FAQ

An O-ring is a ring-shaped seal made of elastic material. It is used to reliably seal two components and prevent the leakage of liquids or gases.

O-Ringe kommen in vielen Bereichen zum Einsatz, z. B. in Hydrauliksystemen, Pneumatik, Maschinenbau und Automobilindustrie. Sie dichten statische und dynamische Verbindungen ab.

O-rings are manufactured from various elastomers, such as NBR, FKM (Viton), EPDM or silicone. The material choice depends on temperature, medium and operating conditions.

Inner diameter, cord diameter, material and operating conditions such as temperature, pressure and media resistance are important. Precise matching prevents premature wear.

The lifespan depends on the material, load, and environmental conditions. With proper selection and application, O-rings can be very durable, but they wear out faster under extreme conditions.

Round cords are elastic sealing profiles with a round cross-section. They are frequently used to seal joints, housings or special applications, particularly when standard O-rings do not fit.

Yes, round cords can generally be supplied by the meter and cut to size individually. This allows them to be flexibly adapted to different applications and installation situations.

Round cords are available in various elastomers, such as NBR, EPDM, silicone or FKM. The choice depends on factors such as temperature resistance, chemical contact and mechanical load.

Yes, round cords can be a good alternative when no suitable O-ring size is available. They can be cut to length individually and joined to form a closed ring.

Round cords can be joined by vulcanization or adhesive bonding. The choice of method depends on the material and the required load capacity of the joint.

Ein X-Ring ist eine Dichtung mit vier Dichtlippen statt einer runden Form. Dadurch bietet er eine bessere Abdichtung und geringere Reibung als ein klassischer O-Ring.

X-rings are particularly suitable for dynamic applications, as they cause less wear and prevent twisting in the groove.

X-Ringe werden aus verschiedenen Elastomeren wie NBR, FKM oder EPDM hergestellt. Die Materialwahl richtet sich nach Temperatur, Druck und Kontaktmedien.

They are frequently used in hydraulic systems, pneumatics, mechanical engineering and automotive technology, particularly at moving sealing points.

No, X-rings usually require specially designed grooves to make the most of their advantages. A direct replacement is therefore not always possible.

There are various designs, e.g. with or without a dust lip as well as different sealing lip designs. Selection is based on operating conditions such as contamination, pressure and rotational speed.

Typical materials are NBR, FKM or PTFE. They differ in temperature resistance, chemical resistance and wear behavior depending on the application.

Inner diameter, outer diameter and width are important. These dimensions must match the shaft and housing exactly to ensure reliable sealing.

No, shaft seals should generally be replaced after removal. Already used seals may be damaged or worn and may no longer reliably perform their function.

They are robust, versatile and available in many standard sizes. They also offer reliable sealing in rotating applications and are economical to use.

Heavy-duty versions typically feature reinforced housings, additional sealing lips, and durable materials. This allows them to withstand higher loads and harsher environments better than standard solutions.

Yes, that is exactly what they are designed for. Additional dust lips and robust designs effectively protect against dirt, mud or dust and extend the service life of the seal.

Depending on the application, you can choose between materials such as NBR, FKM or special high-performance materials. These offer different advantages in terms of temperature, chemical resistance and wear.

The higher resistance often allows maintenance intervals to be extended. Less wear means the seal works reliably for longer and needs to be replaced less frequently.

No, in most cases installation is similar to standard shaft seals. However, clean assembly and proper preparation of the sealing surfaces are important.

An external shaft seal is used when the seal is mounted on the housing from the outside. This is particularly useful when subsequent sealing or easy replacement is required.

You benefit from simpler installation and removal, as the seal ring is accessible from the outside. This saves time during maintenance and reduces machine downtime.

Yes, this design is ideal for exactly that purpose. It can also be used on existing systems without major modifications to the housing.

Yes, with correct selection and installation they offer equally reliable sealing. It is important that the installation situation and operating conditions are taken into account.

Ensure that the sealing surfaces are clean and undamaged. Even pressing is also important to achieve optimal sealing effect and long service life.

Rubber fabric shaft seals consist of a combination of elastomer and textile reinforcing fabric. They are used primarily in demanding applications requiring high dimensional stability and load capacity.

These seal rings are particularly suitable for difficult installation conditions, large diameters or when high mechanical stability is required. They offer advantages over purely elastic seals.

The fabric insert provides additional strength and dimensional stability. This keeps the seal rings dimensionally accurate and resistant to mechanical influences even under load.

Compared to metallic reinforcements, fabric versions offer more flexibility while maintaining high stability. They can often be better adapted and are less susceptible to corrosion.

Yes, their robust construction makes them well suited for demanding environments. However, the exact suitability depends on the elastomer used and the respective operating conditions.

High-pressure shaft seals are used when elevated pressures occur in applications that can no longer be safely managed with standard seals. They ensure reliable sealing even under extreme conditions.

