#540 SOLID GASKET
A plain gasket which can be fabricated in any required configuration. With
adequate bolting, #540 is effective and economical, especially on flanges
with concentric serrations. In addition to exceptional mechanical strength,
other characteristics of #540 include heat conductivity and excellent resistance
to high pressures, high temperatures and chemical attack. If gasket is not
finished machined, minimum width should be 50% more than the thickness of
the metal. The only limitation on dimensions of the flat metal gasket is
the width of metal sheet commercially available.
#541 PROFILE GASKET
Offers the desirable characteristics of the solid gasket plus the advantage
of reduced contact area supplied by V-shaped rib surface. #541 is used where
a solid gasket is required due to pressure, temperature or the intensely
corrosive effect of the confined fluid, and bolting would not be adequate
to seal the #540 gasket. Another applications of #541 is in the case of
screwed, or attrition, closures in which the relatively small contact area
reduces friction to a level sufficiently low to seal the joint.
#545 SERRATED GASKET
Constructed of heavy solid metal, machined with spaced concentric ribs.
Ideal for applications which require a wide, all-metal gasket with reduced
contact area. Well-suited for high temperatures and pressures in standard,
raised-face flanges. Should be used only with smooth-finished flange faces.
Serrated gaskets may be ordered for A.S.A. raised-face flanges.
#549 SOLID GASKET ROUND CROSS-SECTION
A round cross-section wire ring gasket. Flanges generally grooved, tapered
or otherwise faced to position gasket accurately during assembly; however,
certain applications may be between flat faces. Used primarily in circular
shape, #549 can also be used in moderately non-circular shapes.