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S03-S Rod Seal

Model S03-S / S03 / SKF (Official website) / Listed on page 30 of the document

Single-acting PTFE rod seal with built-in helical spring. Excellent chemical and heat resistance.

Last verified: (date the content was verified against the source document)

S03-S Rod Seal on page 30 of SKF "切削加工シール製品ラインアップ"
Source: SKF「切削加工シール製品ラインアップ」page 30
A reduced image of the relevant page is quoted from the document. Copyright belongs to SKF.Request removal

Specifications

Operating Temperature Range -200~+260 °C
Maximum Sliding Speed 1 m/s
Maximum Operating Pressure 400 bar

S03 model comparison

Compare 4 models in the same series by specification.

Model Maximum Operating Pressure Operating Temperature Range Maximum Sliding Speed
S03-F 200 bar -55~+200 °C 1 m/s
S03-P 400 bar -50~+100 °C 0.5 m/s
S03-S This product 400 bar -200~+260 °C 1 m/s
S03-SX 400 bar -200~+260 °C 1 m/s

How to choose Rod Seals

Points to check when selecting, with the values for this product (S03-S).

  1. 1. Match rod diameter and groove dimensions

    A seal is specified by the combination of applicable rod diameter and installation groove dimensions. The applicable rod diameter of listed products is 5 to 1000 mm. When fitting into an existing groove, check on the drawing that, in addition to the rod diameter, the groove width and groove bottom diameter match the standard combination.

  2. 2. Verify cross-section and groove width

    Cross-section dimension (c/s, radial thickness) corresponds to the groove depth, and groove width L corresponds to the axial length. The listed range is 2.45 to 20 mm cross-section and 2.2 to 50 mm groove width. If dimensions do not match, insufficient squeeze causes leakage, and excessive compression causes early wear.

  3. 3. Maximum operating pressure and backup rings

    This product: Maximum Operating Pressure 400 bar

    The maximum operating pressure of listed products is 160 to 700 bar. At high pressure, the seal tends to extrude into the clearance and fail, so consider types with square or trapezoidal backup rings. Confirm that the pressure, including pressure surges (momentary pressure rises), stays within the upper limit.

  4. 4. Select material by temperature and fluid compatibility

    PU offers excellent wear resistance, while PTFE has high chemical and heat resistance and low friction. Rubber-based materials vary in oil and heat resistance depending on their compound. Operating temperature ranges differ by material, so select a material that suits the working fluid, such as hydraulic oil, water, or air, and the operating temperature.

  5. 5. Check the upper limit of sliding speed

    This product: Maximum Sliding Speed 1 m/s

    The maximum sliding speed of listed products is 0.5 to 10 m/s, which varies greatly by material and type. Use at high speed accelerates deterioration due to frictional heat. Check that the maximum cylinder speed is within the upper limit, and consider low-friction PTFE-based types for high-speed applications.

  6. 6. Select seal type and operating method

    Rod seals are basically single-acting types that receive pressure from one side. In high-pressure systems, there is a method of combining them with buffer seals. For large machines that are hard to install or have worn rods, chevron packings, which can be selected as split types, are suitable.

This guide was written by AI based on the listed products' documents and specification items.

About Rod Seals and all products

Description

Asymmetric-profile PTFE rod seal with built-in helical spring. Suitable mainly for use in covers, valve seats and stems.

Features

  • Built-in spring
  • Chemical resistance
  • Heat resistance

Applications

  • Covers
  • Valve seats
  • Stems

FAQ

Q. What are the operating temperature range and maximum operating pressure of the S03-S Rod Seal?
A. The operating temperature range is -200 to +260 °C, and the maximum operating pressure is 400 bar.
Q. What applications is the S03-S Rod Seal suitable for?
A. It is suitable for use in covers, valve seats and stems.
Q. What are the material and structural features of the S03-S Rod Seal?
A. It is an asymmetric-profile rod seal made of PTFE, with a built-in helical spring. It offers excellent chemical and heat resistance.
Q. What is the maximum sliding speed of the S03-S Rod Seal?
A. The maximum sliding speed is 1 m/s.

Written by AI based on the content of the source documents.

Source documents

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