Component Specification
All Denlok® pipes and assemblies are manufactured in accordance with
BS EN295-7 Requirements for vitrified clay pipes and joints for pipe jacking.'
Denlok® pipes and joint assemblies are manufactured in accordance with
BS EN12889: 2000 Trenchless construction and testing of drains and sewers.'
Joint components fully comply with the requirements set out in the BS EN295-7 together with the following joint material components standards:
Joint Component Standards
Sleeve - manufactured from stainless steel complying with:
| EN88 - 1: 1986 |
Stainless steel - Part 1:
Technical delivery conditions for bars, wire rod and forgings.
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| EN88 - 2: 1986 |
Stainless Steel - Part 2:
Technical delivery conditions for sheet, plate and strip for general purposes. |
| EN1008.2 1.457 |
Ti stainless steel is used as standard or customers own specification. |
Sealing components - manufactured from elastomer complying with:
| ISO/DIS 4633:1986 |
Rubber seals - joint rings for water supply, drainage and sewerage pipe lines. Specification for materials. |
| ISO 3302: 1990 |
Rubber - Dimensional tolerances for use with products. EPDM rubber is used as standard or customers own specification. |
Joint packing rings - manufactured from either EPDM for use with the NC type joint or wooden particle boards for use with the NS type joint all complying with:
| Pr EN312: Part 1: |
Particle boards - Requirements. |
| Pr EN312: Part 4: |
Particle boards - Requirements for load bearing boards for use in dry conditions. |
| Pr EN312: Part 5: |
Particle boards - Requirements for load bearing boards for use in wet conditions. |
| ISO 3302: 1990 |
Rubber - Dimensional tolerances for use with products. |
Quality Assurance
Naylor Drainage manufactures its products under the control of an approved Quality Assurance System complying with the requirements of BS 9001:2000. Naylor Drainage Ltd is a Registered Firm of Assessed Capability (BSI Certificate No. FM1420).
Third Party Assurance
Denlok® is Third Party Certified by BSI Quality Assurance under Licence No 20173.
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