Spring loaded down quickly adjustment structure of the pneumatic valve (4)

down quickly pneumatic butterfly valve, hydraulic pneumatic valve spring - Lord Spring drive, hydraulic and electric control, etc. Open the pneumatic valve, the system of driving away at the bottom of the pneumatic valve piston instructions ( The electronic control box is set to the remote control) Into the cylinder, hydraulic work, hydraulic oil, the spring is compressed, and storage tanks in the spring. When in an emergency work system, the butterfly will receive incoming signals next spring, to? S, so as to protect piping and equipment of closing time acted quickly shut down.
because working in high temperature gas medium pneumatic quickly close the valve, the pneumatic butterfly valve, the use of a special structure design.
( ) Three eccentric disc structure, in the process of opening and closing butterfly pneumatic valve, sealing surface of the disc will immediately in the opening moments from the pneumatic valve sealing surface in the process of closing, only in the closing moments, the disc sealing surface contact and the compressed air valve sealing surface sealing, to ensure between the wear and tear on the seal face is completely eliminated. The same tapered structure of the ability of self-image, to ensure that the neutral CD.
( ) Metal floating seal - a plate Laminated seal can form graphite floating seal, when the temperature changes during the installation or use of the butterfly, micro ring floating body can compensate for distortion, pneumatic valve seal is always best.
( ) At high temperatures using pneumatic valve shaft temperature compensation mechanism, at the same time, considering the influence of the thermal expansion pneumatic valve shaft, to prevent the pneumatic valve pneumatic valve shaft can't bear the normally open, the axis and in addition to temperature compensation mechanism of support on the disc of pneumatic valve shaft spring gasket several sets of the same effect, caused the temperature changes automatically adjust the size, excess negative factors caused by the deformation compensation, to ensure that the CD does not shift shaft leakage, whether the damage.
quick close the pneumatic valve normal work state ( The power supply) Is a normally open state, only in the system ( Closed) Failure only want to quickly shut down. According to the characteristics and requirements of product, it is necessary to drive automatic reset function, can be driven by pneumatic valve when boot, shutdown automatically reset when the drive and close the pneumatic valve. Many different kinds of automatic reset drive, pneumatic valve, high performance safety into consideration and the structure of the drive with a fork, by squares, fork, cylinder liner, piston, connecting rod, a spring and the main spring return spring cylinder, etc.
quickly closed within s time requirements of pneumatic valve, at the same time, considering the performance, the alloy steel pin and contact fork to partially filled with cylindrical roller bearing, rolling pass to fork cylinder piston force, both to reduce friction, extended the human life span, and improve the efficiency of the torque transmission. As a result of the spring action mechanism, the safety of the spring made a serious review, independent security screw, so once for field installation and removal of spring, no special tools, and ensure the safety, the necessity of the operator. The spring load and unload safe and convenient. Keywords:

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