Mobile Directional Valves DCV200 Sectional 6 levers spring centered
valves for construction and earth moving machines
DCV directional control valve is designed for high pressure
hydraulic system such as drilling machine, sanitation,
crances,lifters, construction machints, earth movers machines,
yellow line .etc
DCV Series (DCV60 series & DCV100 & DCV140 Series & DCV200 Series)
| flow rate | 200liters/52.5GPM |
| number of spools | 6spools |
| inlet section valve | side inlet, with relief valve |
| relief valve set pressure | 100-315bar |
| inlet port size | G1 |
| spool type | 3 positon, double acting |
| handle side arrangement | standard handle |
| spool cap side arrangement | 3position, spring return,mantal control |
| working section arrangement | standard type |
| work port size | G3/4 |
| outlet section type | top outlet |
| outlet port size | G1 |
Directional valves are widely used in all walks of life, there are
many advantages, but at the same time there are some limitations,
understanding the
disadvantages
of directional valves can also be more convenient for people to choose.
1. Manual directional valve:
(1) It needs to be operated manually, which is relatively slow and
cannot realize automatic control.
(2) Manual operation is prone to errors and requires relatively
high operator skills.
(3) Compared with other types of valves, the manual fluid control
ability of directional valves is relatively weak.
2. Solenoid directional valve:
The simple structure of the solenoid directional valve is its
advantage, which is very easy to install, but this is also its
limitation, because the valve core can only move between two
extreme positions and cannot be adjusted continuously. Because the
electromagnetic directional valve needs to interact with various
forces during operation, the performance of the internal fluid
medium will have a certain impact on these forces, which requires
the medium to have good cleanliness and meet certain viscosity
requirements. In order to ensure the reliability of the operation
of solenoid directional valves, it is necessary to continuously
improve the technology to overcome these innate defects.
3. Motorized directional valve:
The critical components of the motorized directional valve are
susceptible to wear and tear, especially when used in large
quantities, and need to be replaced or repaired regularly, and the
maintenance cost is relatively high. In addition, the motorized
directional valve needs to be cleaned regularly to ensure its
proper functioning. The maintenance of motorized directional valves
requires a relatively high level of technology and professional
knowledge, and the operation is complex, which requires
professional training by maintenance personnel, thereby increasing
the maintenance cost. In addition, motorized directional valves and
other equipment are mechanically bonded together, and multiple
parts need to be separated and assembled during maintenance, which
is a relatively difficult job.
4. Electro-hydraulic directional valve:
(1) There are many wearing parts. The internal structure of the
electro-hydraulic directional valve is relatively complex, so there
are many wearing parts. For example, the mechanical parts of the
solenoids and switching spools tend to wear and tear out over time,
which requires frequent replacement of parts, increasing
maintenance costs and work.
(2) Frequent maintenance. Due to the large number of wearing parts,
electrohydraulic directional valves also require frequent
maintenance. If the damaged parts are not maintained and replaced
in time, it will lead to the failure of the electro-hydraulic
reversing valve, which will seriously affect the normal operation
of the equipment.
(3) The performance stability is not high. The performance
stability of the electro-hydraulic directional valve is not high,
which is mainly because the response time of the electro-hydraulic
directional valve is long during use, and it is easy to be affected
by environmental factors such as temperature, humidity, and
voltage. As a result, the valve cannot control the fluid on time,
resulting in system instability.
(4) High energy consumption. Electrohydraulic directional valves
usually require a high power supply to operate properly, so the
energy consumption is also relatively high, which can cause certain
economic pressure on the production enterprise.
4 way directional valve
directional control valves
SMC solenoid valve
solenoid directional valve
