Wing Emyr Addey crossed twice and wing Liam Harris, centres Sean Harries and Ian Evans, and locks Scott Davies and Matthew Owen all added one apiece. Tom Blizzard kicked the remaining points.
Barry crossed for the game’s only try against visitors Dinas Powys, but it was Dinas who go through after a 9-5 success at the Reservoir Field.
Unbeaten Hendy, of Division 4 West, scraped into round three on away side try count after their match at Cwmtwrch finished 18-18, while a strong Cardiff Medicals XV followed their round one victory over Crickhowell with another league scalp after defeating Llanrumney 24-3.
Aberavon Green Stars, who are top of Division 4 South West, continued their fine run of form with a 51-0 victory over Porthcawl.
Up in the North, Colwyn Bay won 70-12 at Bangor, Wrexham defeated Flint 50-30, and Menai Bridge moved in to the next round with a 48-10 success over visitors Benllech.
