... ,BPE 1000pcs a week,sanitary clamp check valve Features:sanitary clamp check valve1)Material :SS304,304L,316,316L2)Size:DN25-150 &1"-6"3)Certificate:ISO9001:20004)Standard ... ,pharmacy,biotechnology, etc.6)connnection type:welded,clamped,flanged,threadedIDF sanitary clamp check valve