1. Define the base pipe
The coating description does not replace the steel pipe specification.
- Provide steel grade, pipe standard, outside diameter and wall thickness.
- State length, quantity and welded/seamless construction requirements.
- Describe the conveyed medium, design conditions and installation environment.
2. Define inside and outside protection
Treat internal lining and external coating as separate requirements. A colour or photograph alone does not identify a coating system.
- State the coating system required by the project, such as the specified TPEP arrangement.
- Provide the layer specification and required coating thickness.
- Include end cutbacks, field-joint treatment and handling requirements.
3. Agree acceptance and packing
Set the inspection scope before ordering so it can be included in the quotation.
- List required thickness, adhesion or holiday detection checks where applicable.
- Specify the acceptance standard and required inspection records.
- Confirm supports, lifting protection, end caps and delivery destination.
