When the pressure sensor testing to directed valve pressure, the lower pressure valve valve opening decreased; After testing to reduce the pressure valve pressure decreases, and reduce the pressure Industrial Valves valve opening, to satisfied stem requirements. Steam to reduce the pressure valve in the pipeline should ordinary water there is no danger. Reduce pressure valve generally have (~ DN100 wait for a variety of specifications, the valve before into office after the Marine valves, pressure for & lt; 1 mpa and 0. 1 to 0. 5 mpa, regulating range error is & amp; plusmn; 5 ~ 10 one hundred percent one hundred percent. Steam to reduce pressure valve - — The valve must be in a certain extent, reduce pressure ratio value is higher than the system; Even when the maximum or minimum flow it should also be able to is the utility or the utility stem signal of a response. Ordinary reduce import pressure differential pressure valve requires a 0 or higher. 2Mpa。 Reduce the pressure valve should be installed before the filter device, in case of medium of debris into the lower pressure valve, affect their performance. These valves should be useful for stem range selection, namely the maximum flow of 20 to 80 one hundred percent and one hundred percent. Steam to reduce the pressure valve is a must have accessories, pneumatic control valve is the main utility will air pressure reducing and secure to a fixed value, with easy to valve to obtain reliable source power for control. These two types of qualifications for the best proportion of stem flow valve itself special properties and flow range. Steam to reduce the pressure valve is suitable for use in water, steam, air medium pipeline, through adjusting the inlet pressure decreases to a certain demand of outlet pressure, when the inlet pressure and flow rate changes, to the medium itself + 羭 wisp of semi-automatic for outlet pressure within a certain range, but the difference between the inlet pressure and outlet pressure must be zero or more. 2 mpa/CM after understanding the principles of steam lower pressure valve, its project of installation and use pay attention to the things will be easier to clear: reduce the pressure Industrial Valves Y43H - 16, with 0. 05 ~ 0. 4 mpa, Y43H - 25, equipped with 1 ~ 1. 6 mpa, Y43H - 40, equipped with 1 ~ 1. 6 mpa, 1。 6 to 2. 5 mpa adjusting spring, Y43H - 64, equipped with 1 ~ 3 mpa adjusting spring, the factory equipped with 0 in the valve. 1 ~ 1 mpa, spring, and the rest with the valve side, the user can according to the amount of export pressure value options. Steam to reduce pressure valve should be installed in the place where is easy to operation and maintenance, and be sure to rise steeply on the level piping installation, attention should be paid to make the pipe flow direction of medium quality and the direction indicated by the arrows on the valve body, do not reverse. Steam to reduce the pressure valve factory, regulating spring uncompressed, at this time the main valve disc and pay a disc in the closed state, when used according to clockwise to adjust screw, compression adjusting spring, make the membrane valve open move pay disc, medium by a hole into the hole after paying the seat to b above the piston, piston under the effect of the medium pressure, leave the main move down to promote the main valve seat valve, make the medium flow direction valve. By c hole in the diaphragm below at the same time, when the valve after pressure more than the setting pressure, push the diaphragm up regulating spring compression, pay the disc to close the direction, then reduce flow into the piston at the top of the media, the pressure also waned, at this time the main valve disc on the main valve disc spring force to push down, the main valve disc and the main seat gap decreases, and the medium flow also is less, the valve after pressure has been decreased to a new equilibrium, in contrast when valve after pressure is lower than the set pressure, the main valve disc and the main seat increases, the gap medium flow rate also will increase, increase valve after pressure has been reached a new equilibrium. Normal for geometric type or with geometric special properties. Q: office principle and installation using steam to reduce the pressure valve which have some? Answer: steam to reduce pressure valve office principle as follows: reduce the pressure valve work principle, steam to reduce the pressure valve is after opening and closing the throttle, reduced the inlet pressure to a certain demand of outlet pressure, and make the outlet pressure to maintain safe. Should have a straight pipe before and after the installation of reduced pressure valve, the valve before the straight pipe length is about 600 mm, the valve after the straight pipe length is about 1000 mm. 。 Steam office by elements of the valve after pressure reducing pressure valve stem. In steam pressure before the valve must be down on piping system of rinse thoroughly. In case of welding slag, oxygen flow valve, leather and other stolen goods affect the normal office valve. Reduce pressure valve used in installation, should the by-pass pipe by the valve open, dispense with a mixture of condensed water and soda and pipeline, in case of lower pressure valve opens to produce no boiled water there is damage to reduce the pressure valve, when no abnormal phenomenon, not quickly spin clockwise adjustment screws, the outlet pressure to set the desired pressure ( The table after the valve pressure shall prevail) , after debugging, the lock nut back tightly, screw on guard against confinement.
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