Based on the same principles as other Tesla Valves, just this time rotating round a pipe.
In execution this could be done by making a positive of this using 40mm conduit and garden hose. Encasing that in refractory cement - say in a section of steel drum; and then burning the positive out during baking, lost wax casting style. Picture exactly the form above, but in negative space. That is, imagine the form above as holes in a block or cylinder of some refractory cement mixture.
What you'd then have is a (only slightly leaky) one-way valve, but with NO MOVING PARTS!
Particularly great for very hot processes, where things like normal seals on valves would be degraded.