Pu seal size chart is given blow. PU seals have different sizes as per International standard. These sizes are determined by Piston od, cylinder groove id & cylinder groove thickness. Pu hydraulic seals are one of the most important parts of the hydraulic cylinders. Most of the hydraulic cylinder seals are Pu seals. Polyurethane Seal can reduce factory maintenance cost and OEM product cost. Pu hydraulic seals have better abrasion.
Pu seal standard size chart :
Piston-rod seal size chart
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 | U-cup Piston-rod seal is a single acting U-symmetric seal. It is designed to have symmetrical lips in order to be used in both for rod and piston applications.
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Wiper Seal size chart
Rod Seal size chart
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 | Double lip Rod seal has two sealing lips. It is the most critical seal on any type of fluid power equipment. It prevents leakage of fluid from the cylinder to the outside. |
Pneumatic Rod Seal size chart
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 | EU Pneumatic Rod seal is a high performance rod seal and wiper combination, designed specifically for pneumatic applications. It gives significant improvements in cylinder performance in low lube air conditions and be used in long and short stroke applications. |
Piston Seal :
Piston seals are located between the piston and the cylinder wall in a cylinder. It creates a pressure barrier and prevent fluid passing the piston. This pressure is required to control the cylinder motion or to maintain the position of the piston when at rest. Clearance between piston and cylinder wall is extremely tight. Piston seal has a vital role to maintain the relationship between these reciprocating components. Thus, correct seal size and material is critical to the performance of the cylinder.
UNITED ELASTOMER
PU Hydraulic Seal Manufacturer & Importer