O-Ring, transparent, from silicone (VMQ), not suitable for desiccators, DN 150 Flat flange vessels are large-volume reaction vessels consisting of a lower part and a lid. These two parts are held together by a clamping ring. The transparent O-ring made of silicone serves as a seal for flat flange vessels with an annular groove. It prevents tilting of the ground surfaces between the lower part and the lid and convinces by its good elasticity. The chemical resistance is limited compared to FEP coated O-rings. Features and Benefits: Accessories for flat flange vessels from silicone (VMQ), so is highly elastic The chemical resistance of silicone is lower than FEP coated O-rings Application: Tight closure of flange vessels