PTFE pall ring is developed on the basis of the PTFE raschig ring, It is to open one or two layers of rectangular holes in the sidewall,and the base material of the holes is not out of the sidewall but forms inward bending of blade.The same size of Pall ring and Raschig ring have the same surface area and porosity,
PTFE joint sealant tape is made of PTFE, PTFE joint sealant tape has excellent acid and alkali resistance, high tensile strength and elasticity, PTFE joint sealant tape is especially suitable for using in food, beverage, bio-chemical and pharmaceutical industry equipment flange seal,
Material: Natural rattan (sometimes coated for durability) Handwoven or machine-made Size: Inner Diameter: 3.5 to 4.5 cm (approx. 1.4 to 1.8 inches) Outer Diameter: 5 to 7 cm (approx. 2 to 2.8 inches) Height: 3 to 4 cm (approx. 1.2 to 1.6 inches) Color: Natural rattan color (light tan to dark brown) Sometimes painted or stained in various colors