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Engineered like nothing else.

When Flexitallic invented the spiral wound gasket in 1912 there was nothing like it. 100 years of innovation later, they introduced the Change™ gasket. Again, there’s nothing like it.

Incredibly robust and resilient, the metal-wound Change™ heat exchanger gasket is designed to deliver the most dynamic seal ever.

The Change gasket is manufactured with proprietary equipment, using a 5-times thicker metal spiral and a unique laser welding process that penetrates completely through the winding, so it requires no inner or outer ring and is easy to handle and install as a double-jacketed gasket. Best of all, it’s proven to perform without fail at least 60% longer than any other heat exchanger gasket – spiral wound, double jacketed, corrugated or kammprofile.

Performs 60% longer than any other gasket
Very high recovery
Compression is more consistent than a spiral or kammprofile gasket
Very low creep
Seals with exceptional tightness, especially thermal cycles
Fits wide range of flanges

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Contact William Johnston & Company Limited

For more information about our Flexitallic products and services that are available world wide, contact us on +44 (0)141 620 1666, Email us or simply complete our online Enquiry Form.

Please note, failure to select the correct materials or products we supply (“the Products”) may result in damage to plant, equipment or property. In some instances, it may cause death or personal injury. We are not designers and do not give advice about design related matters concerning the Products. We can help and assist with the technical specifications for the Products. In specific applications, particularly where critical conditions exist, we will try to assist you within the limitations of the services that we offer. All information supplied by us is intended as technical co-operation outlining the specifications of the different Products which we supply. To the extent permitted in law, no warranty is given in respect of any information supplied by us. The customer must satisfy themselves as to the suitability of the Products for their intended application and use. The correct fitting of Products is the responsibility of the customer. Your statutory rights remain unaffected. Save in respect of death, personal injury or fraud, our entire liability to you, however arising from the supply of Products shall be limited to the £10M indemnity amount provided by our insurers.

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