The introduction of coffee from South America bring us a drink that refresh ourselves. While the introduction of coffee machine make it easier to drink a cup of coffee. That’s to say, it saves much of time. However, the coffee machine works in high pressure and high temperature conditions. Therefore, there is only one hose can meet the requirements, that is silicone braid hose. Besides, silicone braid hose meet the requirements of FDA. This time let’s learn how to improve the pressure resistance.
So far, the pressure resistance of coffee machine is 3.5Mpa. But the silicone hose can’t meet the requirements. Then we should reinforce the hose with wire braid. The pressure from coffee machine transferred to the fabric, then the fabric transfer the pressure to other fibre because of the new structure. Last, the pressure transfers to the hose cover. Therefore, the pressure circulates among these three parts. However, the pressure resistance has upper limit. The burst pressure should be less than 4.5Mpa, while 2.5-3Mpa is better.
With this process, the burst pressure could be higher to 3.8Mpa. The secondary vulcanize makes the silicone braid hose will shrink and fit closely. Then the pressure resistant points becomes more even and there will not be burst.
Size of silicone hose
Coffee machine hoes has higher pressure resistance because there is less water goes through it. Normally, the larger the size is, the higher pressure it can bear.
In general, the wall thickness of silicone braid hose could be 2mm, 2.5m and 3mm. A bigger wall thickness will greatly improve the pressure resistance.
From the analyze above we can see there are mainly 4 factors that affect the pressure resistance of silicone hose. OrientFlex is an expert in hoses. With the certificate of FDA and great properties, our silicone hose has been exported to all over the world. We know your market well and will offer you the best solution. Contact us now and get the latest news.