Parallel Norgren regulators 120 - 60 psi

[FRC95]

We would like to use multiple Norgren primary regulators (120 - 60 psi) in parallel to supply pistons at 60 psi but allow greater air flow rate than is possible with only one primary regulator. Careful reading of the rules indicates that this would pass safety considerations (working pressure no greater than 60 psi).

However, two Q&A threads posed this question slightly differently and received conflicting answers: Pneumatics R88 Question - yes it would be permitted; Pneumatics regulators and cylinders - not permitted "for the sake of a predictable and reasonable inspection process."

Can we use multiple Norgren primary regulators (120 - 60 psi) in parallel to supply pistons at 60 psi with greater total air flow rate than is possible with only one primary regulator?

We would pay special care to ensure that the system is easily understood during inspection.

[GDC]

It is permissible to use multiple Norgren regulators. But under Rule <R98>, and for the purposes of a predictable and reasonable inspection process, all regulators, valves, cylinders, and other elements of the "working system" must be located downstream from the (one) primary regulator. Any additional regulators (Norgren or otherwise) must be located downstream from this one primary regulator.

The answers to the other questions have been clarified to make sure this is understood.