Pipeline transportation of heavy crude oil
Pipeline transportation of viscous hydrocarbons
Pivoting control valve actuator and support assembly
Plate-type spray nozzle and method of use
Plate-type valve and method of use
Plug and seat positioning system for control applications
Plug valve
Plug valve and method of assembly
Plugcocks
Plugging a cut pipe for soldering a fitting
Plumbing control system with signal recognition
Plumbing coupling and method of use
Plumbing fixture
Plumbing installation
Plumbing repair device and method
Plumbing tool
Plunger-type fuel pressure regulator
Plural component controller
Plural diaphragm valve
Pneumatic actuation control system and method of operation