DCV18 Foot Valve
Devinsan offers specialized suction control solutions engineered for continuous flow maintenance and comprehensive pump protection in demanding intake applications. Designed for maximum longevity and sediment control, these DCV18 Foot Valve units combine robust check valve action with an integrated strainer mechanism to meet the critical demands of modern raw water management.
Production Standard
Nominal Dimension (DN)
Nominal Pressure (PN)
Operating Temperature
Connection
Testing
DN 40 – DN 600
PN 6-PN 10-PN 16-PN 25-PN 40
-30° / +200°
EN 1092-2 ISO7005-2 Flanged
EN 12266-1
Application Areas
The DCV18 Foot Valve is widely used across diverse industrial and commercial sectors, delivering reliable flow control and long‑lasting performance.
1. Water and Wastewater Systems
2. Chemical Industry
3. Food and Beverage Industry
4. Pharmaceutical Industry
5. Oil and Gas Industry
6. HVAC (Heating, Ventilation, Air Conditioning) Systems
In these applications, this type DCV18 Foot Valve ensures precise fluid control, maintains excellent sealing integrity, and supports efficient, safe operation even under demanding conditions.
The DCV18 Foot Valve is a crucial component specifically engineered to be installed at the intake point (foot) of a pump suction line, serving a dual function as a non-return valve and a coarse strainer. Designed to meet the stringent demands of modern infrastructure, this specialized unit ensures the pipeline remains primed by preventing water column drain-back while safeguarding the pump against harmful debris.
At the core of the DCV18 Foot Valve is its reliable internal check mechanism (typically a hinged disc or spring-assisted component) which opens freely with the suction force of the pump. When the pump is shut off, the mechanism closes instantly, maintaining the prime within the suction line. This feature is essential for ensuring rapid restart capabilities and preventing pump cavitation damage from air entering the system.
Manufactured from high-strength, corrosion-resistant materials and built with a robust body, the DCV18 Foot Valve is designed to withstand continuous submergence and challenging raw water environments. The integrated strainer/screen section prevents large solids, sediment, and foreign objects from entering the pipeline, protecting the downstream pump impeller and related equipment. Its flanged or socket end allows for secure integration into the intake piping.
The DCV18 Foot Valve is ideally suited for applications in reservoir intake systems, irrigation pumping stations, and large volume water extraction where continuous suction prime and comprehensive foreign object protection are essential. Its reliable function and integrated protection make it a preferred choice for engineers seeking a high-integrity, standards-compliant solution for long-term raw water management.
In summary, the DCV18 Foot Valve offers an optimal combination of suction line security, debris filtering, and maintenance reduction. With its dependable non-return mechanism, integrated strainer, and durable construction, this unit stands as a trusted solution for modern pump protection and fluid intake requirements worldwide.
1. General Information
The DCV18 Foot Valve is designed for submerged use at the inlet of a pump suction line, requiring positioning well below the minimum fluid level. Proper installation is essential to guarantee safe operation, long service life, and sustained prime maintenance.
2. Safety Precautions
Installation must be performed by qualified personnel only.
Ensure strict compliance with all local safety regulations and standards concerning submerged equipment lifting and installation in fluid bodies.
Wear appropriate personal protective equipment (PPE), especially when working near water.
Confirm that the pump is electrically isolated and the suction line is fully depressurized before beginning installation of the DCV18 Foot Valve.
3. Pre-Installation Checklist
Inspect the DCV18 Foot Valve for any visible damage during transport or storage, paying particular attention to the strainer screen integrity and the seating area of the check mechanism.
Check that the valve type, size, and connection rating match the system requirements.
Verify that the valve interior is clean and free from debris.
Confirm that the suction pipe end is clean and aligned correctly for connection to the foot valve. Ensure the final placement location provides sufficient clearance beneath the fluid surface and above the bottom to prevent vortex formation or sediment ingestion.
4. Installation Procedure
Positioning: Connect the DCV18 Foot Valve securely to the end of the suction pipe using appropriate bolting (for flanged ends) or joining methods (for socket ends). The valve must be submerged deep enough to prevent air intake (vortexing) during maximum flow.
