CPVC-ROHR MIT EINER 25 HÖHEREN HYDROSTATISCHEN AUSLEGUNGSBASIS ALS UNTER ASTM D2846 GEFORDERT

CPVC-ROHR MIT EINER 25 HÖHEREN HYDROSTATISCHEN AUSLEGUNGSBASIS ALS UNTER ASTM D2846 GEFORDERT

CPVC pipe in diameters in the range from 15 mm (0.5 inch) to 15.24 cm (6 ins), to carry hot and cold aqueous streams under 690 KPa (100 psi) pressure and 82.2° C. (180° F.) in continuous service, is extruded from a compound in which the CPVC has a high Cl content in the range from 66.5%-70%, when mo...

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Bibliographische Detailangaben
Hauptverfasser: MANGO, ROCCO A, NEWBY, ROBERT S, BACKMAN, ARTHUR L, OLAH, ANDREW M
Format: Patent
Sprache:ger
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Zusammenfassung:CPVC pipe in diameters in the range from 15 mm (0.5 inch) to 15.24 cm (6 ins), to carry hot and cold aqueous streams under 690 KPa (100 psi) pressure and 82.2° C. (180° F.) in continuous service, is extruded from a compound in which the CPVC has a high Cl content in the range from 66.5%-70%, when modified with either of two specific impact high rubber modifiers in an amount greater than 5 parts but no more than 6 parts per 100 parts of CPVC. Extruded CPVC pipe provides a HDB measured according to ASTM D2837-01 which is 25% or more greater than that required for commercial pipe as specified in ASTM D2846. As a result, both SDR-11 and SDR-13.5 pipe are produced which provide a HDB of at least 1250 psi (8.62 MPa) at the 100,000 hr intercept.