Piston-rod seal (U seal)

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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U seal size chart

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Imported pu seals
U Seal
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Imported pu seals
U Seal
8
18
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PU
Imported pu seals
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9
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Imported pu seals
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Imported pu seals
U Seal
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12
22.5
8
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14
22
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24
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Piston-rod seal

Piston-rod seal is a single acting U-symmetric seal. That is why it is called U seal. It is designed to have symmetrical lips in order to be used in both for rod and piston applications. In addition, It has mechanically trimmed lips. Therefore, it creates excellent contact pressure in both dynamic and static one-way sealing. Since it has symmetrical lips, it is applicable in both for rod and piston applications. In addition, it can be used as shaft seal because it has good oil film returning ability. In conclusion, this seal has a good one-way sealing capability for piston and Rod Seal application.

Polyurethane (PU) is a special material that offers the resilience of rubber combined with the toughness and durableness. It allows people to substitute rubber, plastic with PU. Polyurethane can reduce factory maintenance and OEM product cost. Polyurethane has better abrasion and tear resistance than rubbers, and offering higher load bearing capacity.

Advantages

  1. Superior static and dynamic sealing effect.
  2. Wide range of dimensions.
  3. Easy assembly into closed grooves.
  4. Simple groove design.
  5. Economical sealing solution.
  6. Easy accessible.

Application of U seal

Construction machinery, fork lift trucks, injection moulding machines, Hydraulic press machines, agricultural machinery, loading platforms and standard cylinders etc.

Operating Conditions

  • Material: Polyurethane (PU)
  • Temperature: -35C to 10oC
  • Speed: up to 0.5m/s
  • Medium: Hydraulic oils
  • Pressure: up to 31.5MPA
  • Colour: Blue
  • Hardness: 90 – 95 shore A

Installation

This seal fits easily in closed grooves as per the sizes. You should use special tools during seal installation. But, the assembly tools must be of soft material and have no sharp edges. Otherwise, the seal might gets damaged. Before installation the wiper must be oiled with system oil.

For more information, you can visit here..

 

UNITED ELASTOMER

PU Hydraulic Seal Manufacturer & Importer

Piston-rod seal (U seal)
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