DBV10 Double Eccentric Butterfly Valve
Devinsan offers high-performance isolation and regulation solutions engineered for precision control and guaranteed leak-free performance in water distribution and large industrial networks. Designed for extended service life, these DBV10 Double Eccentric Butterfly Valve units combine advanced low-torque geometry with robust construction to meet the critical demands of superior valve applications
Production Standard
Nominal Dimension (DN)
Nominal Pressure (PN)
Operating Temperature
Design
Face to Face
Connection
Coating
Testing
DN 80 – DN 2600
PN 6-PN 10-PN 16-PN 25-PN 40
-30° / +200°
EN 593
EN 558 Series 14 – DIN 3202 F4
EN 1092-2 ISO7005-2 Flanged
Electrostatic Powder Epoxy
EN 12266-1
Operation Versions
The DBV10 Double Eccentric Butterfly Valve can be operated with a range of compatible accessories to suit different installation and automation requirements:
1. DVA10 Surface Box & Extension Spindle
2. DVA11 Telescopic Extension Spindle
3. DVA12 Electric Actuators
4. DVA13 Pneumatic Actuators
5. DVA14 Gear Box
6. DVA15 HandWheel
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 DBV10 Double Eccentric Butterfy 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 butterfly valve ensures precise fluid control, maintains excellent sealing integrity, and supports efficient, safe operation even under demanding conditions.
The DBV10 Double Eccentric Butterfly Valve is a high-performance isolation and regulation solution engineered for precise and dependable fluid control in municipal and heavy industrial systems. Designed for modern infrastructure, this valve delivers exceptional sealing, reliability, and long-term durability in industrial and municipal applications.
At the core of the DBV10 Double Eccentric Butterfly Valve is the double eccentric design, offsetting the disc shaft from the bore and body centreline. This advanced geometry ensures the disc lifts immediately from the seat upon opening, drastically reducing friction and extending seal life. This results in smooth, low-torque operation and guarantees a tight, bubble-tight shut-off, making it an ideal control valve even under high-pressure conditions.
Manufactured from high-grade, corrosion-resistant materials and a robust, ductile iron body, this DBV10 Double Eccentric Butterfly Valve withstands harsh operating environments. The eccentric movement prevents disc rubbing until the final degrees of closure, ensuring minimal wear and superior sealing performance. Its compact size allows easy integration, minimizing downtime and operational costs.
The DBV10 Double Eccentric Butterfly Valve is ideally suited for large water distribution networks, power generation cooling water systems, and demanding HVAC installations, where leak-free operation is essential. Its specialized design makes it a versatile control solution and a preferred selection for engineers seeking a high-performance, standards-compliant valve for long-term infrastructure investment.
In summary, the DBV10 Double Eccentric Butterfly Valve offers a perfect combination of high performance, efficiency, and safety. With its precision-engineered double eccentric mechanism, durable construction, and superior sealing system, this unit stands as a trusted solution for modern, high-demand fluid control applications worldwide.
1. General Information
The DBV10 Double Eccentric Butterfly Valve is designed for use in various distribution and industrial networks, requiring reliable shut-off and control. Proper installation is essential to ensure safe operation, long service life, and leak-free performance.
2. Safety Precautions
Installation must be performed by qualified personnel only.
Ensure compliance with all local safety regulations and standards.
Wear appropriate personal protective equipment (PPE).
Confirm that the pipeline is depressurized and drained before installation of the DBV10 Double Eccentric Butterfly Valve.
3. Pre-Installation Checklist
Inspect the DBV10 Double Eccentric Butterfly Valve for any visible damage during transport or storage, especially to the disc edges and seal.
Check that the valve type, size, and pressure rating match the system requirements.
Verify that the valve is clean and free from debris.
Confirm that the pipeline flanges are properly aligned (parallel and concentric) and free from sharp edges that could damage the seal.
Ensure sufficient space is available for operation and maintenance.
