Hydraulic main

Related to Hydraulic main: hydraulic system
(Gas Works) a horizontal pipe containing water at the bottom into which the ends of the pipes from the retorts dip, for passing the gas through water in order to remove ammonia.

See also: Hydraulic

References in periodicals archive ?
The ST80T comes as standard with diesel power units, hydraulic main lift and hydraulic top fold.
Developed to be a safer alternative to accessing the drill rig rather than using vertical hanging steps, a hydraulic main access stairway enables the operator or maintenance personnel to bring tools up onto the drill with a reduced risk of falling.
OPTIMUM RELIABILITY AND SERVICEABILITY For maximum uptime and serviceability, active diagnostics of the hydraulic main valve monitors three critical parameters -- spool position, voltage control and sensor monitoring.
For maximum uptime and serviceability, active diagnostics of the hydraulic main valve monitors three critical parameters - spool position, voltage control and sensor monitoring.
One of the possible solutions is the incorporation of hydraulic accumulators in a hydraulic main. Hydraulic accumulators reduce pressure pulsation and the work of the hydraulic system becomes stable and equal.
However, the increased power created from the turbine engine created performance and reliability challenges for those hydraulic main rotor dampers.
For example, the four big piston-type variable-volume axial hydraulic main pumps provide twice the required capacity, so they can operate at reduced speeds for longer life.
Large diameter stems and large ports in the hydraulic main valve are designed to increase oil flow and minimize power loss across the main control valve.