Yes, when the liquid medium trapped in the valve chamber is vaporized due to the rise of temperature and the pressure in the middle chamber rises abnormally, the medium in the middle chamber pushes the valve seat backward by its own thrust to automatically relieve pressure, so as to ensure the safety of the valve body. For the double seal valve, in order to ensure the safety of the valve, the discharge valve body is added to discharge the accumulation in the middle chamber.
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What is the structure of the floating ball valve?
The ball has no supporting shaft and is clamped by two valve seats in a “floating” state.
What’s structure of V-ball valve?
V-type ball valve is a rotary ball valve with variable notch area to adjust fluid flow. It adopts a spring loaded movable valve seat structure. The valve seat and the ball will not get stuck or separated. It has reliable sealing and long service life. When fully opened, the flow capacity is large, the pressure loss is small, and the medium will not deposit in the valve body cavity.
What’s flow characteristics of V-ball valve?
The flow characteristics of the V-ball valve are approximately equal to 100%, with a wide adjustable range and a maximum adjustable ratio of 100:1
What are the structural features of the V-ball valve?
There is a shearing effect between the V-type notch ball and the metal valve seat. When the medium contains fibers, solid particles or slurry, the V-type notch ball valve will not be stuck, and good sealing performance will still be guaranteed. The eccentric ball valve and ball structure can reduce self wear.
What’s Structure of three-way ball valve?
T Type and L Type.
What is the function of the L type three-way ball valve?
It is used for switching the flow direction of media, and can connect two mutually perpendicular channels.
What is the function of the T type three-way ball valve?
Used for media diffluence, confluence and flow direction switching. T-type tee can connect three channels or two of them.
Main purpose of ball valve?
Cut off and adjust.
What are the main characteristics and uses of butterfly valves?
Simple and compact structure, small volume, light weight, convenient and fast operation, reliable sealing, long service life, especially after breaking through the temperature range in structure and material selection, it can be applied to various media working conditions.
How does the butterfly valve work?
The butterfly valve is closed as a disc. It rotates with the support shaft of the valve body through external force to open and close the valve.
There are many kinds of butterfly valves. According to the product structure and use, which two categories can they be divided into?
Sealed butterfly valve and unsealed butterfly valve