Standard shaft seals can fail, deform or become leaky under excessive pressure. This can lead to leakage, increased wear and in the worst case damage to the machine.

They have reinforced sealing lips, more stable housings and often additional support elements. This design makes it possible to safely seal significantly higher pressures.

Important factors are the pressure range, temperature, rotational speed and chemical resistance to the medium. Careful selection increases service life and operational reliability.

No, with correct design and installation they work reliably over long periods. Nevertheless they should be regularly inspected to detect wear or damage early.

Yes, PTFE has very good sliding properties and can be used even with little or no lubrication. This reduces wear and increases operational reliability.

PTFE is suitable for a very wide temperature range and remains stable even at extreme temperatures. This makes it versatile and applicable in a wide variety of applications.

PTFE is nearly universally chemical-resistant and withstands many acids, alkalis and solvents. This makes it the ideal choice for demanding environments.

Careful installation is important, as PTFE is less elastic than rubber. Clean surfaces and correctly designed installation spaces are critical for optimal function.

In many applications yes, particularly with high loads or aggressive media. However, service life depends heavily on the respective operating conditions.

Gamma seals are special shaft seals that frequently consist of a combination of metal and elastomer. They are used primarily to reliably protect bearing positions against dirt, dust and moisture.

Use is particularly appropriate in applications with high contamination or difficult environmental conditions. They provide additional protection when standard seals are insufficient.

Yes, gamma seals are specifically designed to prevent the ingress of dirt and water. This significantly increases the service life of bearings and machines.

Compared to classic shaft seals, gamma seals offer a stronger focus on protective functions. They often act as an additional barrier against external influences.

Yes, many gamma seals are designed for rotating applications. However, the exact suitability depends on the design and operating conditions.

V-rings are elastic seals that sit on the shaft and seal axially against a counterface. They are used primarily as protective seals to keep out dirt, dust and moisture.

V-rings are particularly suitable when simple and effective sealing against external influences is required. They are ideal as a supplement to other sealing systems.

Yes, V-rings are specifically designed for rotating applications. They adapt flexibly to the movement and ensure reliable sealing.

They are easy to install, require little installation space and offer good protection against contamination. They are also cost-effective and versatile.

V-rings are considered very low-maintenance. With correct application and appropriate operating conditions they work reliably for a long time without significant maintenance effort.

A special solution is appropriate when standard seals do not meet the technical requirements, for example with special installation spaces, extreme conditions or particular media.

Yes, special profiles are individually designed. Geometry, material and properties can be precisely matched to the respective operating conditions.

They enable optimal sealing even under difficult conditions. This can increase efficiency, reduce wear and extend the service life of components.

Development takes place in close coordination with the requirements of the application. Factors such as dimensions, load, temperature and media are analyzed and integrated into the design.

Costs may be higher, as development and manufacturing are more individual. At the same time they often offer economic advantages through longer service intervals and reduced maintenance effort.

Hydraulic wipers remove dirt, dust and moisture from retracting piston rods. This protects the hydraulic system and prevents the ingress of contaminants.

A wiper is needed whenever moving parts such as piston rods are exposed to external influences. It serves as the first protective barrier for the system.

Yes, by removing contaminant particles wear in the system is reduced. This makes a significant contribution to the longer service life of seals and components.

A wiper's task is to keep contaminants out, while seals prevent media from escaping. Both components complement each other in the system.

Replacement is necessary when wear or damage occurs. Regular inspection helps to ensure the function and protection of the system.

Guide elements ensure that moving components such as pistons or rods are guided precisely. They prevent direct metal contact and thus reduce friction and wear in the system.

Guide elements are used whenever components need to be guided and stabilized, particularly in hydraulic and pneumatic systems with moving components.

Yes, by separating moving metal parts friction is minimized. This protects components and extends the service life of the entire plant.

Typische Werkstoffe sind Kunststoffe, Verbundmaterialien oder spezielle Gewebeverbunde. Sie zeichnen sich durch hohe Belastbarkeit und gute Gleiteigenschaften aus.

They are frequently used in mechanical engineering, hydraulic cylinders, industry and in mobile applications such as construction and agricultural machinery.

Hydraulic piston seals seal the piston in the cylinder and ensure that pressure is maintained in the system. They enable controlled movement and prevent internal leakage.

Yes, damaged or worn seals lead to pressure loss and inefficient operation. This can significantly reduce performance and lead to further damage.

There are various designs such as single or double seals as well as different profile shapes. The selection depends on pressure, speed and operating conditions.

Decisive factors are operating pressure, temperature, medium and type of movement. Appropriate matching of these parameters ensures optimal performance and long service life.

Yes, many piston seals are specifically developed for high pressure loads. However, the exact load capacity depends on the material and design.

Hydraulic rod seals seal the piston rod to the outside. They prevent hydraulic fluid from escaping from the cylinder and simultaneously protect against the ingress of dirt.

Rod seals are needed whenever a piston rod is led out of the cylinder. They are essential for safe and clean external sealing.

