Sealed feedthrough assemblies are pressure rated up to 700 bar and can be used in applications at a maximum temperature of 870°C, dependent on the type of feedthrough and sealant material specified. Sealed feedthroughs for single elements cater for sensors from 0.5mm (0.020") dia. to 19.05mm (0.75"). Sizes that can be used in multiple element assemblies are from 0.5mm dia to 6.35mm (0.25").... more
The key factors in each application
temperature, pressure and process media
determine the choice of material for the internal
sealant in all feedthroughs... more
Spectite feedthroughs have been designed to provide an efficient seal on the elements and restrain them from moving under pressure and vacuum.... more
Feedthrough bodies can be specified with a choice of threaded process connections. Feedthroughs with the common tapered threadforms, BSPT (Conical gas thread or ‘R’ thread) to BS21, DIN 2999 ISO 7/1 & JIS B0203; and NPT (National pipe tapered thread) to ANSI/ASME B1.20.1 are generally available from stock... more
Plain, hexagonal caps are available for all sizes of feedthrough. Additionally, caps with a threaded extension for a conduit connection are also available... more
Spectite sealed feedthroughs are essential
when probes, sensors, electrodes, wires
and other types of static elements need to
be sealed as they pass through a pressure
or environmental boundary.
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Sealed feedthroughs, sometimes called sealing glands, are used
to seal elements under the most arduous conditions and have
many applications in a wide variety of industries:
They inhibit the leakage of gases or other media and restrain the
elements from moving in the assembly because of differential
pressure. In some assemblies, elements are also electrically
isolated from the feedthrough body and from each other.
The feedthroughs are made from stainless steel and are designed
for mounting on to a process vessel or enclosure. Versions can be
specified to seal on both single and multiple elements of different
types and sizes.
The cap nut is tightened to a pre-set torque to compress an
internal sealant. The sealant provides an efficient pressure seal
on the elements without damaging them. At the same time it
restrains them from moving. Epoxy sealing is not used... more