V sereie single pump 20V( 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14) ; 25V( 10, 12, 14, 17, 21) 35V( 25, 30, 35, 38) ; 45V( 42, 45, 50, 60, 66, 75) V10( 1, 2, 3, 4, 5, 6, ....