A JIS plate flange is a type of flange that is manufactured according to the Japanese Industrial Standard (JIS). JIS plate flanges are typically made of carbon steel, stainless steel, or alloy steel. They are available in a variety of pressure classes and sizes. Technical Specifications Standard: JIS B2220 Materials: Carbon steel, stainless steel, alloy steel Pressure classes: 1.0, 2.5, 6.0, 10.0, 16.0, 25.0, 40.0, 64.0 Sizes: NPS 1/2 - NPS 60 Facings: FF, RTJ, RF Bolt holes: ANSI B16.5 or JIS B2220
