You may required the following vb.net code for your storedprocedure.
Dim spName As String = "gas2"
Dim sqlConnection As New SQLClient.SqlConnection("ConnectionString")
Dim sqlCommand As New SQLClient.SqlCommand
sqlCommand.Connection = sqlConnection
sqlCommand.CommandType = CommandType.StoredProcedure
sqlCommand.CommandText = spName
sqlCommand.Parameters.AddWithValue("@action", Action)
sqlCommand.Parameters.AddWithValue("@serial_no", serial_no)
sqlCommand.Parameters.AddWithValue("@gas_name", gas_name)
sqlConnection.Open()
sqlCommand.ExecuteNonQuery()