1. Special surface treatment of spray painting, very smooth 2. Right angle style 3. Orifice: 25mm, 40mm, 50mm, 62mm, ... China!1. The thread structure of DCF-Z right-angle pulse jet valve is inch pipe thread. The ... exhaust-chamber volume is increased. 2. It is a right-angle valve, with the 90°angle between the inlet and outlet ... : Connection port(G) 3/4'',1'',1.5'',2'',2.5'',3''DN (mm) 20,25,40,50, ...