In high-pressure hydraulic systems
nylon resin tubes are gradually becoming the ideal replacement for traditional rubber hoses. Their core advantages stem from a unique composite structure design: the inner layer uses nylon (PA) material, the middle layer is reinforced with high-strength industrial fibers or steel wire braiding, and the outer layer is covered with polyurethane elastomer.

This structure endows nylon resin tubes with outstanding performance. Their oil resistance is more than 5 times higher than that of traditional rubber hoses, making them particularly suitable for oil-pressure environments. Additionally, their pressure-bearing capacity per unit weight is stronger, with tube weight reduced by approximately 30%, contributing to equipment lightweighting. The smooth inner wall (roughness controlled below Ra0.8μm) effectively reduces power loss during fluid transmission. Under the same working conditions, energy transmission efficiency is 12%-15% higher than traditional rubber hoses.

Typical application areas include: automotive power steering and braking systems, hydraulic systems for construction machinery (excavators, loaders), mining machinery, machine tool hydraulic control, and emerging energy storage liquid cooling circulation pipelines.

PU Polyurethane Steel Wire Hoses and Plastic Rein Hoses: Reliable Protection for Abrasive Conveying

For scenarios requiring suction and conveying of solid particles, dust, or gases, PU polyurethane hoses have become the industry's preferred choice due to their excellent wear resistance and flexibility. Among them, steel wire reinforced hoses and plastic rein hoses are the two main categories.

PU polyurethane steel wire hoses

(also known as PU steel wire suction hoses) feature a galvanized steel wire spiral as the skeleton, with the tube wall made of thermoplastic polyester TPU. This design offers excellent wear resistance (10 times higher than natural rubber), anti-aging properties, and high tensile strength. The completely smooth inner wall ensures unobstructed material flow, with a temperature range typically from -15°C to +100°C and diameters available from 38mm to 300mm. They are widely used in woodworking router dust collection, factory dust removal, and granular material conveying.

PU polyurethane plastic rein hoses use hard PVC or polyurethane

spiral plastic reinforcement, combining lightweight construction with high flexibility. They are more than 5 times more wear-resistant than ordinary PVC hoses. The completely smooth inner wall and compliance with food-grade requirements (phthalate-free) for certain materials make them suitable for food processing, hygiene industries, ceramics, and mining where heavy abrasive materials are conveyed. Temperature range reaches -40°C to +80°C.

Nylon Resin Pressure Measurement Hoses: Flexible "Sensors" for Precision Testing

In the field of hydraulic system pressure monitoring, pressure measurement hoses play a critical role in accurately transmitting pressure. Nylon resin pressure measurement hoses use PA-11 or PA-12 nylon resin for the inner layer, super-strong aramid fibers for the reinforcement layer, and polyurethane for the outer layer. The smooth inner wall results in low fluid resistance, and the pressure-bearing layer is uniformly stressed with minimal elongation, ensuring precise pressure transmission.

These hoses can achieve working pressures of 40-64MPa (for 2-3mm diameter specifications) and feature small minimum bending radii, making them easy to install in compact spaces. They solve the problem of early polyester-reinforced pressure hoses that were prone to kinking, significantly extending service life. They are the preferred choice for testing pressure at various points in hydraulic systems and connecting pressure gauges and other instruments.

Ultra-High Pressure Cleaning Hoses: The Powerful "Arteries" of Industrial Cleaning

Industrial cleaning, especially high-pressure water jet cleaning, imposes extreme demands on hose pressure-bearing capacity and safety. Ultra-high pressure resin cleaning hoses typically feature nylon (PA) as the inner layer, multiple layers of wound high-strength steel wire as reinforcement, and a wear-resistant polyurethane (TPU) outer layer, with an operating temperature range of -40°C to 100°C.

Advanced manufacturers' ultra-high pressure hoses can reach working pressures of 320MPa (approximately 3,800 bar) with burst pressures as high as 800MPa, and safety factors generally reach 2.5 to 3 times, ensuring operational safety under extreme conditions. These products are widely used in hydraulic demolition, surface treatment of equipment, and petrochemical facility cleaning in harsh environments.

TPV Rubber Hoses: Ideal Solutions for High-Temperature Pneumatic Conveying

Thermoplastic vulcanizate (TPV) hoses combine the high elasticity of rubber with the easy processability of thermoplastics. TPV rubber hoses are typically reinforced with spiral steel wire, with the tube wall made of TPV material. They are free of plasticizers and halogenating agents, resistant to ozone and UV radiation, and exhibit good air tightness.

Their outstanding advantage lies in high-temperature resistance, with an operating temperature range of -40°C to +130°C, and short-term tolerance up to +150°C. This makes them ideal for suctioning steam, conveying hot and cold air from engines, and for compressed air and gas delivery in paint booths, nuclear power plants, and other high-temperature or demanding environments.

Conclusion

From high-pressure hydraulic systems to precision pressure measurement, from heavy dust material conveying to high-temperature gas transmission, different hose materials each have their strengths. As a professional hose manufacturer, we are committed to providing matched fluid connection solutions for every industrial scenario. For further assistance with selection details, please contact us for professional technical support.