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DCV20
cissoko
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The DCV20 Sectional Directional Control Valve is an ultra-compact, high-performance sectional (sandwich-style) hydraulic spool valve. It is engineered specifically for micro-machinery and low-flow mobile/industrial systems that require precise, highly customized fluid control for volumes up to 20 Liters per minute (approx. 5.3 GPM).
Ultra-Compact Power Density: Provides heavy-duty, high-pressure sectional customization features usually reserved for massive machinery, but scaled down into a lightweight housing that fits into severely restricted installation spaces.
Individual Port Valving (Optional): Every working slice can be optionally configured with independent secondary anti-cavitation valves or auxiliary shock/overload relief valves. This lets you restrict pressure on one delicate micro-cylinder without lowering full system pressure for the rest of the machine.
Integrated Safety Elements: Features a global adjustable pressure relief valve built directly into the inlet front section, alongside independent internal load-holding check valves in every segment to eliminate accidental load sagging.
Power Beyond / Closed-Center Adaptable: The outlet tail section can easily convert between traditional open-center configurations, closed-center loops (for variable pumps), or Power Beyond (Carry-Over) setups using simple screw-in adapter plugs.
| Parameter | Official Value | Unit | Remarks |
|---|---|---|---|
| Construction | Sectional / Sandwich Modular Design | — | Available with 1–8 working sections, assembled using compact double-ended tie rods |
| Footprint | Ultra-Compact / Lightweight Micro Design | — | Optimized for small machinery, limited installation spaces, and compact operator cabins |
| Nominal Flow Rate | 20 | L/min | Recommended operating flow, approximately 5.3 GPM; suitable for compact hydraulic systems |
| Maximum Pressure – P Port | 250 (3,625) | bar (psi) | Maximum permissible continuous working pressure at the main inlet port |
| Maximum Pressure – A/B Ports | 300 (4,350) | bar (psi) | Maximum transient pressure permitted at the actuator ports connected to small cylinders or hydraulic motors |
| Maximum Back Pressure – T Port | 50 (725) | bar (psi) | Maximum permissible return-line back pressure; excessive pressure may damage the internal seals |
| Internal Relief Valve Adjustment Range | 50–250 | bar | Installed in the main inlet section; the factory setting is normally 175–180 bar |
| Auxiliary Port Valves | Optional Overload / Anti-Cavitation Valves | — | Individual secondary relief or anti-cavitation valves can be installed on selected working ports for precise pressure control |
| Internal Leakage – A/B to T | ≤ 6 at 100 bar and 46 cSt | cm³/min | Minimal natural internal leakage in the neutral position, helping prevent small actuators from drifting |
Applications
Custom Agricultural Machinery: Specialized harvest headers, vineyard machinery, and compact tractors with diverse accessory attachments.
Forestry Equipment: Small timber cranes, wood processors, and tree grabbers requiring precise, individualized function pressures.
Municipal and Service Vehicles: Small tow trucks, truck-mounted salt spreaders, and mini-dumpers.
Industrial Power Units: Custom test benches and small automated factory machinery blocks.
DCV20 valves are typically packaged securely to prevent damage during transit. The packaging includes:
Protective Wrapping: To safeguard the pump from environmental damage.
Custom Crates: For larger, heavier pumps, ensuring safe handling.
Documentation: Includes installation, maintenance instructions, and warranty details.
Delivery time depends on the model, customizations, and location but typically ranges from 2 to 6 weeks from the order date.
Extreme Space Savings: The DCV20 is a micro-series valve. It squeezes full sectional modularity (mixing single/double-acting or motor spools) into a tiny footprint that fits inside tightly packed mini-excavator cabins or robotic control boxes.
Precision Fluid Metering: Because the nominal flow is rated up to 20 L/min (5.3 GPM), the internal throttling channels provide much smoother, more delicate metering control for small micro-cylinders compared to oversized valves.
Yes, Fully Supported: Despite its miniature size, each working section can be ordered with built-in auxiliary port cavities. This lets you install a delicate secondary shock valve to protect a small gripper cylinder on Section 1, while allowing full system pressure (250 bar) to route to Section 2 for heavy lifting.
