41 01 52.13
Storage Bin and Hopper Cleaning
41 01 52
Operation and Maintenance of Bulk Materials Storage
41 01 00
Operation and Maintenance of Material Processing and Handling Equipment
40 97 00
Variable Frequency Drives
40 96 00
Saturable Core Reactors
40 95 00
Rotary Actuators
40 94 00
Self-Contained Pressure Regulators
40 93 00
Linear Actuators and Positioners
40 92 00
Self-Contained Flow Controllers
40 91 26
Specialty Primary Control Valves
40 91 23
Solenoid Primary Control Valves
40 91 19
Pneumatically-Operated Primary Control Valves
40 91 16
Hydraulically-Operated Primary Control Valves
40 91 13
Electrically-Operated Primary Control Valves
40 91 00
Primary Control Valves
40 90 00
Primary Control Devices
40 80 00
Commissioning of Process Systems
40 79 66
Instrument Valve Manifolds, Valves, and Fittings
40 79 63
Instrument Tubing
40 79 46
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