- Length changes in plastic pipelines are commonly caused by thermal expansion due to changes in ambient temperature and changes in the temperature of the media being handled.
- The length change for polypropylene will be 0.0000837 inches per inch of length per degree Fahrenheit temperature change.
- So if the temperature of a 100 foot straight length of pipe is raised from 30°F (-1°C) to 80°F (27°C) it would grow by 5 inches. The pipeline must be installed in such a way that this expansion can accounted for.
- Common practice is to use either expansion loops or change of direction to achieve this. In both of these cases, a length of pipe running perpendicular to the change in length is used to absorb the expansion by being bent.
- High quality system solution with a favorable price to performance ratio
- Great surface finish and leach out characteristics
- High impact strength
- High resistance to chemicals and temperatures
- Performs well over a long period of time
- Outstanding weldability
Fields of Application:
- RO/DI Water Conveyance
- Process Cooling Water
- Chemical Process Industry
- Food Processing
Polypropylene (PP) belongs to the Polypropylene is a thermoplastic from the polyolefin group. PP is a semi-rigid, translucent polymer with good toughness and weather resistance properties.
It has low water absorption and is easily moulded as low cost. Polypropylene is a largely non-polar, partially crystalline thermoplastic with a crystallinity of 60 to 70%. PP has a density of 0.90 to 0.91 g/cm3 which is amongst the lowest densities for all plastics.
PP has a non-swelling and insoluble surface; and is characterized by its outstanding chemical resistance, high thermal resistance and good fatigue strength.