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Hydraulic Seals

Hydraulic seals are constructed from polyurethane, rubber, or PTFE.Hydraulic seals are widely used in hydraulic cylinders of excavators, bulldozers, cranes, and many other types of heavy equipment.

Dynamic seal and static seal of hydraulic seals Classification. The portfolio covers piston seals, rod seals, seals buffer, and wiper seals along with guide rings and O rings.

Hydraulic seals

Spring Energized Seals

Spring energized seals use a metal spring to apply constant force to the sealing lip, ensuring consistent performance even under variable pressure and temperature. The seal body is typically made from PTFE or other high-performance polymers, offering low friction and chemical resistance. Spring energized seals are ideal for demanding applications such as cryogenics, aerospace, chemical processing, and high-speed rotary systems. Their design allows reliable sealing in dynamic, static, vacuum, and aggressive media environments.

Oil & Gas Seals

Oil & gas seals are designed to perform under high pressure, extreme temperatures, and aggressive media. They prevent leaks in critical systems and ensure equipment reliability. Materials like FKM, HNBR, PTFE, and PEEK are commonly used for their resistance to heat, chemicals, and wear. Oil & gas seals are widely used in downhole tools, valves, pumps, compressors, and subsea equipment. These seals are essential for maintaining safety and sealing integrity in exploration, drilling, and refining operations.

Lng seals

LNG seals are engineered for cryogenic temperatures, often below -160°C, where standard materials fail. These seals are made from PTFE, modified PCTFE, or elastomers specially formulated for low-temperature flexibility and chemical resistance. LNG seals are used in pumps, valves, loading arms, and transfer systems within LNG storage, transport, and processing. They ensure long-term sealing reliability in liquefied natural gas operations, preventing leakage and maintaining system integrity under thermal shock and pressure variations.

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CANTILEVER SPRING ENERGIZED ROD SEAL
Cantilever Spring Seals make use of a V shaped spring embedded in a polymer jacket. At installation, the V shape of the spring is compressed, providing sealing energy to the seal jacket ensuring a positive seal. They are common replacements when rubber u-cups fail due to chemical attack, extreme temperature range, friction concerns and wear issues. Cantilever Spring Seals are best suited for reciprocating applications such as shocks, hydraulic cylinders, pumps and compressors. The shape of the spring concentrates load on the front of the seal, which makes this design also suitable for use as environmental excluders and for applications requiring scraping of viscous media. As an additional option, the spring cavity area can be filled with silicone for FDA clean-in-place applications.


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Accumulator Piston Seal
The P003 Accumulator Piston Seal is a low-friction design, consisting of a PTFE-filled seal and O-ring energizer. It is designed for double-acting cylinders in challenging applications, where low friction and high wear resistance are needed.


Item NO.:                             P003


Payment:                               T/T


Product Origin:                   China


Shipping Port:              Shenzhen


Order(MOQ):                         50

Out-of-Stock
HELICAL SPRING ENERGIZED ROD SEAL
Helical Spring Seals are comprised of a wound ribbon metal spring installed in a polymer jacket. This helical shape spring affords a relatively high load versus deflection range resulting in a seal product that can provide very tight sealing. As a highly loaded product, Helical Spring Seals should be considered when dynamics are very slow or static. Examples are in stems seals and in cryogenic valves where additional force is required to overcome thermal effects.
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Heavy-Duty Piston Seal
The P004 Series heavy duty piston seal is a low-friction design, consisting of a PTFE-filled seal and a profiled energizer. It is designed for large-diameter, double-acting cylinders in challenging applications, where high pressure and large extrusion gaps exist.


Item NO.:                             P004


Payment:                               T/T


Product Origin:                   China


Shipping Port:              Shenzhen


Order(MOQ):                         50

Out-of-Stock
FLANGED CANTILEVER SPRING ENERGIZED SEAL
Flanged seals are a special class of radial seals with an added feature to help retain the seal under rotary forces. The flange is an extension of the heel of the seal, which locates in a counterbore of the housing. At assembly, the seal flange gets pinched in the housing providing a positive mechanical lock that keeps the seal stationary. Flanged seals are an excellent choice for equipment that can be designed with end plates. In these cases, assembly of a flanged seal is simple and provides a robust design as well as a level of redundant sealing on the static side of the gland. Process machinery that require a product to be contained (mixers, augers, spool valves) are good applications of this design.
Out-of-Stock
Single Acting Heavy-Duty Piston Seal
The P005 Series heavy-duty piston seal is a low-friction design, consisting of a PTFE filled seal and a profiled energizer. It is designed for large-diameter, single-acting cylinders in challenging applications, where high pressure and large extrusion gaps exist.



Item NO.:                             P005


Payment:                               T/T


Product Origin:                   China


Shipping Port:              Shenzhen


Order(MOQ):                         50

Out-of-Stock
O RING HEEL CANTILEVER SPRING ENERGIZED SEAL
When considering a rotary service seal and additional gland length is available, an O-Ring Heel Seal provides a level of anti-rotation and redundant sealing. The addition of an O-Ring on the heel of a radial seal creates a high friction interface
at the bore to counteract rotary forces. With proper hardware design, a high level of sealing can be realized, making an O-Ring Heel Seal a good choice where gaseous or low viscosity fluids need to be sealed.
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Piston U-Cup Seal
The P007 Series Piston U-Cup seal is used in a variety of standard-duty applications. Its asymmetrical design ensures that the seal lip forces are optimized for every cross section and diameter. Manufactured in a variety of materials and sizes from 6 mm up to 1600 mm in standard or custom diameters.


Item NO.:                             P007


Payment:                               T/T


Product Origin:                   China


Shipping Port:              Shenzhen


Order(MOQ):                         50

Out-of-Stock
O RING OD CANTILEVER SPRING ENERGIZED SEAL
When considering a rotary service seal and additional gland diameter is available, an O-Ring OD Seal provides a level of anti-rotation and redundant sealing. The addition of an O-Ring on the OD of a radial seal creates a high friction interface at the bore to counteract rotary forces. Because the O-Ring is a lower durometer than the jacket material, it is more compliant and offers tight sealing on the bore. This feature is utilized in equipment such as vapor recovery and vacuum pumps where running friction needs to be low and sealing efficiency high.
Out-of-Stock
Energized Symmetrical Piston U-Cup
The P008 Series Energized Symmetrical Piston U-Cup is a popular and versatile design with a wide range of applications. The design features a primary sealing material that is further energized by an elastomeric element, frequently an O-ring. This allows a high sealing force to be created at the sealing lips or allows the use of seal materials that might otherwise have insufficient compression set resistance. This versatility allows this seal to be used across many markets. Manufactured in a variety of materials and sizes from 6 mm up to 1600 mm in standard or custom diameters.


Item NO.:                             P008


Payment:                               T/T


Product Origin:                   China


Shipping Port:              Shenzhen


Order(MOQ):                         50

Out-of-Stock
Vee Packing
V-Packings are heavy duty multiple Lip Chevron Packing sets, consists of a top adaptor,3x/5x/7x v ring seals and a bottom adaptor.



Item NO.:                             V001


Payment:                               T/T


Product Origin:                   China


Shipping Port:              Shenzhen


Order(MOQ):                         50