Suggestion: Add valve capability to liquid shutoffs

[StroamCR]

I've been working to set up an autonomously-controlled liquid oxygen cooling system for my generators, batteries, and transformers. I am using both liquid valves and liquid shutoffs, with the shutoffs tied to thermo switches, in an attempt to get a slow trickle of liquid oxygen on demand. However the valve and shutoff have to be arranged in series, which leads to issues no matter which order they're in.

If the valve is before the shutoff, then the minimum 2 pipe units will fill up with liquid oxygen during the period when the shutoff is closed. Then when it's reopened it drops a cold bomb (20 kg of liquid oxygen at -190C) before starting to properly trickle again.

If the shutoff is before the valve, then the liquid oxygen will continue to run out of the pipes for a while after the shutoff is closed, as the 20kg filling the two pipe units between the shutoff and valve slowly makes its way through the valve.

It would be nice, therefore, if the shutoff was capable of limiting its flow rate while it was open. The liquid valve could still be a less expensive, no power option for where the automated shutoff capability isn't needed.

[chemie]

+1