Product Description Product name: Sanitary Non-return Valve Model: 20113 Material of valve: AISI304, AISI304L, AISI306, AISI316L Standard of valve: DIN/SMS/3A/ISO/IDF Flux domination of pipeline: DN25-150&1"-6", applied to the stainless steel pipeline system Medium: Beer, Dairy, Beverage, Pharmacy. Donjoy can supply this check valve with weld end, clamp end, flanged end and thread end connection. Requiring more detail information or catalog pls don't hesitate to contact us. For all our products, Donjoy can also produce according to ur drawing if ur Specification is out of our standard.