These DN 63 ISO-LF Centering Rings with screen vacuum fittings follow ISO-LF standards and have a flange size of ISO-63. These centering rings, with screen mesh, are useful in many situations in which a vacuum system or instrument needs to be protected from contamination by particulate generated from outside the system or from within. They are commonly used to build foreline vacuum plumbing and process systems. The centering ring contains a rubber elastomer o-ring. The standard sizes for ISO fittings are ISO-63, ISO-80, ISO-100, ISO-160, ISO-200, and ISO-250. They are made of corrosive resistant stainless steel with a O-Ring. is well known for its excellent resistance to heat (400°F/200°C) and to aggressive fuels and chemicals. 

Dimensions: 

A= 60.5 mm 

B= 69.6 mm 

C= 3.9 mm 

Sieve Size=0.5 mm