title
...case in which the charge pump relief is venting (motor or pump) must be determined and the two case drain lines (motor and pump) must be isolated from each other. If the charge relief vents into the case of the pump, then it is possible to determine the condition of the motor by measuring its case drain flow, but not the pump. If the charge... See #2.
Double Wall Tanks: BHTank
...A gauge rod for monitoring the secondary containment tank. A 4" threaded fill port with hinged inspection hatch. (2) 4" threaded vent ports for emergency pressure relief vents on secondary and primary compartments (2) 2" FNPT (female national pipe thread) fittings in primary compartment for normal vent and pump outlet (1)... See #3.
Konvekta Ltd - Air control equipment.
Non Return Dampers Multi-leaf non return dampers primarily used as air operated opening or closing dampers for intake, discharge and pressure relief vents in air conditioning systems. External Weather Louvres Louvres primarily used in ventilation and air conditioning systems to prevent water ingress at air intakes and discharges. See #4.
| 