Yes, wear or damage frequently leads to visible leakage. This can not only reduce efficiency but also affect the environment and adjacent components.

Rod seals seal to the outside, while piston seals maintain pressure within the cylinder between two chambers. Both perform different tasks in the hydraulic system.

Symmetric hydraulic seals have an identical geometry on both sides. This allows flexible installation and reduces the risk of assembly errors.

Yes, many symmetric seals are designed so that they can be used in both piston and rod applications.

The identical shape on both sides eliminates the need to check installation direction. This simplifies assembly and saves time, especially in series installations.

Yes, they offer comparable sealing performance in many applications. However, suitability depends on the specific operating conditions.

They are used in mechanical engineering, hydraulic systems and industrial plants where easy assembly and flexible deployment options are required.

Pneumatic wipers remove dirt, dust and moisture from retracting piston rods in pneumatic systems. They protect the internal components and contribute to functional reliability.

A wiper is needed as soon as moving components are exposed to external influences. It prevents contaminants from entering the system.

Yes, by keeping dirt and particles away, wear is reduced. This extends the service life of seals and other components.

Pneumatic wipers are designed for lower pressures and different operating conditions than hydraulic wipers. Materials and designs are adapted accordingly.

No, they are considered low-maintenance. Nevertheless, they should be inspected regularly to ensure proper function.

Der Einsatz ist notwendig, sobald ein pneumatischer Zylinder verwendet wird. Ohne Kolbendichtung kann kein ausreichender Druck aufgebaut oder gehalten werden.

Yes, leakages lead to pressure loss and inaccurate movement. This reduces efficiency and can lead to functional malfunctions.

Pneumatic seals are designed for lower pressures and drier conditions. They often require lower friction and are more sensitive to lubrication.

An optimally matched seal reduces air losses and friction. This makes the system work more efficiently and requires less energy for the same output.

Pneumatic rod seals seal the piston rod to the outside and prevent compressed air from escaping. At the same time they protect the system against the ingress of dirt and particles.

Yes, leaks lead to pressure loss and can negatively affect performance and the precision of movement.

Pneumatic seals are designed for lower pressures and dry media. They place greater emphasis on low friction and fast responsiveness.

Elastomers, polyurethane or special plastics are frequently used. These materials offer a good combination of flexibility and durability.

They are used in pneumatic cylinders, automation systems and industrial plants where precise and reliable movements are required.

Symmetric pneumatic seals have an identical geometry on both sides. This allows them to be installed regardless of the installation direction, which significantly simplifies handling.

They reduce assembly errors, simplify inventory management and enable faster installation. This saves time and minimizes the risk of incorrect installation directions.

They provide reliable sealing with simultaneously low friction and are designed for typical pneumatic operating conditions.

Yes, in many applications they achieve comparable performance. However, the exact suitability depends on pressure, speed and operating conditions.

They are used in pneumatic cylinders, automation systems and industrial plants where simple assembly and flexibility are required.

Molded seals are individually manufactured seals precisely adapted to a specific geometry. They are used wherever standard seals are insufficient.

A molded seal is needed when complex component geometries are present or special sealing requirements exist that cannot be met with standard solutions.

Ja, sie werden individuell nach Zeichnung oder Muster gefertigt. Dadurch lassen sich Form, Material und Eigenschaften optimal auf die jeweilige Anwendung abstimmen.

Yes, through individual design they can be specifically adapted to high temperatures, chemical loads or mechanical requirements.

Sie finden Anwendung im Maschinenbau, in der Automobilindustrie, in der Medizintechnik sowie in vielen weiteren Industriebereichen mit speziellen Anforderungen.

Sanitary Seals & Gaskets are seals for hygiene-sensitive areas. They are used to safely seal systems while simultaneously meeting the highest requirements for cleanliness and hygiene.

Use is required in industries with strict hygiene regulations, such as the food, pharmaceutical or beverage industry, to prevent contamination.

Typical materials are FDA-compliant elastomers such as silicone, EPDM or PTFE. They are resistant to cleaning processes and food-grade.

Yes, they are designed for regular CIP and SIP processes and retain their properties even during intensive cleaning.

Sie werden in der Lebensmittelverarbeitung, Pharmaindustrie, Biotechnologie und Getränkeproduktion eingesetzt, überall dort, wo Hygiene oberste Priorität hat.

Spiral wound gaskets consist of a metallic spiral winding combined with soft sealing materials. They are mainly used in flange connections to provide reliable sealing even at high temperatures and pressures.

They typically consist of metal strips (e.g. stainless steel) and filler materials such as graphite or PTFE. This combination provides stability and flexibility.

They compensate for irregularities more effectively, are more robust, and provide higher sealing performance under varying operating conditions.

As a rule, they should be replaced after disassembly, as the structure changes under load and the sealing effect may diminish.

They are frequently used in the chemical industry, petrochemistry, energy generation and plant engineering — wherever high sealing requirements exist.