DP27 pilot operated pressure reducing valve

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PRODUCT NAME : pilot operated pressure reducing valve PRODUCT MODEL : DP27 Structural characteristic and purpose This reducing valve the new type pilot extra-huge membrane pressure reducing valve developed by our company. It is greatly improved on basis of normal pressure reducing valve. The membrane use new material, enlarging the working area, so the slight change of upper pressure or lower pressure can be fed back to membrane of main valve, and adjust the opening of main valve to ensure the constant pressure of lower stream pressure. Note: A variable rate conical pressure adjustment spring is fitted providing a down stream pressure range of 0.2-17bar g. main technical parameters and indexes of performance Nominal pressure PN25 Maximun design pressure(PMA) 25bar g @ 120℃ Maximun design temperature(TMA) 232℃ @ 21bar g Minimun design temperature(TMI) -10℃ Maximun upstream pressure for saturated steam service(PMO) 17barg Maximun operating temperature(TMO) 232℃ @ 21bar g Minimun operating temperature(TMIO) 0℃ Maximun differential pressure( Δ PMX ) 17bar Down stream pressure range 0.2-1.7bar g Maximum cold hydraulic test pressure 38bar g material of main component Name of component Material of component Valve body, valve cover WCB Valve seat 2Cr13 valve flap 2Cr13 Valve rod 2Cr13 Membrane Brass Adjusting spring 60Si2Mn

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yongjia goolevalve co ltd.

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