#511 SPIRAL-WOUND RINGS
These are in wide use among equipment manufacturers who are employing metal-to-metal
joints in an increasing list of applications. They also may be used for
standard tongue and groove and male-female joints at all pressures as well
as for valve bonnets, ammonia fittings and other closures which demand a
highly resilient gasket. They find particular application where space and
weight are critical factors in overall design problems, i.e., missile and
aircraft units. Standard gasket thickness is 3/16" nominal; 1/8"
and 1/4" thicknesses are available for special uses.
#513 SPIRAL-WOUND RINGS WITH OD CG
Built for long service life on standard piping and many other closures.
Withstand wide fluctuations in temperature and pressure. Usually supplied
with solid metal centering and compression ring surrounding outer edge only.
Gasket thickness is 3/16" nominal. Solid compression limiting rings
are nominal 1/8" thick.
#515 SPIRAL-WOUND RING WITH OD ID CG
Available with solid metal centering and compression rings surrounding
inner as well as outer edge. The inner ring fills space between flanges
and acts to reduce erosion of flange facings and minimizes turbulence. Gasket
thickness is 3/16" nominal. Solid compression limiting rings are nominal
1/8" thick. They are designed to prevent damage from careless insertion
or over-bolting.