Multiple switch Flapper type Formation Isolation v

           一、Overview:
             Multi open/close High-temperaturetype Formation Isolation valve based on the company many years of experience, and the existing valve type Formation Isolation valve design improvements, By customer demand for the development of heavy oil steam injection wells designed to enable the ball valve can be used in the 350 ℃high temperature environment to maintain long-term reliable sealing. 
 
二、Application:
    Provides use with high temperature Wells, Also can be used as downhole shut-in device; After close the ball valve heat loss will reduced through the wellbore, ensure the steam injection of thermal effect.
 
三、Feature:
    All metal seal design, between the ball and seat design metal hard seal structure, the special use a metal seal patent technology, guarantee the floating seat under the environment of high temperature of two-way dynamic seal.

四、Specifications:
 

Casing	ID	Max OD	Temperature	Working Press
	（in）	（in）	（℃）	（psi）
9 5/8″	4.8（Φ121.9mm）	8.1（Φ206mm）	≤204	5000