4. Installation Procedure
Positioning: Install the DBV10 Double Eccentric Butterfly Valve between the flanges with the disc in the partially open position (10° to 20° open) to protect the seat during insertion. Note any specified flow direction, although the valve is typically bi-directional.
Pipeline Preparation: Ensure the pipeline flanges are clean. Use proper gaskets suitable for the medium and operating conditions, positioned carefully.
Mounting the Valve: Align the DBV10 Double Eccentric Butterfly Valve with the pipeline flanges. Insert bolts and tighten them crosswise in gradual, incremental steps to ensure even compression of the gaskets. Do not use excessive force that may damage the valve.
Operational Check: Slowly cycle the valve fully open and fully closed to confirm smooth, low-torque operation. Ensure the valve closes tightly without leakage.
5. Post-Installation
Slowly pressurize the system and check for leaks around the connections.
If leakage is detected, depressurize and re-tighten the bolts in the cross-pattern sequence.
Record the installation details for documentation.
Proper maintenance extends the service life of the DBV10 Double Eccentric Butterfly Valve and ensures reliable performance. Follow the guidelines below to maximize the longevity of this industrial unit.
1. Routine Operation
Operate the DBV10 Double Eccentric Butterfly Valve (open/close) periodically to prevent seizure and buildup of deposits on the sealing surfaces.
Avoid using the valve for throttling, as it is designed for on/off service.
2. Inspection Schedule
Monthly: Check for external leaks around body joints, stem packing, and flange connections.
Quarterly: Operate the valve fully open and fully closed to verify smooth operation.
Annually: Perform a detailed inspection including seals, stem, and coating condition.
3. Lubrication
If applicable, lubricate the stem nut or gearbox according to manufacturer’s recommendations.
Ensure moving parts remain free of dirt and corrosion.
4. Seal and Gasket Replacement
Replace stem seals, O-rings, and gaskets if leakage or wear is observed.
Always depressurize and drain the pipeline before performing any maintenance work on the control valve.
Only use original spare parts to guarantee compatibility and reliability.
5. Cleaning
Keep the exterior of the DBV10 Double Eccentric Butterfly Valve clean to prevent corrosion.
In aggressive environments, consider applying additional protective coating or insulation.
6. Storage and Spare Parts
Store spare parts in a dry, clean environment, away from direct sunlight.
Maintain a record of all inspections, repairs, and replacements performed on the DBV10 Double Eccentric Butterfly Valve.
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 DBV10?
What are the main advantages of this valve?
The DBV10 Double Eccentric Butterfly Valve offers low-torque operation, exceptional sealing performance due to minimal seat wear, and is highly versatile for both isolation and modulation tasks. Its robust design makes it an effective control solution and high-integrity shut-off unit.
Why should I choose this product?
This valve delivers outstanding performance in both sealing and durability, making it a dependable choice for demanding applications, particularly large-diameter pipelines. Its double eccentric design ensures reliable, long-term operation with significantly reduced maintenance compared to conventional butterfly valves.
What is the benefit of the Double Eccentric Butterfly Valve design?
The double offset design causes the disc to ‘cam’ out of the seat quickly upon opening. This minimizes rubbing and friction, greatly extending the life of the seat seal and resulting in a much lower operating torque for the valve.
Can this valve be used for throttling purposes?
Yes. Due to its robust shaft support and reduced friction design, the DBV10 is highly effective for flow regulation. Its ability to regulate flow precisely makes it suitable for many modulating applications in demanding systems.
Which standards does this Double Eccentric Butterfly Valve comply with?
The DBV10 Double Eccentric Butterfly Valve is typically manufactured in compliance with major international standards such as EN 593 and is designed to meet the flange drilling standards (e.g., ISO, ASME, DIN) required for reliable integration into any infrastructure network.
Contact Devinsan
Reach out to our team for inquiries, quotes, and technical assistance