Liner Seals and Rope Seals

Knitwire Trading (PTY) Ltd manufactures and supplies liner seals and knitted metal rope seals for use in high-temperature and high-pressure sealing applications. These products are commonly used as sealing elements in expansion joints, ducting, and process equipment where flexible yet robust sealing is required.

Knitted metal rope seals provide an effective alternative to conventional packing or purging methods, offering improved sealing reliability and long service life.

Liner seals and rope seals are produced from knitted wire mesh formed into solid, flexible rope constructions. The dense interlocking loop structure provides excellent resilience, allowing the seal to conform to mating surfaces while maintaining sealing pressure.

These products perform reliably in environments exposed to heat, vibration, and mechanical movement.

• Expansion joint seals
• Ducting and exhaust systems
• Process equipment and vessels
• Industrial furnaces and kilns
• High-temperature flanged connections

Liner seals and rope seals can be manufactured from:

• Stainless steel (various grades)
• Exotic alloys for extreme temperature or corrosive environments

Material certification can be provided where required.

Seals can be produced to custom diameters and lengths to suit specific installation requirements.

Rope seals can be installed directly into grooves or channels, or used in conjunction with retaining systems depending on the application.

The flexible construction allows easy installation even in confined or irregular spaces.

The engineering team at Knitwire Trading (PTY) Ltd works closely with customers to define the optimal seal size, material, and construction for each application.

In-house tooling and manufacturing enable rapid production of custom sealing solutions.

• Durable, heavy-gauge construction for industrial applications
• Custom diameters and lengths to suit your project
• Raw material certified to 3.1b standards
• Suitable for high-temperature, chemical, and mechanical environments
• Fast turn around for urgent requirements