GMG Catalog

Ordering GuideRW, RWI Spiral WoundWhen ordering, specify:■ Nominal pipe size and pressure class■ Winding and filler materials■ Centering and/or inner compression ring materialSW Spiral WoundWhen ordering, specify:■ OD and ID dimensions (and tolerance, if otherthan standard—see page 13)■ Thickness of gasket■ Winding and filler material■ Inner ring material, if required (Style SWI)■ Pressure ratingHH, MC and MCR ManholeWhen ordering, specify:■ Make and model of boiler and/or equipment ifavailable (See chart page 10)■ Gasket style and configuration■ Dimensions of gasket (thickness, flange seatingwidth, and shape)■ Maximum operating pressure and temperature■ Type of metal and filler materialsHeat ExchangerThe size restrictions for heat exchanger gasketsdepend only on the available sizes of the materials.Heat exchanger gaskets are commonly made indiameters up to 120", with rib widths up to 1-1/4" andthicknesses up to 1/4".When ordering, specify:■ Style number■ Shape (Give configuration code, page 39)■ Thickness■ Material (metal or metal and filler)Plus specify (according to diagram below):1. Outside diameter2. Inside diameter3. Rib width4. Radius of rib5. Bolt circle radius6. Distance from center line of gasket to center lineof ribs7. Radius around bolt8. Size and number of bolt holesNote:In addition to the above information, drawings of your application arealways helpful in proper dimensioning of gaskets.Custom GasketsA spiral wound gasket can be made to almostany dimension required. Possible designs includemultiple windings and rings, with combinations ofdifferent fillers or special winding materials and ringshapes. Describe your application or send us adrawing and we’ll help you design the appropriatewinding.WARNING:Properties/applications shown throughout this brochure are typical. Your specific applicationshould not be undertaken without independent study and evaluation for suitability.For specific application recommendations consult Garlock. Failure to select the propersealing products could result in property damage and/or serious personal injury.Performance data published in this brochure has been developed from field testing,customer field reports and/or in-house testing.While the utmost care has been used in compiling this brochure, we assume no responsibilityfor errors. Specifications subject to change without notice. This edition cancelsall previous issues. Subject to change without notice.44