DCV17 Wafer Type Swing Check Valve
Devinsan offers space-saving, low-resistance check valve solutions engineered for dependable backflow prevention and energy efficiency in confined pipeline environments. Designed for easy integration and reduced system weight, these DCV17 Wafer Type Swing Check Valve units combine a highly compact profile with proven swing-disc dynamics to meet the critical demands of modern commercial and municipal piping.
Production Standard
Nominal Dimension (DN)
Nominal Pressure (PN)
Operating Temperature
Design
Face to Face
Connection
Testing
DN 25 – DN 400
PN 6-PN 10-PN 16
-30° / +200°
EN 14341
EN 558 Series 97
EN 1092-1 ISO7005-1 Wafer Type
EN 12266-1
Application Areas
The DCV17 Wafer Type 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 DCV17 Wafer Type Swing Check Valve ensures precise fluid control, maintains excellent sealing integrity, and supports efficient, safe operation even under demanding conditions.
The DCV17 Wafer Type Swing Check Valve is a compact and efficient non-return valve specifically engineered to prevent reverse flow with minimal head loss, making it an excellent choice for optimizing pump efficiency. Designed to meet the demands of modern infrastructure, this valve delivers exceptional operational reliability, space efficiency, and long-term durability across a wide range of utility and industrial fluid systems.
At the core of the DCV17 Wafer Type Swing Check Valve is its streamlined swing-disc mechanism housed within an ultra-short wafer body. When forward flow pressure is adequate, the hinged disc swings completely out of the flow path, creating a large, unobstructed passage and ensuring minimal energy consumption. Upon flow reversal, the disc quickly swings back into the seat, utilizing the pressure difference and gravity to achieve a reliable, positive seal against backflow.
Manufactured from high-strength, corrosion-resistant materials and built with a lightweight, short face-to-face body, the DCV17 Wafer Type Swing Check Valve is designed to handle continuous moderate-to-high flow rates and general fluid applications. Its wafer design allows for secure installation by simply being bolted between standard pipeline flanges. This compact configuration significantly simplifies installation logistics and reduces overall system support requirements.
The DCV17 Wafer Type Swing Check Valve is ideally suited for applications in water treatment plants, HVAC chillers, irrigation manifolds, and general industrial pipelines where rapid installation and reduced footprint are essential. Its full-bore performance and reliable backflow prevention make it a preferred choice for engineers seeking a high-integrity, standards-compliant solution for routine pipeline protection and fluid control.
In summary, the DCV17 Wafer Type Swing Check Valve offers an optimal combination of compact design, hydraulic efficiency, and reliable backflow control. With its full-bore swing mechanism, durable construction, and space-saving profile, this unit stands as a trusted solution for modern fluid control and pipeline protection requirements worldwide.
1. General Information
The DCV17 Wafer Type Swing Check Valve is designed for use between standard ASME/DIN flanges in distribution networks, requiring fast and space-efficient 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 equipment handling.
Wear appropriate personal protective equipment (PPE).
Confirm that the pipeline section is fully depressurized and drained before attempting to install the DCV17 Wafer Type Swing Check Valve.
3. Pre-Installation Checklist
Inspect the DCV17 Wafer Type Swing Check Valve for any visible damage during transport or storage, paying attention to the disc hinge assembly and resilient seat.
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 that the installed length is sufficient for the wafer body and that the hinge pin is intact.
4. Installation Procedure
Positioning: Install the DCV17 Wafer Type 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 and above the flow path to ensure proper seating.
Use the appropriate gaskets suitable for the medium and operating conditions, placing one on each side of the wafer body.
Align the valve precisely between the pipeline flanges and insert bolts, tightening them gradually and crosswise in incremental steps. This ensures even pressure on 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 DCV17 Wafer Type Swing Check Valve and ensures reliable backflow prevention and efficient operation. Follow the guidelines below to maximize the longevity of this essential unit.
1. Routine Operation
Visually inspect the DCV17 Wafer Type Swing Check Valve exterior regularly to ensure the body is free of external corrosion, especially around the body bolts. Ensure that the flow velocity is maintained above the minimum required to fully open the disc and stabilize the spring, preventing constant fluttering.
2. Inspection Schedule
Monthly, check the valve exterior for external leaks around the flange connections.
Quarterly, listen for any ‘chattering’ noise during operation, which may indicate flow is too low to stabilize the disc, requiring system adjustment.
Annually, perform a detailed inspection by removing the entire valve body from the line to check the hinge pins, disc seating surface, and seal condition.
3. Lubrication
The internal hinge mechanism of the DCV17 Wafer Type Swing Check Valve is self-contained and designed to be maintenance-free. No external grease or oil is required for the disc assembly or sealing mechanism.
4. Seal and Gasket Replacement
Replace the flange gaskets immediately if external leakage is observed during operation. The internal disc seal or seating surfaces should only be replaced if consistent internal leakage (backflow) is detected after a 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 DCV17 Wafer Type Swing Check Valve clean to prevent surface corrosion, which is minimized by its compact, contained design. Ensure that the internal flow path remains clear of debris that could impede the disc’s swing open fully or close tightly.
6. Storage and Spare Parts
Store spare parts (gaskets, replacement discs/seals, hinge pins) 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 DCV17 Wafer Type 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 DCV17?
What are the main advantages of this valve?
The DCV17 Wafer Type 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.
Why is the DCV17 considered a highly hydraulically efficient check valve?
The DCV17 Wafer Type Swing Check Valve is highly efficient because its swing disc moves completely out of the flow path when open. This creates a full, unobstructed bore, ensuring minimal head loss and reduced energy consumption across the pump system.
Does the DCV17 require specific flow velocity to operate correctly?
Yes. Like all swing check valves, the DCV17 Wafer Type Swing Check Valve requires a minimum flow velocity to hold the disc fully open. Operating below this minimum can cause the disc to flutter, leading to premature wear and potential pressure fluctuations.
How is internal maintenance performed on the DCV17 Wafer Type Swing Check Valve?
Due to its wafer design, internal maintenance requires removing the entire DCV17 Wafer Type Swing Check Valve from the pipeline by loosening all flange bolts. This allows full access to the internal swing disc assembly and seating area.
Contact Devinsan
Reach out to our team for inquiries, quotes, and technical assistance