INFLATABLE RUBBER SEALS
The inflatable seals manufactured by SEP are designed to provide a clean, time
saving solution to hermetic sealing against, powders, granules, gases, liquids
and dust.
- These seals are most useful to seal fabricated pieces of equipment where:
- the sealing gap may vary fast efficient assembly and disassembly is required
- hygienic procedures exist (FDA applications)
Generally working from within a given groove size the seals can operate axially, radially inward or radially outward.
All seals are supplied with a suitable inflation connector, selected to
accommodate any restrictions
associated with the equipment or customer preference.
Most requirements are for the FDA approved Silicone Rubber in either white or
red iron oxide colours. Other rubbers and colours are available. Using
pre-extruded profiles held in stock, SEP utilise a high pressure ‘Shot
Moulding technique, which injects an identical compound at the join forming a
high strength bond, with a clean smooth line finish.No additives or adhesives
form part of the bond. This process provides the seal with an ability to work
under higher pressures than most if not all other similar type seals in the
market.
The same ‘Shot Moulding’ technique is used to bond most types of
inflation connectors to the seals. This procedure bonds the connector to the
parent seal during the vulcanisation of the injected compound, the strength of
which far exceeds any mechanical fixing or adhesive bond, associated with this
type of seal.
All seals manufactured by SEP are independently pressure tested and supplied with
a supporting ‘Test Certificate’.These tests on free standing, unsupported seals vary from 1 bar to 4 bar
pressure, dependent on the profile type and/or customer specification.
With the aid of purpose designed test rigs, which enclose the seal, our
production techniques are tested (and supported with proven case history) on some profiles to perform at up to 12 bar
pressure.
The profiles shown are the most frequent extrusions utilised by SEP in the
manufacture of FDA approved silicone rubberinflatable seals. Other profiles are available and others can be manufactured to
virtually any customer design or requirement.
The inflated dimensions shown are guides only, as unsupported surface area
(closure dimension), can restrict working pressures on some seal profiles. Customers should verify specific profile
suitability with our
technical sales department.
Seal Description
Example: 1150 / SEP1A / 3 / a / 1234 /
R
Developed length (mm); Type of extrusion profile;
Seal face orientation (1 = radially outwards, 2 = radially inwards, 3 = axially
up or down);
Inflation connector orientation (a = opposite seal face, b = side wall adjacent
to seal face);
Valve connector type and parts; Colour (R = red, W = white).
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