DCV11 Swing Check Valve
Devinsan offers reliable and hydraulically efficient check valve solutions engineered for dependable backflow prevention and minimal head loss in pressurized systems. Designed for minimal maintenance, these DCV11 Swing Check Valve units combine a robust, full-bore design with proven hinge mechanisms to meet the critical demands of modern water and industrial networks.
Production Standard
Nominal Dimension (DN)
Nominal Pressure (PN)
Operating Temperature
Design
Face to Face
Connection
Coating
Testing
DN 40 – DN 300
PN 6-PN 10-PN 16-PN 25-PN 40
-30° / +200°
EN 12334 – EN 16767
EN 558 Series 48 – DIN 3202 F6
EN 1092-2 ISO7005-2 Flanged
Electrostatic Powder Epoxy
EN 12266-1
Operation Versions
The DCV11 Swing Check Valve can be operated with a range of compatible accessories to suit different installation and automation requirements:
1. DCV12 Swing Check Valve With Lever
These accessories allow the valve to be adapted for manual, geared, pneumatic, or electric operation, ensuring precise control and reliable performance in both industrial and commercial systems.
Application Areas
The DCV11 Swing 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 DCV11 Swing Check Valve ensures precise fluid control, maintains excellent sealing integrity, and supports efficient, safe operation even under demanding conditions.
The DCV11 Swing Check Valve is a reliable and straightforward non-return valve specifically engineered to prevent damaging backflow and flow reversal in standard municipal and industrial pipelines. Designed to meet the demands of modern infrastructure, this valve ensures exceptional operational reliability, long-term durability, and hydraulic efficiency in systems requiring minimal head loss.
At the core of the DCV11 Swing Check Valve is its simple, hinged disc mechanism. The disc is mounted on a hinge pin, allowing it to swing freely out of the flow path when fluid pressure is sufficient in the forward direction. Upon flow reversal, the disc swings quickly back into the seat, providing an immediate and effective bubble-tight barrier against backflow. This simple design minimizes moving parts, increasing overall reliability.
Manufactured from high-strength, corrosion-resistant materials and built with a robust ductile iron body, the DCV11 Swing Check Valve is designed to handle continuous high flow rates and challenging fluid environments. Its flanged design allows for secure installation into horizontal or vertical pipelines with upward flow. The full-bore design ensures a very low pressure drop during normal operation, contributing significantly to reduced pumping energy costs.
The DCV11 Swing Check Valve is ideally suited for applications in booster pump stations, filtration plants, irrigation lines, and general utility pipelines where simplicity, cost-effectiveness, and dependable backflow prevention are essential. Its robust construction 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 DCV11 Swing Check Valve offers an optimal combination of low-maintenance design, hydraulic efficiency, and reliable performance. With its full-bore passage, durable construction, and simple, proven swing disc mechanism, this unit stands as a trusted solution for modern fluid control and pipeline protection requirements worldwide.
1. General Information
The DCV11 Swing Check Valve is designed for use in distribution networks and pumping stations, requiring reliable 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 DCV11 Swing Check Valve.
3. Pre-Installation Checklist
Inspect the DCV11 Swing Check Valve for any visible damage during transport or storage, paying attention to the disc and hinge assembly.
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 around the valve for disc swing clearance and access to the inspection cover.
4. Installation Procedure
Positioning: Install the DCV11 Swing Check Valve ensuring the flow direction matches the arrow cast on the valve body. For horizontal lines, the hinge pin must be positioned horizontally to ensure proper seating.
Use the appropriate gaskets suitable for the medium and operating conditions.
Align the valve precisely with 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 and inspection cover gasket. 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 DCV11 Swing Check Valve and ensures reliable backflow prevention. Follow the guidelines below to maximize the longevity of this essential unit.
1. Routine Operation
Visually inspect the DCV11 Swing Check Valve exterior regularly to ensure the hinge area is free of external corrosion and to check for any visible movement during forward flow. Avoid installing in lines with highly erratic flow, as excessive disc movement can accelerate wear on the hinge pin.
2. Inspection Schedule
Monthly, check the valve exterior for external leaks around the body, inspection cover, and flange connections.
Quarterly, listen for any ‘chattering’ noise during operation, which may indicate insufficient flow to hold the disc fully open, leading to premature wear.
Annually, perform a detailed internal inspection by removing the inspection cover to check the hinge pins, disc seating surface, and internal coating condition.
3. Lubrication
The hinge pin mechanism of the DCV11 Swing Check Valve is generally designed to be maintenance-free, utilizing self-lubricating bushings. Consult the manufacturer’s technical manual for specific lubrication requirements, if any, for the swing assembly.
4. Seal and Gasket Replacement
Replace the inspection cover gasket and any external O-rings immediately if external leakage is observed during operation. The disc seal or seat should only be replaced if internal leakage (backflow) is detected after a pump shut-off test. Always depressurize and drain the pipeline thoroughly before attempting any internal maintenance work.
5. Cleaning
Keep the exterior of the DCV11 Swing Check Valve clean to prevent surface corrosion, especially on the inspection cover bolts. Ensure that the internal flow path remains clear of large debris that could impede the disc’s ability to swing open fully or close tightly.
6. Storage and Spare Parts
Store spare parts (gaskets, seals, hinge components) 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 DCV11 Swing 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 DCV11?
What are the main advantages of this valve?
The DCV11 Swing Check Valve offers reliable backflow prevention combined with an extremely low head loss due to its full-bore, non-obstructive design when fully open. This makes it highly energy efficient and cost-effective for high-volume pumping systems.
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 is the benefit of the DCV11's full-bore design?
The full-bore design means that when the disc is fully open, the flow path is essentially unobstructed, resulting in minimal pressure drop and reducing the energy required for pumping, which is a major advantage over restrictive check valve designs.
Is the DCV11 Swing Check Valve effective at preventing water hammer?
The DCV11 Swing Check Valve is generally slower to close than tilting disc or non-slam designs, making it more prone to water hammer in high-head or fast-reversing systems. It is best used in systems where flow deceleration is gradual.
How is the internal mechanism accessed for maintenance?
Maintenance access is gained through a bolted inspection cover on the body top (bonnet), allowing internal parts like the hinge pin and disc to be inspected or removed without having to remove the entire DCV11 Swing Check Valve body from the pipeline.
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