Different materials result in different designs.

The information you need, or equipment that you wish us to select for you, needs to reflect these differences.

The liquid contact parts do not have to include the pressure vessel shell - the expensive item. For example please see liquid in bladder dampeners and removable elastomer liner dampeners. Where you want the corrosion resistance of some high cost materials, these designs enable us to minimize the amount of it that has to be used.

The choice of membrane and seal material changes the cost. The higher the fluorine content results in higher cost, lower elasticity, and shorter flex life. Although Dupont "Viton" and 3M's "Fluorel" are good for seals, they should be a last choice for bladders and gas bags. We have 23 other elastomers for you to choose from, popular and ex-inventory items are Dupont "Hypalon", Buna Nitrile, and EP in descending order of cost.

We will suggest a material for you, when you provide the generic chemical name, not the trade name please. Trace amounts of other substances can have a dramatic effect of compatibility. These suggestions are just suggestions, the people who run the system, know better than we do, so please check with them.

The materials manufacturers have their own test data, as does NACE, for you to consult. We are not corrosion engineers.