valve seat


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valve seat

[′valv ‚sēt]
(design engineering)
The circular metal ring on which the valve head of a poppet valve rests when closed.

valve seat

The stationary portion of a valve which, when in contact with the movable portion, stops flow completely.
References in periodicals archive ?
It was also necessary to miniaturize the valve seat to obtain the desired force margins.
The valve seats are where the valves are supposed to nest when they're closed and make a seal.
The unique, soft seal valve seat design feature of WTA-2 series valves is particularly useful in analytical and clinical chemistry applications where inert valve materials are needed but particulate matter may be present in the fluid stream.
It is available with the standard polymer valve seat for media temperatures up to 80 Deg C and supply pressures up to 241 Bar (3500 psi).
com) has developed a new material for valve seat inserts for these engines (or those that are using high-octane blended fuels).
Follow the included instructions to install the new valve seat and flapper.
This suggests that the flow separated from the valve seat face at L/D=0.
A plunger that is lifted up from the valve seat when a short-current impulse is applied and a built-in permanent magnet holds it in the magnetic rest position.
The design delivers valve seat concentricity and optimal speeds eliminate chatter.
One of the trickier tooling tolerances has to do with the valve seat boring tools.
When injection starts, material pressure on the broad face of the serf-centering poppet drives it back against the valve seat, shutting off backflow.
The valve design consists of a simple tapered plunger and valve seat.