The asa butterfly flange with SAE and DIN connections allows the combination with an elastic element (rubber compensator) to make a short compensating and economical connection with the pump port.
The lever position can be changed through the new mechanism. The handle direction (clockwise or counter clockwise) can be changed by turning the switch bracket.
Please note that the butterfly flange may only be opened in mounted state and with greased or lubricated sealing. The adapter flange may only be welded with demounted butterfly flange.