How to distinguish the quality of suction pipe pressure layers: The quality of the pressure layer directly affects the lifespan and performance of the pipeline. Here are several key indicators to differentiate between good and bad pressure layers:

Main criteria:
1. Material quality
– High-quality pressure layers use high-strength synthetic fibers (such as polyester, nylon) or steel wire reinforcement
– Inferior products may use recycled materials or low-strength fibers

2. Structural design
– Good pressure layers have uniform structures with reasonable distribution of reinforcing layers
– Inferior products may have uneven distribution or inconsistent thickness of reinforcing layers

3. Pressure rating
– Check if the product’s marked working pressure meets actual needs
– High-quality products usually have clear and reliable pressure rating labels

4. Flexibility
– High-quality pressure layers maintain good flexibility under pressure
– Inferior products may be too hard or too soft

Testing methods:
1. Visual inspection
– Observe if the pressure layer is uniform and free from obvious defects or bubbles
– Check if reinforcing materials are evenly distributed

2. Pressure test
– Conduct an actual pressure test to observe deformation or damage at specified pressure
– High-quality pressure layers should maintain shape stability

3. Bending test
– Bend the pipe moderately and observe if the pressure layer shows cracks or delamination

4. Wear resistance test
– Check the wear resistance of the pressure layer surface; high-quality products should have good wear resistance

Purchase recommendations:
– Choose well-known brands or products with quality certifications
– Request suppliers to provide relevant test reports
– Select suitable pressure ratings based on actual usage conditions (such as conveyed medium, working pressure, etc.)

Although high-quality pressure layers may be more expensive, they significantly extend the pipeline’s lifespan and reduce maintenance costs.