# Operazioni Code Description
41 KB Reciprocating compressors (diaphragm)
42 KC Screw/rotary compressors
43 KL Axial compressors
44 HP Cooling tower (induced draft)
45 KD Blowers
46 KE Fans
47 KP Reciprocating compressor (piston)
48 PN canned motor pump
49 PA Centrifugal (horizontal or vertical in line)
50 PB Reciprocating
51 GV Circulating pump
52 PG diaphragm pump
53 PV Vacuum pump
54 PD Metering pump
55 PC Rotary/gear/screw/sliding vane
56 PH Submersible pump with external driver
57 PS Submersible pump with submersible motor
58 MS Steam turbine
59 MT Gas turbine
60 MD Diesel engine