Application and Selection.
Correct sealing helps control melt bypass and external leakage. Material, surface finish, thickness and mating surfaces must suit the operating duty.
- Metallic options
- Aluminium, copper alloys and stainless steel
- Other constructions
- PTFE and hollow metal rings
- Geometry
- Customer defined profiles and dimensions
Technical Information
Open a section to view the details, tables and illustrations.
Metallic Gaskets ● PTFE Gaskets ● Hollow Metal Rings
Technical Selection
Match the seal to the approved equipment drawing and operating duty. The final material, dimensions and construction form part of the agreed project specification.
Metallic Gaskets
Aluminium, Copper and Stainless Steel
Compare the available forms and finishes with the existing pack drawing before specifying a replacement.
Material & Configuration Options
Aluminium | Copper / Copper Alloy | Stainless Steel |
 |  |  |
FormsCircular, rectangular, bowl, semicircular, waist and custom profiles. | FormsCircular, rectangular, bowl, semicircular, waist and custom profiles. | FormsCircular, rectangular, semicircular, waist and custom profiles. |
Surface OptionsChrome plating or anodising. | Surface OptionsChrome or nickel plating. | Surface OptionsSpecify the required grade and finish in the enquiry. |
Dimensional Control
All families can be made to customer dimensions. Submit the approved drawing, including profile, thickness and tolerances.
Replacement Review
For an existing pack, identify the sealing location and current part reference. Include the mating component drawings where available so that the complete interface can be reviewed.
PTFE Gaskets & Metal Sealing Rings
Material and Construction Options
PTFE gasket Hollow metal ring - cutaway illustration
Parameter | PTFE Gaskets | Hollow Metal Rings |
|---|---|---|
Construction | Unfilled PTFE or grades filled with glass fibre, carbon fibre or graphite. | Formed tubing with butt welded, polished ends. |
Material / Finish | Confirm the specified compound. | Copper, stainless steel, nickel alloy or Monel; gold, silver or nickel plating options. |
Geometry | Customer defined profiles and dimensions. | Circular, rectangular or waist shaped; custom dimensions. |
Service Compatibility
Review the polymer, chemical exposure, pressure, temperature and equipment design together when selecting a gasket.
Project Specification
Record the complete material specification and sealing interface drawing in the enquiry. Identify the current construction and the reason for replacement or change so that the review starts from a defined equipment basis.
Pressure and temperature limits are project specific and require confirmation for the supplied construction.
Technical Selection
Define the Sealing Interface Before Ordering
Use the following information schedule to prepare a technical enquiry for an existing spin pack or a new assembly.
Information Category | Data to Include |
|---|---|
Equipment & Location | Machine / OEM reference, pack type, sealing location and current part number. |
Drawing & Dimensions | Approved drawing and revision; profile, critical diameters, thickness, tolerances and mating interfaces. |
Operating Duty | Polymer and grade, throughput per pack, melt temperature and pressure profile. |
Existing Seal | Current material, coating or finish, service history and photographs of the removed component. |
Cleaning & Maintenance | Cleaning practice, change cycle and condition of the seating surfaces. |
Required Outcome | Reason for replacement, leakage or bypass observations, and the performance change sought. |
Supply Requirement | Trial quantity, expected annual consumption, required delivery and documentation. |
Drawing & Sample Review
Where a verified sample is supplied, link it to the equipment and drawing reference. Identify critical dimensions and approval requirements before confirming production.
Design Authority
The approved drawing, agreed material specification and validated process limits govern the supplied construction. Review a proposed change to the gasket together with its mating components and assembly requirements.
Prepare Your Enquiry
What to Send Us.
Equipment and sealing location; gasket drawing; current material; coating; critical dimensions; temperature and pressure; required quantity.
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