China TKFM double flange connection cast steel worm drive PTFE seal butterfly valve

China TKFM double flange connection cast steel worm drive  PTFE seal butterfly valve

  2015 TKFM low pressure flange connection 4 inch high performance ptfe butterfly valve

TKFM gear operated flange connection metal and PTFE seal butterfly valve

 1.What's payment terms?   30% payment in advance, 70% balanced before delivery.  (if total value is USD$ 500, we suggest 100% payment in advanve.)

2.What's MOQ?   One set.    (if small size, we can check if free sample or not, freight need to be paid by customer.)

3.How control the quality of ball valve?

Select high quality raw material; Strict required during machining; Seat material comply with food grade; Tested twice to insure zero leakage; First copper plating disc, then nickle plating disc to increase the adhesiveness

4.Delivery time?

10-30 days after received the advance payment.  (if stock, about 10 days)