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| Polypropylene pipe or fittings are joined to each other by heat fusion or with mechanical fittings. Plastics may be joined to other materials by means of compression fittings, or other qualified types of manufactured transition fittings. There are many types and styles of fittings available from which the user may choose. Each offers it’s particular advantages and limitations for each joining situation the user may encounter. Contact with the various manufacturers is advisable for guidance in proper applications and styles available for joining as described in this document. There will be joining methods discussed in this document covering both large and small diameter pipe. |
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There are two types of heat fusion joints currently used in the industry |
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Butt Fusion |
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Socket Fusion |
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Butt Fusion |
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Environmental resistance to most organic and inorganic chemicals. |
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Good material strength and fatigue resistance |
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Operating temperature range -10 to 110°C (14 to 230°F) |
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Fusion Welding |
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Socket Fusion |
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Water Treatment |
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Waste Treatment |
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Di and Specified Water Applications |
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Chemical process Industry |
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Advantages |
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Good Corrosion-Resistance |
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High Impact Strength |
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High thermal ageing and Thermal forming resistance |
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Outstanding Weldability |
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