sampling valve connection code:welded/threaded/clamped body material:AISI304,AISI304L,AISI316,AISI316L sampling valveDetailed Product Description1) Material quality: 304,304L,316and 316L.2 ... ,liner).Valve:Actuator for butterfly valve , Clamp butterfly valve , Welded buterfly valve, Male-weld butterfly valve , Quick-install butterfly valve ,Samping valve , Check valve, Male buttefly valve ,Three ...