Detailed Product Description brass ball valve (1) Material : brass or zinc(make products as per customers' choose) (2)Nominal pressure: 1.6MPa (3) working Temperature:-20 to 150 (4)suitabe Madium:water ,Non-causticity liquid and saturated steam. (5)Parallel thread conform to ISO -228-1 :2000 (6) SIZE: 1/2" DN15 ,3/4"DN 20,1" DN 25 AND SO ON .