signal butterfly valve using note 1, this butterfly Industrial Valves can be installed in any position on the pipeline. 2, butterfly valve installation position should guarantee the use and convenience of maintenance and replacement. 3, the butterfly valve installation can not consider line medium flow direction, allowing two-way flow. 4, butterfly before installation should be stored in a dry indoor place, valve plate slightly open & 4 deg. ~ 5度; 。 5, butterfly before installation should undertake the following work: a, carefully check whether the usage is consistent with the butterfly valve performance specifications. B, clean inner cavity and the sealing surface, there is no dirt clinging to the body, don't open/close the butterfly plate before cleaning. C, check whether transmission device and the butterfly valve flange connection can be *. 6, butterfly when pipe clamp, pay attention to whether the relay uniform *. 7, the butterfly valve is installed, the pipeline strength test, Industrial Valves plate must be in an open position. 8, the butterfly valve is installed, should periodically check, the check the main projects are as follows: a, the butterfly valve seat and type O sealing ring damage. B, the valve plate seal face seal performance. C, butterfly valve repair after assembly, opening and closing rotates can not have jam phenomenon. D, butterfly valve repair after the assembly, should seal performance test in accordance with requirements. F, after each maintenance, should be detailed records for reference.

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