Keep It Proportional: Because the DCV20 utilizes compact G 1/4" or G 3/8" ports, overloading it with thick 1-inch industrial hoses is unnecessary and wastes space.
Recommended Sizes: For the pressure (P) and working ports (A/B), standard 1/4-inch or 3/8-inch high-pressure hoses are ideal. For the tank return line (T), always use a minimum of a 3/8-inch hose to keep return back-pressure well below the mandatory 50 bar limit.
Overtorqued Tie Rods: Because the DCV20 casting is small, it has a strict assembly torque limit of 20 to 24 N·m. If you overtighten the tie rods holding the "sandwich" together, you will microscopically warp the individual cast iron slices, binding the sliding spools inside their bores.
Uneven Bolt Tension: Ensure the cross-bolts are tightened incrementally in a balanced cross-pattern sequence using a torque wrench.
Incorrect Closed-Center Plug: If your system uses a fixed-displacement micro gear pump (the most common type for small setups), the oil must flow freely back to the reservoir when the levers are neutral. If a Closed-Center or incorrectly positioned Power Beyond plug was screwed into the end section, it blocks this neutral pathway.
Instant Overpressure: The trapped oil forces the pump to immediately hit maximum system pressure (250 bar) at idle, bogging down or stalling out small electric or gas engines within seconds.
Yes, we support OEM and customization, including nameplate, packaging, and specific performance requirements. Send us your drawings or specifications for evaluation.
DCV20 Valve are manufactured in compliance with international standards, ensuring high performance and reliability:
ISO 9001: Certified for quality management systems.
CE Certification: Ensures compliance with European safety, health, and environmental protection standards.
RoHS Compliance: Ensures the pump does not contain hazardous materials.
Factory Testing: Every valve is rigorously tested for performance, pressure, and leak integrity before shipping.
1.What's our advantages?
Factory established in 2005;
With a great deal of production experience;
80+ employees become the professional team;
Constant updated ERP system ensure efficiency of work;
Sophisticated equipment ehanced the accuracy of products;
Professional salesmen provide the greast service;
With a large number of famous customers all over the world;
Great after-sales service;
With the long term cooperation with famous logistics and express company in China,provide the better goods service.
Small order/sample order,full payment in advance; Big orders send the first payment 30% before the production,and the balance before shippment.We'll show the photos of the products and packages before delivery.
Of course we can. Just send me your logo we can make it for you.
America(40.5%):USA, Canada, Argentina, Brazil
Europe(30.8%):Italy,Germany,England,Holland,Spain,Swiss,Finland,Russia,Poland.
Asia(23.5%):Korea,singapore,India,Turkey,Vietnam,Saudi Arabia,Syria, Israel,Lebanon.
Others(5.8%).
The Cissoko hydraulic pump manufacturing facility is a specialized industrial plant that focuses on producing hydraulic pumps and related components. These factories are equipped with advanced machinery and technology to fabricate high-quality pumps designed for a wide range of applications, from heavy equipment and machinery to automotive and industrial systems.
The production process typically involves precision engineering, where raw materials like metals and alloys are processed into pump components such as gears, pistons, cylinders, and seals. These parts are then assembled into fully functional hydraulic pumps, which are tested for performance and quality control to ensure reliability, efficiency, and durability under various working conditions.
Cissoko Hydraulic's manufacturing facilities for hydraulic pumps maintain stringent quality standards, often adhering to international certifications, to meet the expectations of customers in industries such as construction, agriculture, automotive, and manufacturing.
All hydraulic pumps produced by Cissoko Hydraulic have undergone compliance testing, ensuring their quality and reliability.
To meet the diverse needs of different industries, the Cissoko hydraulic offer customization options, such as specialized seals, materials, and pump configurations. These facilities often work closely with engineering teams to develop tailored solutions for specific applications, from high-pressure systems to low-flow, high-efficiency pumps.
Each pump undergoes a rigorous quality control process, where pressure tests and performance assessments are conducted to ensure that the pumps meet the required standards for flow rate, pressure capacity, and durability.
