![[Translate to Englisch:] Stopfbuchspackungen](/header/Packungen_billi_seals.jpg)
Packings - easy and low cost
Mechanical gland packings provide a traditional, simple and cost effective way to seal pump shafts and valve stems.
Development in fibres, lubricants and braiding technology have been combined to improve the performance of packings and enable suitable types to be utilized as variable alternatives to mechanical shaft seals in many applications.
By selecting the appropriate gland packing and with correct installation, gland packings provide a controlled sealing solution, minimising equipment wear, down-time and running costs.
Catalog Packings - download now!
Packings - easy and low cost
Mechanical gland packings provide a traditional, simple and cost effective way to seal pump shafts and valve stems.
Development in fibres, lubricants and braiding technology have been combined to improve the performance of packings and enable suitable types to be utilized as variable alternatives to mechanical shaft seals in many applications.
By selecting the appropriate gland packing and with correct installation, gland packings provide a controlled sealing solution, minimising equipment wear, down-time and running costs.
Packings - easy and low cost
Mechanical gland packings provide a traditional, simple and cost effective way to seal pump shafts and valve stems.
Development in fibres, lubricants and braiding technology have been combined to improve the performance of packings and enable suitable types to be utilized as variable alternatives to mechanical shaft seals in many applications.
By selecting the appropriate gland packing and with correct installation, gland packings provide a controlled sealing solution, minimising equipment wear, down-time and running costs.
In addition to mechanical seals, stuffing box packings are reliable and safe seals. Stuffing box packings are preferably used for sealing pressure-loaded media in combination with fast rotating shafts.
Interwoven threads made of single or different materials make up the packing. It is used as a replacement for mechanical seals or as a gasket and usedcommon in stuffing boxes.
The packing consists of three elements: a fibre, a binder and a lubricant.
Stuffing box packings are used in both dynamic and static applications. Stuffing box packings are inserted into the stuffing box space and pressed axially by screwing to obtain a radial seal.
They are used in a variety of applications. For example:
Pumps
Agitators
Fittings
Piston pumps
Valves
autoclaves etc.
The choice of packing depends on temperature (T), pressure (p), pH of those liquids it is connected to (as a dynamic seal) and speed (v) of the attached shaft.
The packing itself forms the sealing element in the stuffing box space. Different types of packing are available, which are used for different applications and are manufactured using different processes: With 2-lane, 3-lane or 4-lane packing mesh. They consist of close-meshed yarns which are interwoven diagonally and can be additionally impregnated. The additional impregnation ensures closing potential voids in the braid. Hereby, ideal cross-sectional density is given preventing all leakage paths. Additional impregnation improves running properties, promotes heat dissipation and increases resistance to various media.
Special preparations are used for impregnation, depending on respective applications. For example, lubricants are recommended for pump packings. Filling agents, binding agents and dry lubricants are suitable for valve packings. For piston pump packings, the edges reinforced with Kevlar® are best used.
Correct installation is most important. A large proportion of production failures can be traced back to incorrect installation. The packings are pressed firmly into the installation space. Therefore, packings are cut into rings beforehand. These are inserted into the packing space and axially compressed with the packing gland by using screws or additional springs. Subsequently, the radial expansion causes the medium to seal almost completely, as the packing adheres to the annular space wall. Its elasticity remains constant -even under changing pressure and temperature.
