Steam turbine nozzle clearance is the total energy content available in steam. This is through a valve.

SR nozzle means "Self Reinforced Nozzle".

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Convergent nozzle indicates nozzles will converge with an end closing together at the end

divergent nozzles increase size at the end.

If air flows in this direction: --->

Convergent nozzle > Divergent nozzle <

The Wedco Nozzle is a CARB compliant spill-proof gas can nozzle. With the nozzle in place you can invert your gas can and it will not leak. Then simply push the nozzle lock and push the nozzle against the rim of the filling throat of the tank you're filling to start the flow of fuel. If you lift the nozzle away from the rim the flow stops.