Grooved metal hose

Overview

The product has passed 5,000 pulse fatigue tests and extreme temperature cycle tests ranging from -196°C to 450°C. In special operating conditions, 316L ultra-low carbon stainless steel material can be selected, combined with an outer PTFE corrosion-resistant lining, making it suitable for the transportation of high-purity media in industries such as chemicals and pharmaceuticals. Typical application scenarios include: clean pipeline systems in pharmaceutical factories, food processing production lines, ship engine room piping, and auxiliary cooling systems in nuclear power plants—areas with stringent requirements for hygiene standards and reliability.







 

Features

The 304 stainless steel grooved metal hose is meticulously crafted from high-quality austenitic stainless steel material. Its unique corrugated tube structure endows the product with exceptional flexibility and fatigue resistance. The tube surface undergoes precision polishing to form a dense passivation layer, effectively resisting corrosion from acidic and alkaline media as well as chloride ion stress corrosion. The inner layer is finished with a food-grade polishing process, with surface roughness controlled to Ra ≤ 0.8 μm, ensuring no stagnation or contamination during fluid transmission.

The groove-type connection design employs hydraulic expansion technology, forming a mechanical self-locking structure through precision-machined annular grooves and matching clamps. Its tensile strength exceeds 1.5 times the pipeline burst pressure. This structure also offers quick disassembly and assembly advantages, allowing single-point connections to be completed in 30 seconds using only standard wrenches, saving 80% of installation time compared to traditional flange connections. The corrugated pipe section employs multi-layer hydraulic forming technology, with a working pressure range of 0.6–2.5 MPa and axial compensation capacity up to 20% of the pipe length, effectively absorbing displacement stresses caused by thermal expansion/contraction or mechanical vibrations in the pipeline system.  
 

Specification