Catalog HY17-8505/UK

Open-Center Directional Control Valve

Technical Information

VO40

 

 

Performance Curves

 

Pressure Drop - Open Center PT

Pressure Drop - Open Center PT

 

PSI

Bar

 

Side Inlet to Side Outlet

 

 

 

 

 

 

 

 

 

217.5

15

 

 

 

 

 

 

 

 

P

T

 

 

 

 

174.0

12

 

 

 

 

 

Pressure

130.5

9

 

8 Section Valve

 

 

 

 

 

 

 

 

 

 

3 Section Valve

 

 

87.0

6

 

1 Section Valve

 

 

 

43.5

3

 

 

 

 

 

 

 

0

10

20

30

40

50

 

LPM0

 

GPM

2.6

5.3

7.9

10.6

13.2

 

 

 

 

 

Flow

 

 

 

 

 

 

Pressure Drop - PA

 

 

 

PSI

Bar

 

Top Inlet to Top Outlet

 

 

 

 

 

 

 

 

 

217.5

15

P

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

T

 

 

 

 

174.0

12

 

 

 

 

 

Pressure

130.5

9

 

 

 

 

 

 

 

 

8 Section Valve

 

 

87.0

6

 

3 Section Valve

 

 

 

1 Section Valve

 

 

 

 

 

 

 

 

 

43.5

3

 

 

 

 

 

 

 

0

10

20

30

40

50

 

LPM0

 

GPM

2.6

5.3

7.9

10.6

13.2

 

 

 

 

 

Flow

 

 

 

 

 

 

Pressure Drop - AT

 

 

 

PSI Bar

 

Top Inlet to Cylinder Port

 

 

PSI

Bar

 

 

 

 

 

 

 

217.5

15

 

 

 

 

 

217.5

15

 

 

 

P

 

 

 

 

 

 

 

174.0

12

 

 

8 Section Valve

 

174.0

12

 

 

A

3 Section Valve

 

 

 

 

 

 

 

 

 

 

 

 

 

1 Section Valve

 

 

 

Pressure

130.5

9

 

 

 

 

Pressure

130.5

9

87.0

6

 

 

 

 

87.0

6

 

43.5

3

 

 

 

 

 

43.5

3

 

 

0

10

20

30

40

50

 

0

 

LPM0

LPM0

 

GPM

2.6

5.3

7.9

10.6

13.2

GPM

 

 

 

 

 

Flow

 

 

 

 

Cylinder Port to Side Outlet

A

T

8 Section Valve

3 Section Valve

1 Section Valve

10

20

30

40

50

2.6

5.3

7.9

10.6

13.2

Flow

NOTE: ISO VG 46 oil @ 50 °C

Environmental Characteristics

The valve can be mounted in all conceivable directions. However, the mounting base should be flat and stable so that the valve is not subjected to strain.

While the o-rings in the valve are normally of nitrile rub- ber, there are a number of special fluorocarbon variants. Please contact Parker for further information.

Temperature

Oil temperature, working range: +20°C to 90 °C (68 to 194 °F)*

Filtration

Filtration must be arranged so that Target Contamination Class 20/18/14 according to ISO 4406 is not exceeded. For the pilot circuit, Target Contamination Class 18/16/13 according to ISO 4406 must not be exceeded.

Hydraulic Fluids

Best performance is obtained using mineral-base oil of high quality and cleanliness in the hydraulic system.

Hydraulic fluids of type HLP (DIN 51524), oil for automatic gearboxes Type A and engine oil type API CD can be used.

Viscosity, working range: 15-380 mm2/s (15-380 cST)**

Technical information in this catalog is applicable at an oil viscosity of 30 mm2/s (30 cST) and temperature of 50 °C (122 °F) using nitrile rubber seals.

*Product operating limits are broadly within the above range, but satisfactory operation within the specification may not be accom- plished. Leakage and response will be affected when used at tem- perature extremes and it is up to the user to determine acceptability at these levels.

**Performance efficiency will be reduced if outside the ideal values. These extreme conditions must be evaluated by the user to establish suitability of the product’s performance.

Parker Hannifin Corporation

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Parker Hannifin manual Technical Information VO40 Performance Curves, Environmental Characteristics

VO40 specifications

Parker Hannifin's VO40 is a sophisticated and versatile hydraulic valve that has garnered attention for its innovative design and wide-ranging applications. Designed to meet the increasing demands for efficiency and reliability in various industrial and mobile machinery, the VO40 series exemplifies Parker's commitment to providing high-performance solutions.

One of the primary features of the VO40 is its compact design, which allows for easy integration into systems with limited space. This is accomplished without sacrificing performance, as the valve delivers exceptional flow rates, which can significantly enhance the efficiency of hydraulic systems. The VO40's multi-functionality enables it to serve diverse roles, from directional control to flow regulation, making it suitable for a variety of hydraulic applications.

The VO40 utilizes advanced technologies, including modular construction, which provides flexibility for different system configurations. This modularity allows users to customize the valve to their specific requirements, whether they need a simple on/off control or more complex, proportional flow regulation. The valve's design also incorporates electronic control capabilities, enabling users to achieve precise movements and optimize system performance.

In terms of materials, the VO40 is constructed from robust components to withstand high-pressure operations and harsh environments. The valve's sealing technology is engineered for durability and reliability, minimizing the risk of leaks and prolonging the service life of the product. This reliability is a critical factor in reducing maintenance costs and ensuring operational continuity in demanding applications.

Another significant characteristic of the VO40 is its ease of installation and maintenance. The design allows for quick assembly and disassembly, which is crucial for minimizing downtime during maintenance activities. Additionally, the valve features diagnostic capabilities, enabling operators to monitor performance and address potential issues proactively.

In conclusion, the Parker Hannifin VO40 hydraulic valve stands out in the marketplace due to its compact size, modularity, advanced electronic controls, and robust construction. Its design and technology make it an ideal choice for users seeking reliable and efficient solutions for their hydraulic systems. By integrating the VO40 into their operations, companies can enhance productivity while ensuring a long-lasting, low-maintenance hydraulic solution.