SV/SL Series Pilot Operated Check Hydraulic Valve
The SV/SL series pilot operated check hydraulic valve is a versatile and reliable valve that is ideal for a wide range of hydraulic applications. It is a direct-operated check valve with an integrated pilot valve that allows the valve to be opened against the pressure of the main flow. The SV/SL series pilot operated check hydraulic valve is known for its high pressure capacity, low pressure drop, excellent flow control, durable construction, and easy maintenance.
The SV/SL series pilot operated check hydraulic valve is a high-quality, reliable, and versatile valve that is ideal for a wide range of hydraulic applications. It offers a number of benefits, including improved system performance, increased reliability, reduced maintenance costs, and extended service life. If you are looking for a check valve for your hydraulic system, the SV/SL series is a great option.
SV/SL Series Pilot Operated Check Hydraulic Valve Key Characteristics:
- High Pressure Capacity: The SV/SL series pilot operated check hydraulic valve can withstand operating pressures up to 5000 psi (350 bar).
- Low Pressure Drop: The SV/SL series pilot operated check hydraulic valve has a very low pressure drop, which maximizes system efficiency.
- Excellent Flow Control: The SV/SL series pilot operated check hydraulic valve provides precise flow control, even at high flow rates.
- Durable Construction: The SV/SL series pilot operated check hydraulic valve is made from high-quality materials and is built to withstand the rigors of demanding hydraulic applications.
- Easy Maintenance: The SV/SL series pilot operated check hydraulic valve is easy to disassemble and inspect, making it simple to maintain and repair.
SV/SL Series Pilot Operated Check Hydraulic Valve Parameter:
| Size | 6 | 10 | 16 | 22 | |
| Weight | kg | 0.8 | 2.3 | 8.5 | 13 |
| Max. flow-rate | L/min | 42 | 100 | 200 | 400 |
| Max. operating pressure | bar | to 315 | |||
| Crack pressure | bar | 0.5，3，5 | |||
| Viscosity range | mm2/s | 2.8 to 500 | |||
| Fluid temperature range | ℃ | -20 to +70 | |||
| Fluid | Mineral oil suitable for NBR and FKM seal | ||||
| Phosphate ester for FKM seal | |||||
| Degree of contamination | Maximum permissible degree of fluid contamination: Class 9. NAS 1638 or 20/18/15, ISO4406 | ||||
SV/SL Series Pilot Operated Check Hydraulic Valve Advantages:
NG6
• For base sub-plate mounting follow DIN 24340 A 、
• ISO 4401 and CETOP 121H base plates
• With or without oil release orifice
• Four opening pressure
NG10~32
• For base sub-plate mounting conform to
• DIN24340 D and ISO5781
• For screw connection
• With or without drain port
• With or without unloading function
• Four opening pressure
Usage Method Of SV/SL Series Pilot Operated Check Hydraulic Valve:
The SV/SL series pilot operated check hydraulic valve is typically used in the following applications:
- To prevent backflow in hydraulic systems
- To protect hydraulic components from damage
- To control the flow of hydraulic fluid in one direction
- To hold hydraulic pressure in a system
The SV/SL series pilot operated check hydraulic valve can also be used to create a variety of hydraulic circuits, such as:
- Counterbalance Circuits: Counterbalance circuits prevent a load from falling under gravity when the hydraulic system is deactivated.
- Regenerative Circuits: Regenerative circuits return hydraulic fluid to the reservoir when the load is moving in a direction that opposes the hydraulic force.
- Sequence Circuits: Sequence circuits actuate hydraulic components in a specific order.
Maintenance Of SV/SL Series Pilot Operated Check Hydraulic Valve:
The SV/SL series pilot operated check hydraulic valve requires minimal maintenance. However, it is important to inspect the valve regularly for signs of wear or damage. If any problems are found, the valve should be replaced immediately.
Here are some tips for maintaining your SV/SL series pilot operated check hydraulic valve:
- Inspect the valve regularly for signs of wear or damage. Look for cracks, leaks, and other imperfections.
- Clean the valve regularly with a mild soap and water solution. Avoid using harsh chemicals or solvents.
- Lubricate the moving parts of the valve with a light-duty oil or grease.
- If the valve is not working properly, replace it immediately.
How To Control Hydraulic Cylinder Speed?
- Flow control valve: A flow control valve is a valve that restricts the flow of hydraulic fluid to the cylinder. This can be done by using a needle valve, a gate valve, or a globe valve. The more the valve is closed, the less flow there is to the cylinder, and the slower the cylinder will move.
- Relief valve: A relief valve is a valve that opens when the pressure in the hydraulic system exceeds a set point. This can be used to control the speed of the cylinder by setting the relief valve to a lower pressure than the operating pressure of the system. When the cylinder extends or retracts, the pressure in the system will increase. When the pressure reaches the set point of the relief valve, the valve will open and allow some of the hydraulic fluid to flow back to the reservoir. This will reduce the pressure in the system and slow down the cylinder.
- Proportional valve: A proportional valve is a valve that can be controlled electronically to vary the flow of hydraulic fluid to the cylinder. This allows for very precise control of the cylinder speed.
The best way to control the speed of a hydraulic cylinder will depend on the specific application. For example, if you need to control the speed of a cylinder very precisely, then you would use a proportional valve. If you need to control the speed of a cylinder moving very slowly, then use a relief valve.
Here are some additional tips for controlling the speed of a hydraulic cylinder:
- Use the smallest cylinder possible for the application. A smaller cylinder will require less flow to move, making it easier to control the speed.
- Use a hydraulic pump that is sized for the application. A pump that is too large will produce more flow than the cylinder needs, making it more difficult to control the speed.
- Use a hydraulic accumulator to dampen the flow of hydraulic fluid to the cylinder. An accumulator is a device that stores hydraulic fluid under pressure. It can be used to provide a constant flow of hydraulic fluid to the cylinder, which can help to improve speed control.
Capability & Capacity Of Factory:
(1) Assembly
We have a first-class independent research and development assembly platform. The hydraulic cylinder production workshop has four semi-automatic lifting cylinder assembly lines and one automatic tilt cylinder assembly line, with a designed annual production capacity of 1 million pieces. The special cylinder workshop is equipped with various specifications of a semi-automatic cleaning assembly system with a designed annual production capacity of 200,000 and equipped with famous CNC machining equipment, a machining center, a high-precision cylinder processing special equipment, a robot welding machine, an automatic cleaning machine, automatic cylinder assembly machine, and automatic painting production line. Existing critical equipment of more than 300 sets (sets). The optimal allocation and efficient use of equipment resources ensure the accuracy requirements of products and meet the high-quality needs of products.
(2) Machining
The machining shop is equipped with a customized inclined rail turning center, machining center, high-speed honing machine, welding robot, and other related equipment, which can handle the processing of cylinder tubes with a maximum inner diameter of 400mm and a maximum length of 6 meters.
(3) Welding
(4) Painting & coating
With small and medium-sized cylinder automatic water-based paint coating lines, to achieve automatic robot loading and unloading and automatic spraying, the design capacity of 4000 pieces per shift;
We also have a semi-automatic paint production line for large cylinders powered by a power chain, with 60 cases per shift design capacity.
(5) Testing
We have first-class inspection facilities and test beds to ensure that the performance of the cylinder meets the requirements.
We are one of the best hydraulic cylinder manufacturers. We can offer comprehensive hydraulic cylinders. We also provide corresponding agricultural gearboxes. We have exported our products to clients worldwide and earned a good reputation because of our superior product quality and after-sales service. We welcome customers at home and abroad to contact us to negotiate business, exchange information, and cooperate with us!