Sanitary valves Reference standards: iso, gb, din, idf, 3a, hgj, sh, jb, qb, ansi Conform to gmp and fda requirements. Diameter range: dn6-200mm Flow direction: straight, three-way and multi-way Drive type: electric, pneumatic and manual Sealing materials: silicon rubber, edible non-toxic rubber, ptef Connecting types: ferrule quick-install, iso/sms/din thread (british System/metric system), flange and welding. Surface treatment: mirror polishing, lusterless treatment, acid pickling Material: aisi316l or aisi304 For detail data, please refer to "a handbook of pipe fittings pipelines Common specifications: 19.5, 25.4, 31.8, 38.1, 45, 50.8, 57, 63.5, 76.1, 88.9, 101.6, 108, 114.3, 133, 159, 219 Wall thickness:1.2mmó1.5mmó2mmó2.5mm Maximum working pressure: n0.98mpa, pipe length: 4-6 m/piece Stainless steel seamless pipe adopts gb/t14976-94 standard, stainless steel welded tube adopts gb/12771-91 standard. 19.5, 25.4, 31.8, 38.1, 45, 50.8, 57, 63.5, 76.1, 88.9, 101.6, 108, 114.3, 133, 159, 219