valve stem


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valve stem

[′valv ‚stem]
(mechanical engineering)
The rod by means of which the disk or plug is moved to open and close a valve.
References in periodicals archive ?
Thermal distortion and rigid translation and rotation of the exhaust valve stem and guide due to hot assembly condition of the cylinder head are included in the model.
Had AD3 Morris not noticed the leaky valve stem cover on preflight, the pilot in command could have found himself executing loss of directional control during take off or landing procedures from NATOPS.
Each valve stem cover is removed, then the anti-rotation collar--op-tional, it snugs up against the sensor to keep it from vibrating off--is slid on, and the sensor (each is coded for the appropriate gear leg) is screwed on tightly enough so that the tire pressure reads on the monitor.
Rotate the inner tube so the valve stem lines up with the valve stem hole in the wheel.
x= valve stem position (0 means completely close and 1 means completely open)
The w valve features a non-wetted, low profile valve stem, ISO 5211 top flange mounting pattern, full seat liner design, and a molded padlock provision for lever handle models.
Many sites exercise an "out of sight, out of mind" approach to stem nut maintenance, which can lead to unexpected failure of a motor-operated valve stem nut.
It ensures that any downstream actuators for controlling process valves cannot be accidentally exposed to dangerous over-pressures that could be high enough to shear a valve stem or cause other damage.
Another maintainer placed the inflation adapter on the valve stem of the H-60 tire.
A tubeless tire valve stem attached to an air pressure tank at low pressure can be used to determine if the penetration leaks.
Traditional pMDI valves operate on a "dose retention" principle, collecting the dose when the valve stem is released after firing.
In this stated scenario, the result is a system where valve stem lift results in coil heat output as shown in Figure 2.