Our range of compression sealing glands and feedthroughs are designed to reliably seal probes or power/instrumentation wires that pass through a pressure or environmental boundary. A choice of seal and body materials are available to cover a wide range of pressure, temperature and medium type. Glands are available for single or multiple elements, and one or more insulators may be included when electrical isolation is required.
Caps are available with or without an external screw thread for conduit fittings
The element to be sealed passes through the holes in the sealing assembly components, and when the cap is torqued to the recommended value, the torque on the cap translates to an axial force on the follower. This force compresses the sealant contained within the body housing so that the sealant conforms to the element, creating a tight seal. The elastic nature of a sealant allows it to flow into any voids between the sealant and the element.
The tension in the torqued body acts as a spring to maintain compression on the element, and the static friction force between the sealant and the element restrains the element from moving under pressure.
There are many standard options, but custom solutions can also be manufactured to your specification. Please ask for details or request a catalogue for further information. Techni Measure will advise on the selection of the appropriate gland for your application, and we will be happy to hold UK stock for next-day delivery on repeat orders. Please contact us to discuss your requirements.
| SERIES | DESCRIPTION |
|---|---|
| PG | General-purpose single-element packing glands |
| MK | Stainless steel ferule fitting Midlock glands |
| EG | Electrode glands isolated for electrical power up to 400 Amps |
| EGT | Electrode glands Teflon insulation up to 525 Amps |
| MHC | Multi-hole ceramic glands. Seals up to 16 elements |
| MHM | Multi-hole metal glands. Seals up to 27 elements |
| PL | Power lead glands with up to 18 pre-installed insulated leads |
| TG | Transducer glands for low voltage, up to 16 elements |
| TG24 | Transducer glands for insulated wires, up to 24 wires |
| HD | High-density feedthrough. Seals up to 60 conductors or more in multi-hole glands |
| BSWS | Glands designed for sealing bearing sensor wires |
| SPGA/ DSPG | Used primarily for multiple-element sealing. |
| PGS | Used for single-element sealing with bulbs. |
| HPPL | Power lead glands with up to 18 pre-installed insulated leads- high-pressure version |
| HEGPK | Electrode glands with PEEK insulation up to 525 Amps |
| HPEG |
High-pressure electrode glands isolated for electrical power up to 400 Amps |
SAMPLE PROBE ASSEMBLIES
We can supply a range of sample probe assemblies from Conax Technologies to enable the withdrawal of samples from process lines for periodic monitoring requirements. Various probe types are available, and wake frequency calculations can be performed. Please ask for further information and advice on selecting this product.
SEALANTS
Various sealant materials are available, and only certain sealants will be applicable for your application. The most common types are listed below, but please ask for advice on the best choice for any given application.
TEFLON
The most common sealant material, with excellent resistance to chemicals and good electrical properties. It is the least permeable to gases and usable up to 232 °C
VITON
Very good resistance to most chemicals, and good electrical properties. Very good element restraining capabilities and usable up to 232 °C.
NEOPRENE
Behaves similarly to Viton, but it is not as chemically inert. It is usable up to 93 °C and has excellent pressure restraining capabilities.
LAVA
Naturally occurring Magnesium Silicate actually crushes and re-compacts. It is usable up to 870 °C but does not seal gases well.
GRAFOIL
99% pure Graphite provides an excellent gas seal and very good pressure restraining capabilities at elevated temperatures. Useable up to 495 °C.
