Assistant valve enterprise to win the world

Assistant valve enterprise to win the world
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Stainless steel self - sealing high pressure gate valves

Product specification

Size:NPS2"~12"
Pressures:Class150~600
Material:Stainless steel
standard:API 600、API 6D
End Connection: flange、Butt welding



Product feature

Production of Z61Y-250, Z61Y-320 high pressure power station gate valve: manual, butt welding connection form, clear rod wedge type rigid single gate, seat sealing surface material is carbide, nominal pressure PN250~PN320, body material is carbon steel high temperature and high pressure power station gate valve.


High temperature gate valves, also known as power station special valves, are mainly used in the pipeline of various systems in thermal power stations to cut off or connect the pipeline medium. Applicable medium: water, steam and other non-corrosive media. Compared with other valve products, the power plant valve is characterized by high temperature and high pressure, unique self-sealing design, the higher the pressure, the more reliable the seal. Due to the performance and technical characteristics, the special working conditions make the product also formed the characteristics that other products can not be replaced.


1, open and close frictionless. This function completely solves the problem that the sealing surface of the traditional valve is affected by friction between the sealing surface.


2, top type structure. The valve installed in the pipeline can be directly online inspection and maintenance, can effectively reduce the device parking, reduce the cost.


3, single seat valve design. It eliminates the problem that the medium in the valve chamber affects the use safety due to abnormal pressure boost.


4, low torque design. The specially designed stem can be opened and closed easily with a small hand.


5. Wedge sealing structure. Valve is provided by the mechanical force of the valve stem, the wedge of the gate is pressed to the seat and sealed, so that the sealing of the valve is not affected by the change of pipeline pressure difference, and the sealing performance is guaranteed reliably under various working conditions.


6. Self-cleaning structure of sealing surface. When the gate tilts away from the seat, the fluid in the pipeline passes 360 degrees uniformly along the gate sealing surface, which not only eliminates the local flushing of the seat by the high-speed fluid, but also washes away the aggregates on the sealing surface, so as to achieve the purpose of self-cleaning.



Manufacturer

DONGGONG VALVE GROUP CO.,LTD.