DFT18 G MMR Reducer Piece

Devinsan provides high-performance fluid transition solutions engineered for precise diameter changes and hydraulic efficiency in water, wastewater, and industrial networks. Designed for exceptional durability, the DFT18 G MMR Reducer Piece combines a robust ductile iron body with optimized internal geometry to ensure seamless flow management and structural reliability across diverse pipeline infrastructures.

Production Standard

Nominal Dimension (DN)

Nominal Pressure (PN)

Operating Temperature

Coating

Testing

DN 50 – DN 400

PN 6-PN 10-PN 16-PN 25-PN 40

-30° / +200­­°

Electrostatic Powder Epoxy

EN 12266-1

Application Areas

The DFT18 G MMR Reducer Piece 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 DFT18 G MMR Reducer Piece ensures precise fluid control, maintains excellent sealing integrity, and supports efficient, safe operation even under demanding conditions.

The DFT18 G MMR Reducer Piece is a high-performance structural fitting specifically engineered for precise and dependable diameter transitions in water supply, wastewater treatment, and industrial fluid systems. Designed to meet the rigorous demands of modern infrastructure, this double-socket reducer delivers exceptional structural integrity, operational reliability, and long-term durability in both industrial and municipal applications.

At the heart of the DFT18 G MMR Reducer Piece is a robust, precision-cast EN-GJS-400-15 (GGG40) ductile iron body that facilitates a smooth transition between pipes of different nominal diameters. This advanced design ensures a stable, high-strength interface, effectively maintaining the pipeline’s hydraulic performance while ensuring a smooth flow and leak-free performance even under fluctuating flow conditions. The push-on socket configuration allows for secure integration, enhancing safety and efficiency in critical fluid networks.

Manufactured from durable, corrosion-resistant materials, this reducer piece is designed to withstand harsh operating environments and offer a long service life. Its standardized dimensions, ranging from DN63 to DN400, allow for easy integration into pipeline systems, while the straightforward installation process reduces downtime and operational costs.

The DFT18 G MMR Reducer Piece is ideally suited for municipal water distribution, chemical industry, food and beverage production, and HVAC systems where diameter adjustment and dependable operation are essential. Its versatility also makes it a preferred choice for engineers seeking a reliable, standards-compliant solution for long-term infrastructure performance.

In summary, the DFT18 G MMR Reducer Piece offers an optimal combination of performance, efficiency, and safety. With its precision-engineered transition system, durable construction, and ease of maintenance, it stands as a trusted solution for modern fluid control applications worldwide.

1. General Information

The DFT18 G MMR Reducer Piece is designed for use in distribution networks and industrial applications requiring reliable transitions between different pipe diameters. Proper installation is essential to guarantee safe operation, long service life, and efficient, leak-free performance within the pipeline system.

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.

Personnel must wear appropriate personal protective equipment (PPE) at all times during the process.

Confirm that the pipeline section is fully depressurized and drained before attempting to install the DFT18 G MMR Reducer Piece.

3. Pre-Installation Checklist

Inspect the DFT18 G MMR Reducer Piece for any visible damage to the socket ends or the protective coating sustained during transport or storage.

Check that the nominal sizes (D and d), pressure rating, and transition type match the system design requirements.

Verify that the interior and socket seating areas are clean and free from debris.

Confirm that the mating pipe ends are correctly chamfered and aligned. Ensure that high-quality gaskets and appropriate lubricants are available for assembly.

4. Installation Procedure

Preparation: Clean the socket interior of the DFT18 G MMR Reducer Piece and the pipe spigot thoroughly. Insert the appropriate gasket into the socket groove, ensuring it is properly seated without twists.

Lubrication: Apply a thin layer of approved pipe lubricant to the gasket and the pipe end to facilitate easy insertion. Mounting: Align the pipe with the DFT18 G MMR Reducer Piece socket. Push the pipe into the socket using a steady force until it reaches the required insertion depth. Repeat the process for the second socket end.

Final Alignment: Ensure the transition remains straight; while the socket joint allows for minor angular deflection, excessive misalignment must be avoided.

5. Post-Installation

Slowly pressurize the system and check for leaks around both socket connections. Personnel should carefully visually check all joints for any signs of weeping.

If leakage is detected, depressurize the system and re-verify the gasket seating and insertion depth.

Record the installation details for documentation purposes.

Proper maintenance extends the service life of the DFT18 G MMR Reducer Piece and ensures reliable sealing integrity during testing and isolation periods. Follow the guidelines below to maximize the longevity of this essential unit.

1. Routine Operation

Visually inspect the DFT18 G MMR Reducer Piece area regularly, for example annually, for signs of external leakage or soil movement around the joint. As a static component, the DFT18 G MMR Reducer Piece requires no internal operation; ensure the surrounding environment remains clear for inspection.

2. Inspection Schedule

Monthly: Check for any signs of water surfacing above the buried fitting which may indicate a joint issue.

Quarterly: Check the ground surface for signs of settling or movement caused by axial thrust at the transition point.

Annually: Perform a detailed inspection including the condition of the visible coating and structural integrity.

3. Lubrication

The DFT18 G MMR Reducer Piece is a mechanical connection device and requires no lubrication after the initial installation.

Lubrication is only used during the push-on assembly process to ensure proper seating of the gaskets.

4. Seal and Gasket Replacement

Replace gaskets if leakage or significant wear is observed.

Always depressurize and drain the pipeline before performing any maintenance work. Only use original spare parts to guarantee compatibility and reliability.

5. Cleaning

Keep the exterior of the reducer piece 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.

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 DFT18?

What are the main advantages of this product?

The DFT18 G MMR Reducer Piece offers high structural stability, optimized transition geometry, and maximum sealing performance. Its robust EN-GJS-400-15 (GGG40) ductile iron construction and maintenance-free design help reduce operating costs and ensure long-term reliability in diameter-changing applications.

This product delivers outstanding performance in both structural integrity and hydraulic efficiency, making it a dependable choice for diameter transitions in pipelines. Its high-quality coating protects against corrosion, ensuring reliable operation over time in various industries such as chemical, food, or oil and gas.

The reducer features standardized double-socket interfaces for secure push-on integration. Before installation, the pipe ends and socket interiors should be cleaned and gaskets correctly positioned. The pipe is then lubricated and pushed into the socket until seated.

This model is manufactured using high-grade GGG40 ductile iron in accordance with international quality standards to meet global infrastructure requirements. Its material and protective coating meet market expectations for corrosion resistance and durability, making it suitable for municipal and industrial facilities.

Yes, the DFT18 G MMR Reducer Piece is designed for water systems, chemical plants, pharmaceutical production, and even oil and gas pipelines. Its rigid construction ensures that the connection point remains stable and leak-free regardless of the industrial medium.

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