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What are the technical requirements for peristaltic pump silicone hose?

Publish Time: 2023-03-07     Origin: Site


What are the technical requirements for peristaltic  pump silicone hose?



Technical requirements for peristaltic pump silicone hose


1. Scope of peristaltic pump silicone hose


This standard stipulates the technical requirements of the silicone pipe for car peristaltic pumps.


This standard is suitable for car peristaltic pump silicone tubing.


2. Creating standards for peristaltic pump silicone tubing


GB/T528-1998 Slip in the stress stress stress stress on rubber or thermoplastic rubber


GB/T531-1999 Rubber Pocket Hard Hard Terring Input Hardness Test Method


GB/T1690-1992 Test method of vulcanized rubber resistance


GB/T3512-1983 Test method


GB/5563-1994 rubber, plastic hose and hose composition hydraulic test method


GB/T7759-1996 vulcanized rubber, thermoplastic rubber at room temperature, high temperature, and low compression permanent deformation determination


3. Technical requirements for peristaltic pump silicone tubing


3.1 Product structure


The rubber tube composed of fabric layer and silicon rubber is strengthened. The material of the fabric layer is the aromatic polyamide fiber. The inner and outer surface of the fiber cloth is completely impregnated with silicon rubber complexes, and each layer is evenly distributed. The thickness of the fabric layer is 0.4mm, 0.5mm, and the nominal mass is 150g/m2. Products should be continuously used at 250 ° C and intermittently used at 300 ° C.


3.2 appearance


There are defects such as foaming, cracks, local bumps, etc.:


3.3 Physical and mechanical properties of glue


The physical mechanical properties of rubber refer to the requirements of Table 1.


3.4 Pipe performance


3.4.1 Product hardness: 


at 23 ± 2 ℃, Shaoer A's hardness is 60 ± 5 degrees.


3. 4. 2 Blasting pressure: 


Products must be able to withstand 1.2MPa blasting pressure.


3. 4. 3 High temperature performance: 


168H is placed at 250 ° C. There should be no cracks and faults in the inner surface and outer surface. Place 168h at 300 ° C, and cracks should not occur or break in the inner surface and outer surface.After 250 ° C × 168h, the blasting pressure is not less than 1.2MPa.


3.4.4 Low -temperature elasticity:


 Place 4h at -55 ° C, quickly compress the radial direction to 50%, and cracks should not occur in the inner surface and surface.


3.4.5 intervertebral bonding: 


When it is opened at a rate of 50mm/min, the bonding force of the inner and outer layer should be ≥1.75kn/m.


3.4.6 Anti -ozone properties: 


Place 70h in an ozone atmosphere with a concentration of 50 ± 5ppbm and a temperature of 40 ° C,Observe the surface with twice the magnifying glass, there is no obvious visible crack on the surface


3.4.7 Compression performance: 


The glue tube after high temperature test is compressed to 50%along the radial rate at a rate of 50mm/min, and cracks should not occur or break in the inner surface and outer surface.


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