Applications
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

Sealants
The key factors in each application temperature, pressure and process media
determine the choice of material for the internal sealant in all feedthroughs... more

Pressure Ratings
Spectite feedthroughs have been designed to provide an efficient seal on the elements and restrain them from moving under pressure and vacuum.... more

Process connections
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

Caps
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:

Process plant

Power generation

Vacuum equipment

Petro-chem


Pharmaceutical

Glass production

Semiconductor fabrication

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
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