Carpenter & Paterson Ltd WitchLiner Products | Carpenter & Paterson Ltd



Carpenter & Paterson Ltd provide an extensive range of isolation products which prevent bimetallic corrosion and offer a degree of noise reduction caused by vibration.
Our WitchLiner range of products are to suit Stainless Steel, Duplex, Super Duplex and Cupro-Nickel Piping and incorporates moulded isolation.
This material offers extensive performance qualities, and can be utilised in a wide range of pipework installations.

Principal Benefits

  • Clamping damage restraint to thin wall pipes
  • Prevention of electrolytic erosion between dissimilar metals
  • Curtailment of noise and vibration
  • Cost-effective and time saving
  • Large standard ranges available
  • Other special designs and models available to suit customer requirements


Properties and Isolating Material

The steel parts of both the U Bolts and Clamps are isolated from the pipe utilising flame – retardant Silicone rubber elastomer. As an option, for temperature range –30° C to 100° C all components may be supplied using 70/80 FR Neoprene Isolator Material.

Surface Finish (Metallic Components)

The standard finish on the U Bolts is bright zinc plated and passivated, in accordance with BS 3382, whilst the surface finish on the clamps is hot dip galvanised in accordance with BS EN ISO 1461. Alternative surface coatings are available if required, such as cadmium plating or sheradizing.
For further information please click here to view our catalogue download page.