... as standard 2)304,316L stainless steel body and disc3)Coupling mode: clamps, male and welded coupling4)Size range: DN25-150 (1" ... fittings, sanitary stainless steel gaskets, sanitary stainless steel tubing and tube hangars, sanitary stainless steel pumps (centrifugal, rotary lobe ... ball check, disk check, safety, reversal etc), accessory items and component parts. Sanitary grade welded check valve