Couplings

British Standard (BS EN295) When Band-Seal Chemical Couplings up to 600mm internal diameter are used to connect clay pipes which comply with BS EN295, they are Certified under the BSI Kitemark Scheme.
British Board of Agrément (BBA) When Band-Seal Chemical Couplings up to 600mm internal diameter are used to connect any combination of vitrified clay, cast iron, ductile iron, concrete and PVC-u pipes, they are approved by BBA Certificate No 90/2494.
WIS 4-41-01 Assessed under the British Standard Certification Scheme, Band-Seal Chemical Couplings and Bushes from 100mm to 600mm internal diameter, comply with the requirements of Water Industry Specification WIS 4-41 -01 'Specification for flexible couplings for gravity sewerage and drainage pipes'. Licence Number 33388.

Approved Quality System
BS EN ISO 9002 (BS5750)

Band-Seal Chemical Couplings which comply with BS EN295, BBA or WIS 4-41-01 requirements are manufactured under an Approved Quality System which complies with BS EN ISO 9002 (BS5750) and certified by Registered Firm of Assessed Capability Certificate Number Fm1420.

Components
Sleeves and Bushes

Manufactured from synthetic elastomers conforming to the performance requirements of BS EN681-1 BS EN681-1 (Lic No 12100) Elastomeric Material BS EN681-1 (Lic No 7729) Elastomeric Material BS EN681-1 (Lic No 7741) Elastomeric Material The kitemark appears on products which have been endorsed as complying with the relevant European Standard. Full details of the extensive range of products carrying the kitemark are available on request.

Clamp and Shear Bands
Manufactured from Austenitic Stainless Steel, with minimum chrome content of 17% and minimum nickel content of 8%, complying with BS EN 10088-2 and incorporating high torque worm drive adjusting screws.

Product Specification
Couplings shall be Band-Seal Chemical Couplings, produced by Naylor Drainage Ltd of Cawthorne, Barnsley, South Yorkshire and shall have approved Third Party Certification.

Contact the Naylor Technical Department on 01226 794028 / 794033 / 794074 for guidance and availability of Chemical Couplings and Chemical Adaptor Couplings for your application.