Asa Sae 2 Din50 Af50 Butterfly Suction Unit Sdak0050tASA Suction Unit ***IMPORTANT NOTE if item is not in stock delivery from factory is 3 4 weeks The asa suction unit has been developed to provide a compact unit in hydraulic systems. The asa butterfly flange with SAE connections allows the combination with an elastic element (rubber compensator) to make a short compensating and economical connection with the pump port. The asa suction unit is screwed to the asa adapter flange, which is welded to the