There are some possibilities to this stem bending.
1) Stem was not properly installed and causes it to bend
2) Stem size is too small or wrong selection of stem material(weak) which the actuator force causes it to bend, please check actuator sizing.
3) Over supply of air pressure to the...
I believe a sliding stem control valve with noise-attenuation trim will be able to solve your problem. The trim will bring down the noise to low level but it has one downside which there should have no particles which could clog the cage. Better to install a filter upstream for it.
Look for...
