B.1:5.1 - Pump Skid

A pump skid can be a U.System holon whose parts include pumps, valves, controller, frame, and connectors.

B.1 recovers the holon aggregation claim. A.14 names component or portion relations. C.13 gives constructional grounding. C.16 carries whole-level characteristics such as maximum flow or pressure envelope. If a graph is drawn, it represents a selected dependency or structure; the graph is not the skid.