DDJ10 Dismantling Joint
Devinsan offers engineered connection solutions designed for rapid integration, simplified pipeline maintenance, and guaranteed leak-free anchoring of flanged equipment. Designed for long service life, these DDJ10 Dismantling Joint units combine wide telescopic adjustment with robust sealing to meet the critical demands of modern infrastructure alignment and repair.
Production Standard
Nominal Dimension (DN)
Nominal Pressure (PN)
Operating Temperature
Connection
Coating
Testing
DN 40 – DN 2600
PN 6-PN 10-PN 16-PN 25-PN 40
-30° / +200°
EN 1092-2 ISO7005-2 Flanged
Electrostatic Powder Epoxy
EN 12266-1
Application Areas
The DDJ10 Dismantling Joint 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 DDJ10 Dismantling Joint ensures precise fluid control, maintains excellent sealing integrity, and supports efficient, safe operation even under demanding conditions.
The DDJ10 Dismantling Joint is a high-integrity fitting engineered for the rapid, simple installation and removal of flanged pipeline equipment, such as pumps, valves, and meters. Designed to meet the demands of modern infrastructure, this joint delivers exceptional sealing performance, operational flexibility, and long-term durability in critical water and wastewater systems.
At the heart of the DDJ10 Dismantling Joint is its telescopic sleeve and double flanged adapter design, which accommodates significant longitudinal adjustment. This advanced design ensures easy installation by bridging wide gaps and simplifies maintenance by providing sufficient space for future component removal. The robust internal sealing gasket guarantees a tight, leak-free connection, effectively preventing fluid loss even under varying system pressures.
Manufactured from corrosion-resistant materials and built with a robust, ductile iron body, the DDJ10 Dismantling Joint is designed to withstand continuous pressure and challenging burial environments. Its precise engineering ensures quick and positive alignment of the mating flanges, reducing stress on connected components. This feature minimizes the long-term maintenance needs and reduces the potential for costly pipeline downtime.
The DDJ10 Dismantling Joint is ideally suited for applications in municipal pump houses, water treatment plant manifolds, and industrial flow control systems where equipment needs regular maintenance or replacement. Its versatility and reliable performance make it a preferred choice for engineers and project managers seeking a simple, standards-compliant solution that significantly shortens installation and repair times.
In summary, the DDJ10 Dismantling Joint offers an optimal combination of performance, installation speed, and maintenance convenience. With its wide-range telescopic adjustment, durable construction, and secure sealing system, this unit stands as a trusted solution for modern infrastructure connection requirements worldwide.
1. General Information
The DDJ10 Dismantling Joint is designed for the safe and simple installation of new flanged equipment into existing pipeline systems. Proper installation is essential to guarantee safe operation, long service life, and sustained 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 DDJ10 Dismantling Joint.
3. Pre-Installation Checklist
Inspect the DDJ10 Dismantling Joint for any visible damage during transport or storage.
Check that the joint type, size, and pressure rating match the system requirements.
Verify that all sealing surfaces are clean and free from debris.
Confirm that the mating flange faces on the pipeline and component are properly aligned and parallel. Ensure sufficient space is available to operate the joint’s tie-rods and insert the component.
4. Installation Procedure
Positioning: Insert the DDJ10 Dismantling Joint into the gap between the two pipeline flanges or between the pipe flange and the flanged component (e.g., pump, valve). Adjust the joint’s telescopic feature to align with the mating flanges, ensuring the joint is centred.
Insert the bolts through the flanges and secure the tie-rods, tightening them sequentially and evenly to compress the rubber gasket. Ensure the final tightening torque is applied in a cross-pattern to achieve a uniform, bubble-tight seal.
5. Post-Installation
Slowly pressurize the system after installation and carefully check for leaks around the flange connections and the internal gasket area. If leakage is detected, depressurize the system immediately and re-tighten the tie-rods using the specified torque values. Record the installation details, date, and final torques for documentation purposes.
Proper maintenance extends the service life of the DDJ10 Dismantling Joint and ensures reliable performance. Follow the guidelines below to maximize the longevity of this essential unit.
1. Routine Operation
Inspect the DDJ10 Dismantling Joint externally at least semi-annually for signs of external corrosion or visible joint movement beyond specification. Periodically check the tightness of the tie-rods to ensure the joint compression is maintained, particularly after initial settling or pressure cycling.
2. Inspection Schedule
Monthly, check the joint exterior for signs of external leakage, especially around the gasket sealing area. Quarterly, inspect the exposed metal surfaces of the tie-rods and flanges for corrosion or coating damage. Annually, perform a detailed inspection of the tie-rod integrity and overall joint alignment.
3. Lubrication
The DDJ10 Dismantling Joint does not require internal lubrication. However, external thread lubrication (e.g., grease) should be applied to the tie-rod nuts before final tightening to prevent seizing and ensure accurate torque application.
4. Seal and Gasket Replacement
The primary sealing gasket should only require replacement if persistent leakage occurs or if the connected equipment is being replaced. Always depressurize and drain the pipeline thoroughly before attempting to loosen the tie-rods or access the gasket. Only use original spare parts to guarantee perfect compatibility and long-term reliability.
5. Cleaning
Keep the exterior of the DDJ10 Dismantling Joint clean to prevent surface corrosion, which can be accelerated by environmental factors or buried conditions. In aggressive burial environments, confirm that the protective coating remains intact and consider applying supplemental protection if necessary.
6. Storage and Spare Parts
Store spare parts (gaskets, seals) in a dry, clean, and cool environment, away from direct sunlight and harsh chemicals. Maintain a detailed record of all inspections, repairs, and replacements performed on the DDJ10 Dismantling Joint 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 DDJ10?
What are the main advantages of this product?
The DDJ10 Dismantling Joint offers crucial flexibility for maintenance by providing variable length adjustment, simplifying the installation and removal of in-line equipment such as pumps and flow meters. Its design ensures a reliable, permanent seal after reassembly.
Why should I choose this product?
This product 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 primary function of the DDJ10 Dismantling Joint?
The primary function is to bridge gaps between flanges and to allow longitudinal movement, which simplifies the assembly and disassembly of flanged components in a rigid pipeline system, ensuring that maintenance access is quick and precise.
Can the DDJ10 Dismantling Joint absorb pipeline movement?
While the DDJ10 Dismantling Joint allows for initial installation flexibility and longitudinal adjustment, it is not designed to permanently absorb large movements (like seismic or thermal expansion). It primarily secures the installation alignment.
How is a watertight seal achieved?
A watertight seal is achieved by tightening the tie-rods, which compresses a wide internal rubber sealing gasket between the central sleeve and the end flanges, locking the DDJ10 Dismantling Joint in its final, secured position.
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