Technical overview of threaded & union flexible hoses

In industrial piping systems, connecting rigid pipe sections in confined spaces or areas with high machinery vibration always requires flexible technical solutions. Threaded & union flexible hoses, custom-fabricated by Tan Dat Flex directly at our Vinh Loc workshop, are specialized devices designed to meet these needs. The product structure consists of a high-pressure corrugated stainless steel inner hose, covered by an outer metal braided layer to enhance mechanical durability. Both ends are integrated with flexible thread connection types such as male thread, female thread, female cone seat thread, or union ends, making the connection to valves, pumps, or rigid pipes quick and secure.

Common thread connection types and fabrication specifications

To adapt to specific technical drawings and actual installation spaces, Tan Dat Flex produces a wide variety of connection ends:

Standard thread types: Including steel or stainless steel male or female threaded ends, serving common straight connection points.
Female cone seat thread and union: Providing high tightness, allowing for easy tightening without twisting the hose body during installation.
Special geometric combinations: Fabrication of one 90-degree elbow end combined with one straight end (e.g., DN20, DN25 sizes), extremely useful when needing to redirect piping in hidden corners or tight spaces.
Typical specifications: Product lines such as hoses with two steel female cone seat threaded ends (DN32 diameter, 500 mm length) undergo 100% pressure testing before leaving the factory.

Operational applications in M&E systems

Thanks to their expansion, excellent shaping flexibility, and the corrosion resistance of stainless steel material, our threaded flexible hose line serves effectively in various fluid environments:

Domestic and industrial water supply and drainage systems.
Small to medium pressure compressed air pipelines.
Steam systems and high-temperature heat transfer oil.
Low-concentration chemical pipelines.

The primary function of the hose is to dampen vibration forces generated by pumps and absorb stress caused by thermal expansion of the piping, thereby protecting valves and joints from leakage or cracking.

Selection experience and parameters required when ordering

Engineers and maintenance teams when ordering custom-fabricated threaded stainless steel flexible hoses at Tan Dat Flex need to accurately determine the following technical parameters to optimize operational efficiency:

Dimensions: Nominal diameter (DN) and total length of the hose section.
Connection type: Clearly specify the type (female thread, male thread, union, female cone seat thread) and angle configuration (straight end or 90-degree elbow end).
Construction material: Select the hose core and connection end materials suitable for the environment (plated steel, stainless steel 304, or stainless steel 316).
Working conditions: Provide information on maximum operating pressure, temperature, and characteristics of the internal fluid.

Contact us for custom stainless steel flexible hose fabrication in HCMC

With the advantage of a direct production workshop at D20/26F2 Vo Van Van, Hamlet 4A, Tan Vinh Loc Commune, Ho Chi Minh City, Tan Dat Flex proactively meets all orders for threaded & union flexible hose fabrication according to the exact dimensions and technical drawings of each project. For detailed technical advice, material selection, or to receive a quotation, please contact our technical team directly.