MGP Spiral Gaskets are manufactured in following types:

Type MGPP Spiral Without Inner And Outer Ring Suitable For Groove Flanges. Type MGPR Spiral With Only Outer Ring Used As Centering Device And Compression Stop - General Applications. Type MGPIR Spiral With Only Inner Ring Used As A High Pressure Temperature Capability - For Groove Flanges And General Applications. Type MGPCRIR Spiral With Inner And Outer Ring Of Solid Metal For High Pressure And Temperature Applications. Prevents Damage to The Gaskets Bore And Inner Windings - Acts As A Heat And Corrosion Barrier - Application As General And Critical Duties. Type MGPIJ Spiral With Inner Or Outer Or With Partition Ribs Acts As A Pass Bars. Manufactured To Customer Design. The material of construction of Spiral Wound Gaskets are as per annexure

Filler Material Recommended Maximum Temperature ASME B16.20 Color Coding       Graphite 550°c Grey Stripe PTFE 260°c White Stripe Non Asbestos/CAF 350°c White/Pink Stripe Ceramic 650°c         Winding Material Recommended Maximum Temperature ASME B16.20 Color Coding 304 Stainless Steel 650°c Yellow 304L Stainless Steel 650°c Yellow with Red Strip 316/316L Stainless Steel 650°c Green 316Ti Stainless Steel 650°c Light Blue 347 Stainless Steel 650°c Blue 321 Stainless Steel 650°c Turquoise Blue Monel 400 600°c Orange Nickel 200 600°c Red Titanium 350°c Purple Hastelloy B-2   450°c Brown Hastelloy C-276 450°c Belge Inconel 600 950°c Gold Inconel 625 450°c Gold Inconel X-750 1000°c Light Grey Incoloy 825 450°c White