The seal - a small technical detail - simply constructed, but significant. It must withstand influences such as high speeds, a variety of media or extreme temperatures from -55°C to 180°C. Seals of ttv are extremely resilient and meet these requirements perfectly.
From static seals to dynamic radial seals to cassette seals, ttv provides top quality. Whether as a standard product or individually designed for your requirements, they secure the functionality of your machines in use. The high quality of the ttv seals enables you even under the most difficult conditions problem-free function and work processes at any time.
Shaft seals are used when sealing between shafts and housings is required.
TTV offers shaft seals that meet the highest technical standard of sealing technology and are made of very good quality materials.
To maximise the functionality and service life of machines, we recommend our rotary shaft seals.
Rotary shaft seals consist of an elastic diaphragm including a sealing lip and a metal stiffening ring, the manufacture of which is based on DIN 3760.
Shaft seals are used to separate parts of the housing interior, such as emulsions, oils and greases, from materials on the outside, such as water, dust and dirt.
Shaft seals, also known as Simmerrings®, are used in the automotive sector, among others.
Flat seal made of a wide variety of materials (NBR, FPM, EPDM...) are, along with O-rings, a very versatile sealing element that is mainly used in the construction of devices and fittings.
The flat gasket has a flat shape - production costs are low, manufacturing is relatively simple and certain tools are sometimes required for installation.
A wide variety of fittings, applications and requirements call for individualised solutions.
The flat gasket from ttv from the mould, punched or also cut reliably seals against various media in different fittings and thus offers the best possible solution.
O-rings can be made of different materials, often EPDM because of its properties.
EPDM means ethylene-propylene-diene rubber. The EPDM seal is very resistant to hot water or steam up to approx. 130 °C and has very good UV and ozone resistance.
There are also special designs that can be used up to 150° C for a short time, but then they must be peroxide cross-linked.
The temperature tolerance ranges from -40°C up to 130°C. EPDM can also be used against glycol-based brake fluids (up to 150°C). These values depend on the respective applications and must be checked by our technical department for each customer application.
EPDM is also resistant to organic and inorganic acids, sodium bicarbonate, detergents and potassium hydroxide solution, silicone oils and polar solvents.
However, it is not resistant to mineral oil products (greases, oils, fuels).
A profile sealing ring can be used in various areas, for example where special edges need to be covered and at the same time the effect of a seal is also required.
These sealing rings are ideal for noise protection, thermal sealing or as protection against dust, dirt and draughts.
The profile seal can be made of different materials (EPDM, silicone, TPE or CR) and is, as the name suggests, made according to a specific profile.
The final purpose of the sealing profile influences the choice of a suitable material - the variation of materials is very extensive.
THE FOLLOWING IS AN EXCERPT FROM VARIOUS PROFILE SEALS:
Hollow chamber profile
Solid rubber profile
Square profile seals
It is also possible to create a combination of two profiles.
CHARACTERISTICS OF DYNAMIC SEALS
A dynamic seal is often used for moving machine parts.
The O-ring, for example, falls into the category of dynamic seals and is primarily used at low speeds and pressures.
If frictional resistance arises in hydraulic or pneumatic components, a smaller compression of the O-ring is used.
Sufficient lubrication should be provided in advance so that friction losses are kept to a minimum and the ring does not wear out prematurely due to dry running.
Silicone seals are particularly suitable for achieving the best possible seal and are often used for kitchens and bathrooms.
The silicone seal is particularly characterised by its ability to adapt to new environments in the best possible way.
The material silicone itself repels water and does not conduct.
NBR SEALS OR FKM SEALS
These are NBR rotary shaft seals with a -40° C guarantee, which means that this NBR seal works reliably down to -40° C temperatures.
At positive temperatures, the maximum value is 130° Celsius.
TTV also offers special customised solutions with special sealing technology, depending on which customer requirements want to be satisfied.
For example, there are NBR rotary shaft seals made of silicone elastomers that also work at very low temperatures.
NBR seals are used in agricultural technology or agricultural machinery, for example.
NBR HAS THE FOLLOWING PROPERTIES:
low compression set
Very good low-temperature behaviour
Good oil resistance
NBR seals against hydraulic oils, mineral oils and products, water glycols, oil in water emulsions and vegetable and animal oils.
In addition, O-rings can be made from FKM.
FKM gaskets are widely used in the sealing sector and can be produced from various materials.
Nitrile NBR, HNBR, chloroprene CR, silicone VMQ or fluorocarbon FKM can be used for the production.
The O-rings of technischen teile vertrieb GmbH are manufactured according to DIN 3601-1.
This type of FKM seal is used very often because it requires little space, assembly is very easy and these rings can be used in many different ways.
Simmerring® seals are rotationally symmetrical seals.
They ensure a high level of safety, are energy-saving and withstand extreme conditions.
Simmerring® seals are available in various designs and are manufactured in accordance with the DIN 3760 standard.
There is also a special version with a protective lip (BASL).
They belong to the assembly group of shaft seals.
Simmerrings® have good chemical resistance to mineral oils and greases and are used in everyday applications such as washing machines.
Rubber moulded parts are often not standardised or standardised parts, but they are specially developed for specific tasks and functions and are used in all branches of industry as buffers, seals or spring elements.
Rubber is very elastic, stable against pressures and abrasion and can be well loaded mechanically and chemically.
Depending on the task the rubber part is to fulfil, the suitable material must be selected and the production must be aligned accordingly.
Production is carried out using vulcanisation presses or highly modern injection presses.
Vulcanisation transforms the plastic rubber into an elastic material and can be produced as individual parts or in series.
Seals also exist as rubber-metal or rubber-plastic compounds.