I've got another "what's the correct way within Gregtech 5u" question.
I'm in the early stages of steam power, and I had some unexpected snags with running a Steam Alloy Smelter. A single Small Coal Boiler couldn't provide enough steam to keep it running, and when the smelter run out of steam mid-way through an operation, it halted and reset. So just running at a slower speed wasn't workable. I added a second boiler, and that wasn't quite enough either. I did hit on a solution, I disconnected the smelter, run both boilers up to a full load of steam, and then reconnected the smelter. That ran pretty much acceptably. Though I also noticed that the steam smelter consumed steam even if it didn't have any operations pending.
Breaking the steam pipe and then re-connecting it seems crude. I'd like a valve for the pipe, or a way to turn off the smelter so it doesn't eat steam. I looked into Shutter Covers and Machine Control covers, and those would do the trick handily - except that both require a very high tech device, the Assembler to make. There doesn't seem to be any way to craft one with a regular craftbench.
Is there a regular way to make them? Or to turn the smelter on and off? I can of course use pipes from another mod, such as Thermal Dynamics, but I'm wondering about the "correct" Gregtech way to solve the problem. Assuming the solution isn't "break the steam pipe regularly."