RobertCasey
Mechanical
- Feb 1, 2002
- 30
I am looking at a project that will use a long ram tube (about 200mm dia and 80m long) that has a 50-60mm wide slot along the length. The tube will contain a "bullet" which acts as a piston plate. An armature passes through the slot. I need to find some kind of sealing system so that as pressurised water is pumped into the tube behind the bullet (at about 15N/mm2), it seals the slot behind it as it slides along the tube. Ultimately the bullet will reach speeds in excess of 50m/s. Can anyone point me towards a suitable sealing system, I cannot find anything on the internet or on seal manufacturers web pages. Thanks