Do you need separate pressure regulators for each moving pneumatic system (i.e. robot lift with 4 pistons) or is it one pressure regulator for all of the systems?
For example, if you are using multiple pneumatic cylinder systems, do you need a “working” pressure gauge for each system or is it one gauge for the entirety of the system?
You just need one “working” pressure regulator after the air tanks (as shown in this picture), but you can have multiple regulator if you know a certain pistons only need a certain PSI, so that way your not putting all the air into one piston.
Bold is mine, italics is the “blue box”:
R88. Working air pressure (air pressure used to actuate devices) on the ROBOT must be no greater than 60 psi (~413 kPa) and must be provided through a single primary adjustable, relieving, pressure regulator.
Norgren regulator P/N: R07-100-RNEA or Monnier P/N: 101-3002-1 recommended.
Secondary regulators fed by the primary may further reduce the pressure for actuators which do not require as much pressure; if you use them, pressure gauges on those further-reduced legs are optional*, but I’d recommend it so you know what you’re getting. Also note that most of the solenoid valves used in FRC are “piloting”, which means that the solenoid moves a little valve, and that air pressure is used to switch the main valve, so a minimum pressure (typically 30psi) is needed to activate the valves.
Setthew,
I addition to Gee above, you may add a pressure gauge to each secondary regulator to assist you in making adjustments. As Gee pointed out, most solenoid valves will only guarantee operation within a specified pressure range and rarely will reliably operate under 40 psi. They may not operate as intended 100% of the time. R 90 should read “upstream and downstream of the primary regulator”.
Yes, that’s how I read “the”. Thanks for the verification!
Gee,
There is no rule that secondary regulators have pressure gauges, so R90 only refers to the primary regulator. Most teams will add a gauge to insure the pressure is set where they want it.
That’s exactly what I meant by “optional” and “I’d recommend it”.
