ANSI forged steel Gate Valve

ANSI forged steel Gate Valve

ANSI forged steel gate valve is designed and manufactured according well to API 6D.With its solid wedge. It is suitable for small port and high pressure. Gate valve has “H” type , flexible single wedge. It can compensate the distortion of body. So it has reliable sealing and prevent wedge against difficult operation because of overload. It is suitable to steam and other high temperature medium.

Specifications of ANSI forged steel gate valve are:1) Nominal diameter: 2”-24” ;2)Applicable Temperature: -29℃～425℃（steel）-40℃～-550℃ (stainless steel) ;3)Nominal pressure: 150Lb 300Lb 600Lb 900Lb 1500Lb ;4)Applicable Medium: water 、gas、oil、and other causticity medium. The series of gate valves include cast-steel gate valve and forged steel gate valve. They are designed and manufactured according to ANSI B16.34。Its wedge has two type : solid wedge and flexible wedge, so It can be used for different pressure。Gate valves have back seal. Back seal of forged-steel gate valve is weld with stainless steel. So it has perfect sealing. Its maintenance is convenient. It is widely used in petroleum、chemistry、water treatment industries.

In their simplest construction, gate valves have a valve stem, or spindle, which projects from the waterway to the outside atmosphere, for controlling the gate. This necessitates some method of retaining the fluid in the pipe line. Rope packing with a gland was the principal means of resisting this leakage. The gland is still the most widely used method. However, the materials used for the packing have been changed and improved. Today gate valves are made in some instances and for special applications with trick glands such as "O"rings or bellows seals; and, for atomic jobs, where any leakage would be disastrous, with canned or hermetically-sealed construction which eliminates the need for a gland.