Comparison between double-acting and single-acting pneumatic cut-off valves
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Apart from the difference in having a spring versus no spring affecting the failure location, are there any specific comparisons in other aspects such as failure rate and air consumption?
They are all set according to the requirements of the manufacturing process, I guess.
Double-acting cut-off valves can only be used for isolating and shutting off materials; they cannot serve as elements for safety interlock functions (unless an air storage tank is added). In terms of air volume, the capacity of double-acting valves is roughly twice that of single-acting actuators. In practical use, double-acting actuators require less maintenance – as long as the lubrication inside the piston is maintained regularly, there are generally no problems. With single-acting actuators, factors such as spring failures need to be taken into consideration