Page 46 - demico-industry

RING GASKETS

DEMICO manufactures large range ring gaskets in accordance with APl-6A. We manufac-
ture four basic types of ring gaskets; type R (octagonal shape, oval shape, type RX and
type BX) These basic shapes are used in pressures up to 10,000 psi. The dimensions are
standardized and require specially grooved flanges.
The octagonal cross section has a higher sealing efficiency than the oval and would be
the preferred gasket. Stock materials include soft iron, low carbon steel, 304, 316

“ PRECISION FINISH
“ MATERIAL’ STAINLESS STEEL LOW CARBON 0R INCONEL
“ DUAL CERTIFICAWON FOR LOW CARBON
“ FULL TRACEABILITY
Ring Joint Gaskets are suitable for high pressure and high temperature applications.
Ring Joint Gasket are available in R RX, BX styles and in oval/octagonal profiles.
Ring gaskets offered are manufactured in accordance with specific tolerances on CNC
machines. Ring Joint Gaskets fully comply with the ASME 316.20 standard and the API
spec 6A requirements (where applicable). Ring Joint Gaskets are manufactured in a
variety of standard and special materials and monogrammed as per API-6A (PSL4).

PRIME FEATURES
“ R type (oval and octagonal) solid sections to fit standard ring joint flanges with trape-
zoidal grooves
“ Types RX and BX with complex beveled edge sections for wellhead pressures above
700 bar.
“Combination Gaskets - Used where two flanges of different sizes are to be joined togeter.
“ Split Gaskets -Used where an API flange is to be joined with low pressure ANSI Flange
where a spiral wound gasket is used
“ Special metal gasket made to customer specifications.
Materials
“Standard: Soft iron, low carbon steel, stainless steels 304, 316, 321
“Non-standard high nickel alloys, super alloy steels and other stainless grades.
“Rubber coated ring joint gaskets - soft iron metal ring joint gaskets are coated with ntrile
rubber for
“testing wellhead assemblies and valves. Rings can be reused and do not damage flange
grooves.