... 2.5", 3", 4", 6" 2)Standard: DIN,SMS,ISO,3A 3)Material: stai Pneumatic Diaphragm Valve1) ... Specification: DN15-200,1",1.5", 2", 2.5", 3", 4 ... ", 6" .2)Standard: DIN,SMS,ISO,3A.3 ... Pulling handle, Multi-position handle .7)Pneumatic device: Normally closed,normally opened, opened and ...