News Detail

 

Many industrial procurement and maintenance personnel tend to focus entirely on rated pressure parameters when selecting ultra-high pressure transmission pipes, believing that as long as they can withstand ultra-high pressure, they can be directly used in oil-containing media scenarios. However, in actual scenarios such as oilfield production enhancement, heavy-duty hydraulic testing, and high-pressure transportation of specialty oils, many ordinary ultra-high pressure resin pipes exhibit significant swelling and softening of the inner layer within less than one month of operation. The pipe wall strength rapidly declines, ultimately leading to oil leakage and pipe bursts at pressures far below the rated operating pressure. This not only causes large-scale leakage of expensive oils but may also create on-site safety hazards.

 

The core value of oil-resistant ultra-high pressure resin pipes is not simply their ultra-high pressure transmission capacity, but rather their ability to maintain stable structural strength under long-term contact with various mineral oils, synthetic hydraulic oils, and specialty oils. They do not fail prematurely due to media corrosion, fundamentally reducing unplanned downtime and safety risks in oil-related ultra-high pressure scenarios.

 

Oil-resistant composite structure achieves synergistic oil resistance and ultra-high pressure performance.

 

Qualified oil-resistant ultra-high pressure resin tubing is specifically designed from the inner to the outer layer to meet the dual core requirements of "oil resistance + ultra-high pressure". The inner layer uses a special engineering resin modified for oil resistance, maintaining extremely strong chemical stability against various oil media such as different grades of mineral hydraulic oil, synthetic lubricating oil, and oilfield fracturing oil. Even after long-term immersion in oil media, it will not exhibit significant swelling, softening, or decomposition. No debris will detach from the inner wall and clog the precision ultra-high pressure valve assembly, completely eliminating any additional cleanliness risks to the entire ultra-high pressure system.

 

The middle high-strength fiber braided reinforcement layer is formed using a precision cross-winding process with high-modulus special synthetic fibers. Under rated ultra-high pressure, the tube elongation is controlled within 2%, preventing severe tube vibration under pressure and accelerated aging due to repeated stretching of the inner layer. The outer layer is made of oil-resistant and aging-resistant modified polyurethane material. Even with prolonged contact with spilled oil, it will not crack or become brittle, effectively protecting the internal fiber reinforcement layer from oily media and achieving full-body oil resistance.

 

Stable operation under all conditions, significantly reducing overall maintenance costs in oil-related ultra-high pressure scenarios.

 

In many oil-related ultra-high pressure operation scenarios, the average service life of ordinary ultra-high pressure resin pipes is only 1-2 months. Frequent pipe replacement not only consumes a lot of manpower, but the cleanup and material losses caused by oil leaks are often several times the cost of pipe procurement, and may also trigger on-site safety control responses.

 

Before leaving the factory, oil-resistant ultra-high pressure resin pipes undergo hundreds of hours of oil immersion verification and tens of thousands of ultra-high pressure pulse fatigue tests to ensure stable structural performance even under long-term contact with oily media. With targeted selection guidance, such as prioritizing oil-resistant, long-length models for high-pressure oilfield operations and high-pulse fatigue-level models for heavy-duty hydraulic test benches, the overall service life of pipes can be increased by more than 3 times, significantly reducing the frequency of on-site pipe replacements and greatly improving the overall operational stability of ultra-high-pressure oil operations.