DCV15 Dual Plate Check Valve
Devinsan offers compact, non-slam check valve solutions engineered for rapid backflow prevention and minimal pressure drop in high-velocity fluid systems. Designed for easy installation and space efficiency, these DCV15 Dual Plate Check Valve units combine lightweight, dual-disc dynamics with robust construction to meet the critical demands of modern municipal and industrial infrastructure.
Production Standard
Nominal Dimension (DN)
Nominal Pressure (PN)
Operating Temperature
Design
Face to Face
Connection
Coating
Testing
DN 50 – DN 400
PN 6-PN 10-PN 16
-30° / +200°
EN 12334
EN 558 Series 16
EN 1092-1 ISO7005-2 Dual Disco Type
Electrostatic Powder Epoxy
EN 12266-1
Application Areas
The DCV15 Dual Plate Check 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 DCV15 Dual Plate Check Valve ensures precise fluid control, maintains excellent sealing integrity, and supports efficient, safe operation even under demanding conditions.
The DCV15 Dual Plate Check Valve is an advanced, high-performance non-return valve specifically engineered to ensure rapid closure, minimizing pressure surge and water hammer in large-scale piping systems. Designed to meet the stringent demands of modern infrastructure, this valve delivers fast-acting operational reliability, exceptional efficiency, and long-term durability in critical water, HVAC, and industrial applications.
At the core of the DCV15 Dual Plate Check Valve is its unique two-disc design. The discs are hinged to a central pin and held closed by spring action, allowing them to open completely with minimal pressure from forward flow. This design ensures that the discs travel a very short distance and close extremely quickly upon flow reversal, minimizing ‘slam’ and virtually eliminating reverse flow dynamic shock.
Manufactured from high-strength, corrosion-resistant materials and built with a compact, short face-to-face body, the DCV15 Dual Plate Check Valve is designed to withstand continuous high flow rates and challenging fluid environments. Its wafer or lugged design allows for secure installation between standard pipeline flanges. The short installation length significantly reduces piping stress and installation space, providing a crucial advantage in congested plant layouts.
The DCV15 Dual Plate Check Valve is ideally suited for applications in high-rise buildings, municipal booster pump discharge lines, fire protection systems, and any pipeline where compactness and the mitigation of water hammer are essential. Its superior closing dynamics and reliable performance make it a preferred choice for engineers seeking a high-integrity, standards-compliant solution for routine pipeline protection and fluid control.
In summary, the DCV15 Dual Plate Check Valve offers an optimal combination of low weight, hydraulic efficiency, and superior protection against transient pressure spikes. With its rapid closing dual disc mechanism, durable construction, and space-saving design, this unit stands as a trusted solution for modern fluid control and critical system protection requirements worldwide.
1. General Information
The DCV15 Dual Plate Check Valve is designed for use in distribution networks and pumping systems, requiring fast-acting backflow prevention. Proper installation is essential to guarantee safe operation, long service life, and efficient, leak-free performance.
2. Safety Precautions
Installation must be performed by qualified personnel only.
Ensure strict compliance with all local safety regulations and standards concerning pipeline pressure and heavy equipment handling.
Wear appropriate personal protective equipment (PPE).
Confirm that the pipeline section is fully depressurized and drained before attempting to install the DCV15 Dual Plate Check Valve.
3. Pre-Installation Checklist
Inspect the DCV15 Dual Plate Check Valve for any visible damage during transport or storage, paying attention to the disc hinge assembly and seating area.
Check that the valve type, size, and pressure rating match the system requirements.
Verify that the valve interior is clean and free from debris that could interfere with disc seating.
Confirm that the mating pipeline flanges are properly aligned (parallel and concentric) and free from burrs or sharp edges. Ensure sufficient space is available for eventual removal, although its compact design minimizes requirements.
4. Installation Procedure
Positioning: Install the DCV15 Dual Plate Check Valve ensuring the flow direction matches the arrow cast on the valve body. The valve is suitable for installation in horizontal lines or vertical lines with upward flow.
Use the appropriate gaskets suitable for the medium and operating conditions.
Align the valve precisely between the pipeline flanges and insert bolts, tightening them gradually and crosswise in incremental steps. This ensures even compression of the gasket and prevents stress on the valve body.
5. Post-Installation
Slowly pressurize the system after installation and check for leaks around the flange connections. If leakage is detected, depressurize the system immediately and re-tighten the bolts following the cross-pattern sequence. Record the installation details, date, and final bolt torques for documentation purposes.
Proper maintenance extends the service life of the DCV15 Dual Plate Check Valve and ensures reliable backflow prevention and non-slam operation. Follow the guidelines below to maximize the longevity of this essential unit.
1. Routine Operation
Visually inspect the DCV15 Dual Plate Check Valve exterior regularly to ensure the body is free of external corrosion and to check for any vibration during operation. Ensure the flow velocity is adequate to hold the dual discs fully open during continuous operation to prevent disc flutter and wear.
2. Inspection Schedule
Monthly, check the valve exterior for external leaks around the body and flange connections.
Quarterly, listen for any ‘chattering’ noise during operation, which may indicate flow is too low to hold the discs open, requiring system adjustment.
Annually, perform a detailed internal inspection by removing the entire valve body from the line to check the hinge pins, spring tension, and seating surface condition.
3. Lubrication
The internal hinge pins and dual-disc mechanism of the DCV15 Dual Plate Check Valve are generally designed to be maintenance-free and do not require field lubrication. No external grease or oil is required for the internal components.
4. Seal and Gasket Replacement
Replace the flange gaskets immediately if external leakage is observed during operation. The seating surfaces should only be replaced if consistent internal leakage (backflow) is detected after a pump shut-off test. Always depressurize and drain the pipeline thoroughly before attempting any internal maintenance work requiring flange separation.
5. Cleaning
Keep the exterior of the DCV15 Dual Plate Check Valve clean to prevent surface corrosion, which is minimized by its compact, integrated design. Ensure that the internal flow path remains clear of large debris that could interfere with the dual discs’ seating action.
6. Storage and Spare Parts
Store spare parts (gaskets, replacement discs/seals) in a dry, clean, and cool environment, away from direct sunlight and harsh chemicals. Maintain a detailed record of all inspections, internal part replacements, and repairs performed on the DCV15 Dual Plate Check 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 DCV15?
What are the main advantages of this valve?
The DCV15 Dual Plate Check Valve is highly beneficial due to its lightweight, compact wafer design, making installation easier and reducing space requirements in tight plant layouts. Its rapid closure prevents major water hammer.
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 makes the dual plate design effective for preventing water hammer?
The dual plates have a short stroke and are assisted by a torsion spring, enabling them to close extremely quickly—often within a tenth of a second—before the column of fluid has fully reversed, effectively minimizing the destructive forces of water hammer.
Does the DCV15 Dual Plate Check Valve cause significant pressure drop?
No. The streamlined design and twin plates offer a large flow area, resulting in a significantly lower pressure drop compared to heavier swing or globe-style check valves, contributing to better system efficiency.
Can the DCV15 Dual Plate Check Valve be installed horizontally and vertically?
The DCV15 Dual Plate Check Valve is versatile and can be installed in both horizontal pipelines and vertical pipelines with upward flow without any modification, provided the flow direction is correctly observed.
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