Lower the pipe assembly into the fluid body, ensuring the foot valve rests securely and vertically on a stable support structure, if required.
Ensure the strainer is oriented correctly and is not obstructed by surrounding sediment or debris.
5. Post-Installation
Slowly start the pump and prime the system, checking for smooth operation and confirming that the suction pressure remains stable. Monitor the system during the first few cycles to ensure the check mechanism is closing and maintaining prime correctly after pump shutoff. Record the installation details, depth of submergence, and operational notes for documentation purposes.
Proper maintenance extends the service life of the DCV18 Foot Valve and ensures reliable suction line priming and debris filtration. Follow the guidelines below to maximize the longevity of this essential unit.
1. Routine Operation
Visually inspect the DCV18 Foot Valve and its intake area regularly (e.g., monthly) for any signs of strainer blockage, excessive sediment buildup, or damage to the valve body. Ensure that the pump operation maintains flow rates sufficient to lift the check mechanism completely off the seat to maintain self-cleaning action and prevent sedimentation.
2. Inspection Schedule
Monthly, check the area surrounding the DCV18 Foot Valve for external obstruction or accumulation of large debris against the strainer.
Quarterly, check the overall structural integrity of the submerged valve assembly and the support structure (if applicable).
Annually, perform a detailed inspection by raising the foot valve assembly to check the internal check mechanism seating surfaces, hinge pins, and screen condition.
3. Lubrication
The internal check mechanism of the DCV18 Foot Valve operates freely within the fluid and is generally designed to be maintenance-free. No external grease or oil is required for the internal components.
4. Seal and Gasket Replacement
Replace the flange gasket (if flanged) immediately upon reinstallation if external leakage is detected after lowering the pipe. The internal check mechanism seal should only be replaced if the valve fails to maintain suction prime after pump shut-off. Always isolate the pump and drain the suction line thoroughly before attempting any maintenance work that requires raising the assembly.
5. Cleaning
Keep the exterior strainer of the DCV18 Foot Valve clean to ensure unrestricted flow intake, which is the valve’s primary function. Regularly clear the strainer screen of any collected debris or bio-fouling to prevent flow restriction and cavitation risk for the pump.
6. Storage and Spare Parts
Store spare parts (gaskets, cleanout seals, replacement check components, screen sections) in a dry, clean, and cool environment, away from direct sunlight. Maintain a detailed record of all inspections, screen cleaning cycles, and repairs performed on the DCV18 Foot Valve unit.
We prioritize quality at every stage of production to deliver durable, safe, and efficient products. Our continuous improvement and strict quality controls keep us at the forefront of the industry.
Our certifications prove our commitment to excellence and compliance with international standards, ensuring the safety and reliability of our products worldwide.
We continuously invest in innovation and quality to expand our certifications and meet evolving industry needs.
Frequently Asked Questions about the DCV18?
What are the main advantages of this valve?
The DCV18 Foot Valve offers the critical dual function of maintaining the pump’s prime (preventing drain-back) and providing integrated filtration via its strainer, protecting the pump from debris and ensuring efficient system startup.
Why should I choose this product?
This valve delivers outstanding performance in both sealing and durability, making it a dependable choice for demanding applications. Its straightforward design facilitates easy installation, offering flexibility during system design. With a wide range of material options, it meets the needs of various infrastructure projects, from municipal water networks to industrial facilities.
What happens if the strainer on the DCV18 Foot Valve becomes clogged?
If the strainer becomes excessively clogged, it can drastically reduce the flow rate into the pump. This increased resistance on the suction side can lead to pump cavitation, reduced efficiency, and potential damage to the pump itself.
Can the DCV18 Foot Valve be used in a highly silty environment?
While the DCV18 Foot Valve provides protection, in highly silty or muddy environments, it must be installed significantly above the sediment layer to avoid frequent clogging of the strainer and prevent the check mechanism from failing to seat properly.
How is the internal check mechanism of the DCV18 Foot Valve accessed for inspection?
Access to the internal check mechanism requires the DCV18 Foot Valve to be raised out of the fluid and removed from the suction line. Inspection is typically performed by unbolting the body or removing a bolted cover plate on the valve body.
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