The function of gaskets is to prevent the leakage of medium outside the equipment.
Static seals are used in many applications such as plumbing and heating systems, sealing fasteners, containers and pipeline construction.
They are washers, rings or frames which generally are adapted to the whole width of the sealing surface.
They can be used for example in flange connections of pipelines, pumps, motors, valves, etc.
The gaskets are made of various materials such as:
Rubbers, fiber plates, synthetic plates, graphite, PTFE, etc.
The range in the graphite seals segment is not limited to rings and tapes, but also includes sheets: The many advantages of billi graphite sheets include the low permeability of liquids and gases as well as high resistance to chemical substances. In addition, the plates made of natural graphite convince for their enormous stability and high resistance to temperature fluctuations. The graphite sheets can be ordered in different versions so that the perfect items are available for every application: For example, you can choose from models without steel reinforcement, with plain steel inserts and tanged stainless steel reinforcement.
All graphite gaskets from our company are convenient for the targeted interaction between a high quality standard and improved health protection: you can order asbestos-free graphite sheets and many other types directly from us at a reasonable price.
In order to be able to meet the individual requirements of our customers, we offer various types of spiral wound gaskets: For example, you can choose between standard versions with a smooth surface and various special models. All articles are based on a stainless steel strip and high-quality filling materials such as graphite and PTFE, which underlines the excellent quality standard. The spiral wound gaskets of billi are characterized by a constant elasticity during hot-cold cycles. Classical applications in the chemical industry include all types of gas lines, directional valves and pumps. Furthermore, spiral wound gaskets are the optimal solutions for pressure vessel openings in steam systems as well as low and high pressure in nuclear power plants.
For the best possible functionality of spiral wound gaskets, the careful considered choice of model is of central importance: the versions with centering ring, for example, assures an ideal fit between the bolts.
O - ring seal as flexible perfection
To determine which O - ring can be used , only a few important operating parameters must be defined . The temperature , the pressure and the indication of the chemical resistance determines the selection of the correct O - ring at the right application.
O - rings from Billi - seals are distinguished , depending on the material , by high thermal stability, good chemical resistance and good low temperature flexibility.
Mechanical seals for the food industry are used in a very broad range of industry sectors, such as in breweries, wine and cider productions, beverage industry, cheese dairies, creameries, juice productions, producers of "soft drinks", etc.
In this case, the various components of the seal are made of FDA approved materials.
Our mechanical seals are suitable for use in:
KSB ®, A.P.V. ®, Alfa Laval ®, FRISTAM ® Lowara ®, TUCHENHAGEN ®, HILGE ®, INOXPA PROLAC ®, INDAG ®, GRUNDFOS ®, JABSCO ®, JOHNSON ®, etc.
Designing pumps, compressors and other equipment, the aim is to prevent leakage into that can emerge at any point by liquids or gases.
To solve this problem very often are used mechanical seals.
To obtain the desired sealing function and an adequate lifetime of the mechanical seal,the preconditions must be fulfilled within the permitted tolerances at any time:
parallelism of the sealing surfaces
perpendicularity of the seal faces to the rotation axis
elastic contact of the sealing surfaces
existence of a lubricating film between the two sealing surfaces
Usually the sealing capability of the mechanical seal against shaft or housing is obtained with the secondary seals, as O-rings, bellows or boots
In conjunction with the International Organization for Standardization (ISO) and their standards (ISO 3069), the German Industrial Standard (DIN) published proposals for standard mechanical seals with DIN EN 12756 (24960).
Due to the wide range of different designs, perfectly suitable PTFE seals are available for every application. The PTFE gaskets from billi are characterized by high dielectric strength, excellent electrical insulation properties and a low thermal conductivity. All items are manufactured with a high processing quality. Discover the various PTFE gaskets in our online catalogue and order the right products for your application directly from billi.
Depending on the respective requirements, different PTFE seals are suitable for you: Our comprehensive range includes, for example, PTFE thread sealing tapes with a temperature resistance of -200°C up to +260°C. The PTFE tapes are both, odourless and insoluble. In addition, the PTFE thread sealing tapes have a particularly low coefficient of friction, which improves their performances. We also offer PTFE cord with a pressure resistance of up to 10 bar. Possible applications include valves as well as piston and centrifugal pumps.