Pressure Control Valve

[NORAN]

Good morning guys,

Today I built a Pressure Control Valve, it is very simple to be taken is almost entirely of LEGO, unless the spring is pen.

Well it is mounted in the pressure line, the spring can be cut to adjust the time of its opening. Blue O-Ring is a small piece of hose. Thus it regulates the maximum pressure of the system and increases the useful life of the pump and not force the engine. Below some pictures and a video which can be seen the difference in sound with and without the pump connected to valve by the pressure line. Grateful, apologize for English.

[JGW3000]

Brilliant, looks like the real thing - any idea what the backpressure rating is?

[NORAN]

Thanks :) As I have no pressure gauge, I put the setpoint for a bit below the point limit of the pump. But cutting the spring at different points you can adjust to any pressure you want

[Rockbrick]

+1

[Lego Otaku]

Looks like it could work like one way valve? Air can flow one way with sufficient pressure but can't flow other way.

[kieran]

That's really nice

[allanp]

This is very good

[locoworks]

great idea. might be nice if you could use the excess pressure and also use lower pressure to set up a switch system to operate the pump motor so it works like a conventional compressor with air reservoir?? make the high pressure switch adjustable with a screw or something?? not 100% lego i'm sure but authentic operation.

[NORAN]

Thank you all.

Yes it can function as a check valve allowing passage only in one direction, and may even regulate a certain pressure it to operate as a true value.

The pressure is given it is activated by spring force, then cutting some coils of the spring you can regulate the pressure.

The two connections of the valve can be used, so if you want you can use the pressure valve output to trigger something if you want.

Now I'm working on a valve limiting flow to allow the actuators to be slower allowing more precise movements without loss of strength.