pressure seal gate valve is designed according to API600 standard,can meet the high-temperature,high pressure situation.widely used in power,petrochemical enterprises.this kind of structure makes bonnet seal more reliable,suitable for the temperature rang:-29.c-730.c.

1)design feature:deposit welding hard alloy steelon seat face,flexible wedge,total travel guilding design,0-leakage on body and bonnet,by-pass valve to balance the pressure and easily operated;