It demolished Ho Chi Minh City in thrilling straight sets (25-22, 25-20, 25-20) in the top-eight playoff match at the University of Taipei (Tianmu) Gymnasium on Sunday.
Alireza Jalali chipped in with 14 attacks from 25 attempts, one block and 4 aces for the winning side, while Nguyen Van Hanh was the lone Vietnamese player who scored double-digit 22 points for Ho Chi Minh City including 20 kills from 30 attempts and one ace.
The Iranian team will face the Japanese representative on Monday.
The 10th edition of the Asian Men's Club Volleyball Championship has been organized by the Asian Volleyball Confederation (AVC) with Chinese Taipei Volleyball Association (CTVA).
The tournament is being held in Taipei, Chinese Taipei from April 18 to 26.
The winner of this tournament will qualify for the 2019 FIVB Volleyball Men's Club World Championship.