Atlas copco are very expensive, so have a look on the web first. Have a look on google !!! Motair offer Air motors and the technical assistance is very good when I've dealt with them. Depending on size, you could try SPX Fluid Power(Formerly Fenner)
The company I work for manufacture Air Motors and we are currently working towards category 3. However, we are finding that that most other Air Motor manufacturers & related products have not obtained approval yet either.
When you speak to the sales departments, most have not even heard of ATEX...
Has anyone come across ATEX yet ? It for equipment used in a potentially explosive atmospheres. Any relevent information would be useful or perhaps some websites.
There are fittings and there are fittings !!!
Ensure you have used the correct material as well, Galvanic corrosion may be a long term issue. Why not try a better quality fitting such as Parker or even better Swagelok. I have seen the latter last even the most testing of applications.
Also...
