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 The
MECOPAC is an elastomer-driven, MECO seal designed
to replace packing in stuffing boxes. It is used primarily
in airlocks and rotary valves, where no installation
clearance exists for an externally-mounted seal.
Like other MECO seals, the MECOPAC
seals on a plane perpendicular to the shaft, eliminating
abrasive damage to the shaft caused by packing or lip
seals. The MECOPAC has proven effective in maintaining
pressure differential across airlocks, without the frequent
adjustments required by packings.
The MECOPAC is available in several
materials, for service in a wide variety of products,
including food and pharmaceutical products, abrasives,
hazardous and toxic materials. The MECOPAC's function
is identical to that of the MECO EAS seal.
While the MECOPAC can be built fully-split,
most installations do not offer sufficient radial clearance
for split parts, and the seal is usually manufactured
unsplit.
The MECOPAC requires a minimum 3/8"
packing section, a minimum bore depth of 1.313", and
an air or gas purge of approximately 1/2 CFM at 3-5
psig.
MECOPAC seals should only be used
in applications where there is no possibility of installing
an external seal. MECOPAC seals can easily be damaged
by overtightening. Since there is no external indication
that the packing gland contains anything other than
ordinary packing, it is essential that operating personnel
be carefully trained, and made aware that the MECOPAC
is in place.
Product Literature
Revised 6 June, 2008
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