Small Size Double Flange Force Tranfer Dismantling Joint

## Key Features and Benefits

**Robust Force Transmission Capability**  
The dismantling joint effectively transfers axial thrust from connected equipment such as pumps and valves to the entire pipeline system, preventing concentrated stress that could otherwise damage equipment components. The high-strength tie rods and tightening bolts ensure rigid end-load-resistant connections capable of withstanding substantial operational forces and cyclic loads.

**Large Diameter Capacity**  
This product is available in nominal diameters ranging from DN65 up to DN3200, with custom sizes reaching DN4000 upon request, adequately accommodating the requirements of large-scale water treatment plants, power generation facilities, and industrial processing pipelines.

**Multiple Pressure Ratings**  
Standard products are offered in working pressure classes of 0.6MPa, 1.0MPa, 1.6MPa, and 2.5MPa, with high-pressure versions up to 4.0MPa available for demanding applications, ensuring suitability across diverse medium conveying systems.

**Versatile Material Selection**  
Materials can be flexibly selected based on specific operating conditions. Ductile iron grades such as QT400-15, QT450, and GGG500-7 offer cost-effective solutions for general water and wastewater applications. Carbon steel grades including Q235A and Q345 provide higher strength for demanding industrial environments. Stainless steel grades 304 and 316 deliver excellent corrosion resistance for aggressive media or marine service conditions.

**Convenient Installation Adjustment**  
The product provides 40 to 80 millimeters of axial adjustment range (increasing with larger diameters), effectively compensating for longitudinal installation deviations. This feature greatly facilitates the mounting and dismounting of valves, pumps, and other flanged equipment, while significantly simplifying maintenance procedures and future pipeline modifications.

**Wide Flange Standard Compatibility**  
The flange connection dimensions are compatible with multiple international standards, including GB/T 9115 (Chinese standard), DIN (German standard), JIS (Japanese standard), and ANSI (American standard). Custom flange drilling patterns are also available upon request.

**Reliable Sealing Performance**  
The sealing elements are manufactured from NBR (nitrile rubber), which achieves reliable static sealing between the telescoping pipe and the main body through elastic deformation under compression. This ensures leak-tight performance when conveying water, sewage, oil, and various other media.

## Technical Performance Specifications

Nominal diameter ranges from DN65 to DN3200, with custom options up to DN4000. Working pressure covers PN0.6 through PN4.0MPa. Body materials are available in ductile iron, carbon steel, or stainless steel. Standard sealing material is NBR. The standard operating temperature range is from negative 40 degrees Celsius to 80 degrees Celsius, with steam service capability up to 250 degrees Celsius. Applicable media include water, seawater, sewage, oil, air, gas, steam, and weak acids or alkalis. Manufacturing complies with GB/T 12465 standards.

## Application Fields

The Large Size Double Flange Force Transfer Dismantling Joint is widely employed in water supply and drainage systems, including pumping stations, water treatment plants, and sewage treatment facilities. It is also extensively used in power generation applications such as thermal power plants and hydroelectric facilities. In the petrochemical and industrial sectors, it serves oil and gas pipelines, chemical processing plants, and metallurgical operations. Marine and coastal applications include seawater intake and outfall systems as well as offshore platforms. Infrastructure projects such as municipal pipelines, large-scale building services, and utility tunnels also rely on this product.