Gas ball valve Code:T135 20 Size :1/4",3/8",1/2",3/4",1", ... /2",2". Material : brass. Certificate:ISO9001:2000 CE UL T135 20 Ball valve For Gas,full flowMale/female threadsLever handle in ... O-rings safe stem - PTFE seatsMinimum and maximum working temperatures:–20°C, 60°C.Threads: ISO 7/1 Rp parallel(equivalent ...