TY - JOUR T1 - RESEARCH OF LOCAL HYDRAULIC RESISTANCE IN PVC FITTINGS A1 - Marek Kalenik A1 - Beata Witowska JO - Acta Sci. Pol. Architectura} VL - 6 IS - 3 SP - 6 Y1 - 2007 UR - https://www.architectura.actapol.net/volume6/issue3/_3_.pdf SN - 1644-0730 KW - coefficients of local resistance, PVC fittings, knees, three-way-pipes AB - Results of research of the coefficients of local resistance in PVC knees and three-way-pipes were introduced in the article. Research, were carried out on the measuring stand built in the laboratory. Measurements were made for fittings about the angle of 90° inclination, produced by two producers, PVC fittings. Research of the coefficients of local resistance were carried out in beloveds randomly, three knees and three three-way-pipes. Determined coefficients of local resistance of research, they compared with coeffi cients of local resistance determined according to the applying PN-76-M-34034 norm. ER -