Mixer-seal limits are published as diameter 40–220 mm, pressure 6–16 bar, temperature −40 to +250 °C, peripheral speed 2–5 m/s. BST 100 is single-acting unbearing, BST 130 double-acting unbearing, BST 120 single-acting bearing, BST 140 double-acting bearing. The About page states service to every sector that needs mixer sealing. The catalogue table lists shaft sizes from 40 mm to 220 mm for chemical, pharma and food mixers.