2 Stage Bimba Cylinders

[2011FRC0234]

We are using a 2 stage cylinder from Bimba. It has three pressure port connections.
Applying pressure to the different ports allows the cylinder to move to different set extensions.

We have one double acting solenoid connected to ports 2 and 3, and a second solenoid connected to port 1. Each motion is accomplished through only one valve, as the two stages can act independently (Extend 1, Extend 2, Retract 1, Retract 2). Each input on the cylinder is connected to only one valve.

Can you confirm that these 2 stage cylinders are legal and do not conflict with R74.

<R74> Each commanded motion of a pneumatic cylinder or rotary actuator must be accomplished via the flow of compressed air through only one approved pneumatic valve. Plumbing the outputs from multiple valves together into the same input on a pneumatic cylinder are prohibited.

[2011FRC2484]

Is it legal, per rule <R74>, to use Bimba's 3 position cylinder, shown in the link below, on the robot this year? http://www.bimba.com/pdf/catalogs/FL...ne.pdf#page=67

[GDC]

As long as <R74> is followed and "each commanded motion of a pneumatic cylinder is accomplished via the flow of compressed air through only one approved pneumatic valve" and these cylinders meet the requirements of <R66>, the cylinders are allowed.