Cheap Filter query

[Fistleaf]

Is there any benefit with using the 10W shutoff filter vs the powerless single sensor single pipe output filter?

[asurendra]

What exactly do you mean by "single sensor single pipe output filter"? I can remember 3 different builds that can be described this way

[Fistleaf]

I mean the simplest 1 pipe element sensor connected to output pipe. No bridges.

[Zarquan]

Could you post a picture?  Because I don't get it either.

If I had to guess, you are describing a pipe element sensor connected to a vent.

[Fistleaf]

Yes, I mean just pipe element sensor connected to a vent. Simplest powerless filter, not sure if there is a benefit to use a 10W shutoff filter instead of this.

[asurendra]

But what if we dont want a vent here? Like we need this liquid to stay in pipes. For using in buildings or shipping to another planetoid? Sensor - vent build is situational, it has its uses, but cant solve everything

[Alexander Block]

You may not need to drain the water or release the gas. You're filling another canister or feeding the resource to an industrial unit.
You may not want the resource to remain in the outlet valve, as it could change its state (water outlet valve in the turbine chamber).

[Fistleaf]

Ok, thanks for the answers. I typically use powerless filter for venting fluids.

[KittenIsAGeek]

So the gas/liquid shutoff can be used for filtering, but its purpose is to control the flow of liquid or gas within the pipe.  A good example of this is a  coolant line.  You want the coolant to flow in only until a particular temperature is reached, then the valve is opened and lets the coolant out to bring more in.  Especially if you're cooling different areas to different temperatures while using the same coolant loop.  Like if you have an aquatuner that is cooling water to 40 degrees.  One room you want at 70 degrees, but another room has industrial equipment that produces a LOT of heat.  Put a tap on your coolant with a bridge into the room you want at 70 degrees and put a valve controlled by a thermo sensor in the room.  If the temperature goes above, say, 72, open up the valve and let the coolant in.  Another bridge can be used to prioritize the coolant leaving the room so your pipe doesn't get backed up.  Then the main line continues on into the industrial area where it loops back to the aquatuner.  The one room sits at 70 degrees while the industrial room gets cooled as much as possible.

You can also set up passive filtering using gas/liquid valves.  For gasses, this is really easy because the gas pump only puts 500g/s on average into the pipe, while the pipe can hold a flow of 1000g/s.  Then you set up a little loop with a valve and a bridge and after priming, you can split off a particular gas from the main pipe.  For liquids you need to reduce the flow with another valve first, since a liquid pump will completely fill the pipe.  If you don't, you'll end up with small amounts of excess that continue down the line they're not supposed to be in.

Spoiler

Something like this.  Lets say the top line is polluted water going wherever.  The bottom line coming in from the left is from a pump that is in a mix of water and polluted water.  The first valve reduces the amount per pipe segment to, say, 9kg, before it reaches the filter.  The central valve is set to 1g and lets polluted water circulate in a small loop.  The bridge going up from the bottom line to the small loop will only let polluted water in, since the small loop already has polluted water in it.  Once the small loop has more polluted water in, whatever doesn't get taken by the valve continues down the line to the upper right bridge where it is put into the line going for recycling or farming or whatever.  You have to prime the loop, though, so that all segments on it always have a small amount of the material you're wanting to pull from the line.  No automation or sensors needed.