... 3) Standard:SMS,DIN,3A 4) Size:1"- Sanitary Stainless Steel Clamped Sight Glass Product DescriptionProduct name: Sanitary Sight GlassType: ... DN100 & 1"-4", applied to the stainless steel pipeline systemMedium: Beer, Dairy, Beverage, Pharmacy, Food, Water, CosmeticWe are a manufacturer specialized ... reliefvalves, bends, tees, reducers, unions, ferrules, etc. Sanitary Stainless Steel Clamped Sight Glass