
• Production Capacity: 50000 Pieces/Year
• Package Size: 24.00cm * 7.00cm * 4.00cm
• Package Gross Weight: 1.860kg

Product Description

Dual overcentervalves

     Balancing valves are mainly used in hydraulic systems of construction machinery and other mechanical forms that are lowered by gravity. They have a hydraulic circuit that balances the return oil back pressure with the changing load to ensure that the load can be reliably stopped at a certain position and to control the balance of movement when the load is lowered, preventing the load from descending at an excessive speed and causing damage to the structural parts and hydraulic parts and pipelines.


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.