Model Flow Pressure Power Speed L/min gpm bar psi hp kw rpm BM4-3 3 0.8 70 1100 1 0.75 1450 BM4-5 5 1.3 70 1100 1.5 1.1 1450 BM4-8 8 2.1 70 1100 2 1.5 1450 BM4-12 12 3.1 70 1100 3 2.2 1450 BM4-15 15 3.9 70 1100 4 3 1450