What is PD CEN/TS 14807 – GRP-UP pipe structural analysis about?
Buried piping systems need to remain durable as they withstand constant pressure over time. PD CEN/TS 14807 is a Technical Specification that discusses plastics piping systems.
PD CEN/TS 14807 is a guidance document for use with a structural analysis procedure for below-ground installations. PD CEN/TS 14807 discusses limits applicable to glass-reinforced thermosetting plastics (GRP) pipes based on unsaturated polyester resin (UP), used for the conveyance of liquids under pressure or gravity conditions.
Products complying with the applicable GRP product standards EN 1796 or EN 14364, which are not subject to internal pressure, are suitable as long as the analysis shows that the long-term deflection of the installed pipes is limited to 6 %, which is the basic assumption of the GRP pipe product standards.
Products complying with the applicable system standards (EN 1796 or EN 14364), which are subject to internal pressure, are suitable as long as the analysis shows that the initial deflection of the installed pipes does not exceed 3 %.
Note: The approach followed when preparing a general structural analysis procedure does not depend on the nominal size(s) of the pipe(s).
Note: PD CEN/TS 14807 does not specify a particular structural analysis procedure but gives guidance on the selection of a structural analysis procedure.
Who is PD CEN/TS 14807 – GRP-UP pipe structural analysis for?
PD CEN/TS 14807 on GRP-UP pipe structural analysis is useful for:
- GRP pipe and fittings manufacturers
- Sewer and drainage system planners and designers
- Plastic piping system component manufacturers
- Product design engineers
- Quality control and testing personnel
- Contractors/ Plumbers
- Real estate developers/ Estate managers
- Civil engineers
- Local authorities
Why should you use PD CEN/TS 14807 – GRP-UP pipe structural analysis?
GRP-UP, also known as fibreglass, is a tough material known for its high mechanical strength, lightweight, corrosion and temperature resistant properties, thermal insulation and smooth internal surface.
PD CEN/TS 14807 provides you with guidance for the selection of a suitable structural analysis procedures for buried GRP-UP pipes. The design approach is founded on accepted engineering principles and has been demonstrated through field experience. The procedure satisfies the requirements of GRP-UP pipes and is provide dependable long-term performance.
The limiting performance criteria for buried GRP-UP pipes is different from other pipe products, including thermoplastics pipes. PD CEN/TS 14807 recommends that any established structural analysis procedure may be used provided it includes the assessment of short and long-term deflection and buckling resistance.
PD CEN/TS 14807 also discusses aspects such as normal structural analysis procedures covering normal soil installation conditions only. PD CEN/TS 14807 highlights that pipes designed for installations in abnormal or unusual conditions, e.g. in quick soils or a marine sea-bed, may require special engineering. Some structural analysis procedures may include axial effects depending upon the type of joint used.
PD CEN/TS 14807 helps you to minimize product failures and maintain overall piping system integrity when used in corrosive applications.
What’s changed since the last update?
PD CEN/TS 14807:2013 supersedes CEN/TS 14807:2004 which is withdrawn. PD CEN/TS 14807:2013 includes some technical changes with respect to CEN/TS 14807:2004. These include:
- Revised wording to reflect the revisions to GRP product standards EN 1796 and EN 14364
- Revised wording to improve the clarity of the presentation