Tom Jenkins
Lifetime Supporting Member
First off, it is entropy that increases.
If you are doing some re-plumbing anyway, I would add top and bottom taps so you can add a DP transmitter if you want. There are a couple of things you can do to extend the life of the poor transmitter, even if you get one with high shock ratings.
First, a gauge snubber is simply an orifice that attenuates the pressure spike. Many of them are made of porous sintered metal, and are quite resistant to failure. They can, however, get plugged by dirt and slime and general crud, so you want to put an isolation valve between them and the pressure vessel so you can remove and replace them.
Second, a guage isolator is a diaphragm type device that keeps the process fluid away from the sensor. They don't have much damping ability, but might not be a bad idea. Red Valve and many others have them.
Finally, you could install an accumulator or attenuator, similar to the ones used in hydraulic system. Put one in each of the taps between the pressure vessel and the sensor, again with isolation valves. They are essentially like the water hammer attenuators a lot of people have in their basements, but obviously of heavier construction.
If you are doing some re-plumbing anyway, I would add top and bottom taps so you can add a DP transmitter if you want. There are a couple of things you can do to extend the life of the poor transmitter, even if you get one with high shock ratings.
First, a gauge snubber is simply an orifice that attenuates the pressure spike. Many of them are made of porous sintered metal, and are quite resistant to failure. They can, however, get plugged by dirt and slime and general crud, so you want to put an isolation valve between them and the pressure vessel so you can remove and replace them.
Second, a guage isolator is a diaphragm type device that keeps the process fluid away from the sensor. They don't have much damping ability, but might not be a bad idea. Red Valve and many others have them.
Finally, you could install an accumulator or attenuator, similar to the ones used in hydraulic system. Put one in each of the taps between the pressure vessel and the sensor, again with isolation valves. They are essentially like the water hammer attenuators a lot of people have in their basements, but obviously of heavier construction.