The appointing officer may, for disciplinary purposes, suspend a subordinate for a period not exceeding 30 days; and suspension shall carry with it the loss of salary for the period of suspension. The suspended employee shall be notified in writing of the reason for such suspension, and if the suspension be for more than five days the employee shall, at his request, be given a hearing by the appointing officer. The decision of the appointing officer in all cases of suspension for disciplinary purposes shall be final.