Rocket Espresso 真空斷路器

Took about ten minutes to fit and the boiler pressure is rock steady now, no more hissing steam leaks mid-shot. The brass threads seated perfectly, so I didn't need to wrestle with Teflon tape this time around. It's a small part, but it's done exactly what it's supposed to since day one.

The threads machined cleanly and seated perfectly on the first try—no wrestling with a stubborn flange. My boiler pressure has been rock-solid since I swapped the old one out, and the whole process took maybe ten minutes.

Finally got my replacement vacuum breaker installed and the seal is perfect — no more steam hissing from the top of the boiler. It threads in smoothly and holds pressure exactly as it should.