What factors determine the price of rubber expansion joints?

The price of the rubber sphere material is basically calculated by the use and use requirements.
The use is divided into many cases, such as the use environment, rubber expansion joints used indoors and outdoors will be very different, rubber in the role of sunlight, it is easy to aging, this time we should use the aging rubber, in this case, the cost of rubber joints will increase. There are also requirements of media, such as water, hot water, acid and alkaline water, oil, and some of them will be over soot, etc. Then we should use different components of rubber accordingly. According to the corresponding natural rubber, EPDM rubber, styrene-butadiene rubber, butyl rubber, nitrile rubber, neoprene rubber, silicone rubber, fluorine rubber and so on. Rubber with special ingredients is much more expensive than natural rubber, so the price of rubber joints will be very different.
The pressure will also have an effect on the price, so customers can choose to buy according to their needs.
The material of the flange is also different, and the price of the rubber soft joint is also different. Flange and stainless steel flange, cast steel flange, forging flange three, stainless steel flange and forging flange these two are better than the cast steel flange, the relative grit and quality is better, but the price is also more expensive. Product matching flanges are strictly follow the standard atlas on the size of the production of custom, so inevitably higher than those non-standard products in terms of price.