Yes, the size of the expansion tank is very important for reciprocating compressors. Manufacturers usually choose the size of the tank to ensure optimal operation of the compressor. A larger tank for a reciprocating compressor will provide a greater supply of compressed air, but will not solve the problem when the compressor has too low capacity. In the case of screw compressors - the size of the tank is not important as they are designed for continuous operation and the tank is to allow smooth operation of the compressor so that it does not reach the maximum pressure too early. For screw compressors, the expansion tank should be selected according to the compressor power. For compressors with inverter, the expansion tank is often redundant when the compressed air installation is large enough to ensure smooth operation of the compressor.