Wellhead Hydraulic Safety Valve

Wellhead Hydraulic Safety Valve

  1. Brief introduction
    Wellhead hydraulic safety valve is installed on wellhead and is used for closing well and preventing blow-out in testing process. Remote hydraulic control ball valve to open and close, operate convenient and reliable. This set of tool is ideal selection for oilfield operation, which has advantage of simple structure, maintenance convenient and safety reliable.
     
  2. Structure feature
    Normally, ball valve is closed. Increase pressure on floating piston by manual pump to open ball valve, open releasing valve on manual pump to close ball valve rapidly.
    Besides, one set of emergency closing system is equipped on it. When unexpected accident happen around well head, just open pressure releasing valve of emergency closing system to close ball valve and no need to operate manual pump. Balance valve which installed on bottom nipple is used for balancing pressure above & below ball valve rapidly when ball valve is closed.
     
  3. Technical specification
    OD (mm) ID (mm) Length (mm) Working pressure (MPa) Service circumstances Working temperature
    Ф165 Ф57 1632 70 Mud, crude oil and water, which without H2S -29℃~+121℃

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