Straight gear pump flanges types GP-LK...-G...#K (BSPP female thread) and GP-FL-LK-G (BSPP female thread, flat version). Version with 4 tapped holes. Hole diameter from 30 to 72.5 mm. For maximum operating pressures up to 250 bar. Available in steel. As a complete set with bolts, lock washers and O-ring.