I've never heard of schedule pipe being used as a service line or fire-line. I think you’ll want to go with C900-DR14, which is a bit thicker than Schedule 80. C900’s O.D. will work with standard AWWA ductile iron O.D. valves and fittings. You can provide restraint by using retained joint pipe...
Is there any commercial software out there for a large hydrant flow test database? What are other utilities using to manage test data and create reports?