Single Overcenter Control Valve Hydraulic Balance Valve for Crane
Single balance valves, also known as single acting check valves or pilot-operated check valves, are vital components in hydraulic systems that utilize single-acting hydraulic cylinders. These valves serve a crucial function by controlling the flow of hydraulic fluid during both the extension and retraction phases of the cylinder's operation.
During the extension phase, when pressurized fluid is supplied to one side of the cylinder to extend it, the single balance valve allows the flow of fluid from the pump into the cylinder while blocking any reverse flow. This ensures that pressure is maintained within the cylinder and prevents any undesired movement or loss of load.
During the retraction phase, when fluid needs to return from one side of the cylinder back to its reservoir or tank, a single balance valve enables this reverse flow while blocking any incoming flow from other sources. This effectively controls and directs fluid in a way that allows for smooth retraction without interference or pressure loss.
The design of a single balance valve typically consists of an internal check valve mechanism operated by a pilot control signal. The pilot signal may be generated using various methods such as mechanical springs, air pressure, or electric solenoids depending on specific application requirements.
Overall, single balance valves play an essential role in maintaining control over hydraulic system operations involving single-acting cylinders. By allowing forward flow during extension and regulating reverse flow during retraction, these valves ensure safe and efficient functioning while preventing unintended movements and protecting against overloads.
Operating Principle
| Model |
VBCD-G38-SE A |
| Max Pressure |
30Mpa |
| Max Flow |
40L/min |
| Pilot Ratio |
1:4.25 |
| Type |
Max Pressure |
Max Flow |
| VBCD-G12-SE |
320bar |
60L/min |
| VBCD-G38-SE |
320bar |
40L/min |
| VBCD-G12-SE A |
320bar |
60L/min |
| VBCD-G38-SE A |
320bar |
40L/min |
| VBCD-G12-SE-FL4 |
320bar |
90L/min |
| VBCD-M22-SE-FL |
320bar |
60L/min |
FAQ
Q1: Are you a trading company or a manufacturer?
A: We are a reputable manufacturer with all the necessary licenses for import and export.
Q2: How long is your delivery time?
A: Typically, our delivery time is 5-10 days if the goods are in stock, and 30-40 days if they are out of stock.
Q3: Do you provide samples? Are they free or do they come at an extra cost?
A: Yes, we do provide samples, but they come with a charge.
Q4: What are your terms of payment?
A: For payments below 1000 USD, full advance payment is required. For payments above 1000 USD, we require a 30% T/T advance, with the remaining balance due before shipment.
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