Phil Maynard's side scored all their points in the first forty minutes with trys for Nash (2) and Ager. Richards kicked a penalty and a conersion as Coventry led 20-10 at the break.
Hurst scored two tries for Sedgley with one for Dutton whilst Nutt kicked three penalties and three conversions.
Coventry, who are eighth in the table are at home to 15th place Cinderford next Saturday.