DC15218eries sell-oparated pressure regulating valve is an execution praduct that does not requtre any external energy and automatealy adlusts the valve by using the energy of the medium to be adjusted. The biggost feature of this product is that it can be used in places without electricity and gas, and save energy. The pressure setting value can be adjusted freely within a certain range. According to ditterent voltage regulation methods, it can be divided into DC 1521B series valve regulator type and DC1521k valve frontregulator type. The dotalis are as follows:
DC1521B Series post-valveregulator
Regulating valve for controlling the pressure behind the valve.The valve action mode is pressure-closing type. It works as follows:
The medium liows into the valve body from the direction of the arrow, and is output
after being throttled by the valve seat and tha valve core. The other way is through the
pressure taking pipe(the condensor is added when tho medium is steam) to the actuatorr
to act on the diaphragm, so that the valve core will be carrespandingly displaced to
achieve the purpose of decompression and vollage stabilization. If the pressure behind
the yalve ingrgases, the force acting on the diaphragm increases, the spring
pressure behind the valve drops to the set value. Similarly, if the pressure behind the
valve decreases, the force on the diaphragm decreases. Due to the reaction force of the
spring, the valve core is driven to increase the valve opening degree until the pressure
behind the valve rises to the set value.
Main technical parameters
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