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In the use of the need to do the detection of the use of silicone rubber before the pump?
In the use of a silicone rubber pump must be done before all aspects of testing, otherwise it will damage the use of silicone hose, the following is a brief introduction of the 4 aspects of the detection:
1, in the detection of the silicone rubber hose size, we first have to look at the appearance, observe whether there are bubbles, impurities, black spots, etc., once there are these, it will affect its service life, and secondly is to detect the size, size precision, directly affect the flow of the pump, the flow is mainly determined by the diameter of the hose, the greater the flow, the greater the flow. Outer diameter or wall thickness will eventually affect the life of the hose, wall thickness beyond the conventional tolerance, the hose will appear hard, which will eventually affect the operation of the pump body.
2, test peristaltic pump of silicone tube wear resistance, resistance to fatigue, elastic resilience, recommended limit test method for the maximum speed of the peristaltic pump speed adjusted, conveying weak corrosive fluid, daily attention to observe the traffic changes in the peristaltic pump, start in a row, the hose is not damaged, the flow changes is not obvious, indicating that the hose of the resilience and resistance fatigue resistance and wear resistance is very good.
3, test the resistance of the silicone rubber hose of the test, corrosion resistance. Take a kind of tube, its weight and internal and external diameter and length parameter record, hose immersion in a glass beaker, 72 hours after take off hoses, with clean water, drying and re measured the weight, inner and outer diameter and length, to observe the changes in. By the way hose checking whether become soft, brittle, pale, and rupture and so on, phenomenon. If there is any change, that is the influence of the liquid chemical hose, the pump has a poor corrosion resistance, aging resistance. Each candidate should pump the sample in the actual environmental conditions of the factory under the test run, and closely observe the test results. If the pump in test run not fade, swelling, cracking, loss of liquidity, or other signs of deterioration, the pump has excellent chemical stability.
4, the last is the need for the LFGB, such as FDA, VI, CLASS, and so on.
This paper is from Shenzhen,, id=563?
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