PU FKM UN Seal Hydraulic Reliability for Industrial Machinery

Seals play a crucial role in hydraulic systems. U-shaped seals made of
polyurethane (PU) and fluororubber (FKM) perform particularly well in high-
intensity environments, such as those found in construction machinery, motors,
and industrial robots.

Why choose polyurethane (PU) and fluororubber (FKM)?

Polyurethane is known in the industry as the "fifth plastic" because it
combines the properties of both plastic and rubber. Honestly, traditional
rubber often quickly breaks down in acidic and alkaline environments or when
exposed to organic solvents, while PU offers far greater resistance. Its
elasticity and toughness prevent deformation and aging even after extended use,
ensuring a stable seal. Fluororubber is highly chemically stable, offering
resistance to high temperatures, oils, high vacuum, acids, alkalis, and a
variety of chemicals. It also boasts relatively good media resistance among
elastomers.

NQKSF is U-shaped piston seal series, designed specifically for hydraulic
systems, can withstand temperature fluctuations from -20°C to 250°C, making
it suitable for a variety of complex environments. More importantly, as oil
pressure increases, its sealing force automatically strengthens, significantly
reducing leakage.

Application Scenarios and Industry Demands

Speaking of their applications, U-shaped piston seals are used across a wide
range of industries. Industrial machinery, especially pumps and hydraulic
cylinders, places stringent demands on seals. Seals in motors, gearboxes, and
engines also require both high-pressure and wear resistance. Agricultural and
construction machinery often operate in harsh environments, making U-shaped
seals' corrosion resistance and compression resistance an excellent choice.

Of course, industries like water treatment, wind power generation, and the
chemical industry also place extremely high demands on seal stability and
durability. NQKSF has accumulated extensive experience in the sealing field
over many years, exporting its products to over 80 countries and earning
widespread recognition.

NQKSF is Service Advantages

NQKSF is backed by a physical factory and over 30 years of manufacturing
experience. We offer a comprehensive inventory of O-rings and oil seals,
enabling us to quickly respond to urgent customer needs. NQKSF offers
comprehensive, customized services, from material selection and structural
design to testing, to address sealing challenges in diverse operating
conditions.

Our technical team helps customers optimize sealing performance, reducing
equipment maintenance costs and extending service life. Long-term customers
report that NQKSF is products are stable and reliable, with excellent after-
sales service.

U-type piston seals, particularly NQKSF is, are a wise choice for many industry
customers seeking to improve equipment stability and operational efficiency.
While small, these seals are crucial to the health of the entire system.
Whether in high-pressure hydraulic systems or harsh industrial environments, U-
type piston seals demonstrate their unique advantages.

For more details, please contact us or leave us a message, and we'll promptly
respond.

Minimum Order: 500 pieces

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