Shanghai Snowhorse M&E Equipment Co., Ltd. as the first level distributor which authorized by INPRO/SEAL and the top sales distributor of China, was awarded the Eagle cup in 2014. Mr. MARK, President of INPRO/SEAL global present the reward in person.
For INPRO/SEAL
products, we have not only professional sales staff, but also strong
after-sales service capabilities. Our company can provide door-to-door
inspection, measurement and best proposal. We can also provide door-to-door
installation and commissioning after sales. Up to now, we have successfully provided technical upgrading for a
number of world-class enterprises, and completely solved site leakage problems.
If you has any leakage problems with your
equipment, please feel free to contact us, we will provide you the best
solution.
At the start of project, industrial users usually pay great attention to the
quality of the bearing, and often designate equipment manufacturers to adopt
high-quality bearing brands such as SKF, FAG, NTN, etc., and use high-quality
lubricating oil recommended by manufacturers to ensure the service life of the
bearing, so as to ensure stable operation of the equipment and reduce
maintenance. Temperature and vibration probes will also be installed at key
bearings to monitor bearing performance.However, the oil seal is often ignored as a barrier to isolate
moisture and dust in the air from the lubricating oil. Up to now, many
equipment manufacturers still use the lip seal and ordinary labyrinth oil seal,
but these two oil seals have obvious shortcomings, which cannot prevent the oil
from being polluted by moisture and dust in the air in the long-term use. Statistics
from bearing manufacturers show that 74% of bearing failures are caused by
contaminated oil that does not provide good lubrication.
Before the invention of INPRO oil seals,
protective bearings were normally sealed with contact skeleton seals and
non-contact common labyrinth seals. The skeleton oil seal will leave carbides
on the contact surface of the shaft and cause wear to the shaft. Its life is
usually 3000 hours. It cannot be replaced timely after losing the sealing
function. And as a contact seal,
need to consume shaft power, friction generated heat will be transmitted to the
lubricating oil and bearings and affect the lubrication effect. According to statistics, each contact seal consumes an average of 147
watts of energy. Thus it can be seen that the skeleton seal has been
unable to meet the requirements of modern industry for high reliability and
continuous economic operation of process equipment.
 
Lip Seal Ordinary Labyrinth
Seal
The ordinary labyrinth oil seal is
non-contact, which does not cause wear to the shaft and does not consume the
shaft power. However, it cannot prevent the moisture and fine dust in the air
from entering the bearing box, nor can it prevent the oil mist from evaporating
into the air. The water content of lubricating oil has great influence on
bearing life. Experiments by NASA have shown that when the water content in the
lubricant increases, the life of the bearing decreases rapidly. See table following.
INPRO oil seal non - contact, non - wear
labyrinth seal provides permanent protection for bearings. INPRO oil seal is
made up of moving ring and stationary ring. During operation, the moving ring,
stationary ring and VBX O ring interact to prevent the loss of lubricating oil
in the bearing box and the foreign body outside the bearing box. Its unique design
makes it impossible for moisture and dust from the air outside the bearing box
to enter the bearing box. The actual service life of bearings sealed with INPRO
oil is usually 3 to 5 times longer than that of bearings sealed with normal oil
INPRO oil seals were invented and patented by
INPRO SEAL founder David Orlowski in 1977 (patent no. 4,022,479). They were
originally used in chemical process pumps and fully enclosed air-cooled motors. Its superior performance was unanimously
praised by customers, and soon almost all industrial rotating machinery used
INPRO oil seals. Up to now, INPRO oil seals have become the
standard configuration of most ANSI, ISO and API pump manufacturer, such as
Goulds, Flowserve, Sulzer and Union, etc. INPRO oil seals are also standard
configuration of IEEE-841 manufacturers such as Baldor, GE, Teco, Siemens,
Toshiba and Emerson. INPRO also provides oil seals to turbine, gearbox, coal
mill, fan and paper mill , such as Elliott, Terry, and CE Raymond.
Now the local
equipment manufactures start to use INPRO seals to improve their product
quatity in China, such as Sulzer, Deep Blue Pumps,Great Ebara Pump,Flowserve Pumps,Teco Motor(Suzhou).
INPRO
oil seal is the only non-contact labyrinth oil seal in the world that is
waterproof to steam and dust. Its stable and long-term bearing protection
performance has gradually replaced skeleton oil seal and common labyrinth oil
seal in various industrial fields. Its integral and split design can be applied
to shafts from 16mm to 2750 mm. INPRO oil seals are usually made of copper.
According to customer requirements, INPRO oil seals made of stainless steel,
titanium, aluminum alloy and other materials can also be provided. The
coefficient of thermal expansion of plastic is about 9 times that of copper,
and it will expand by 0.33mm after a temperature rise of 70oC, which will lead
to a decrease in sealing performance. Therefore, it is not used for INPRO. For
customers who use INPRO oil seals, the service life of the bearings is
prolonged, thus reducing the maintenance times of the equipment, reducing the
equipment damage caused by the bearing damage, increasing the reliability of
the equipment, and the non-contact design reduces the energy consumption, so
80% of customers choose INPRO oil seals to protect their bearings. INPRO oil
seal structure varies from simple to complex, and its design is very diversified.
We can change our design according to the requirements of users, thus meeting
the needs of user equipment.
   
Inpro/Seal Design Variations
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