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Dp27 High Sensitivity Pressure Reducing Valve
Basic Info

Model No.:  DP27

Product Description Model NO.: DP27 Connection: Flange Structure: Diaphragm Valve: Pressure Reducing Valve Pressure: 150lb Trademark: YI CHEN Specification: CE API ISO HS Code: 8481804090 Temperature: Ordinary Temperature Valve Seat: Single-Seat Material: Wcb Size: 1"-6" Suitable Medium: Steam Transport Package: Plywood Case Origin: China YI CHEN Diaphragm Pilot Operated Pressure reducing valve
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.
 Flow coefficient (Cv)
DN 15 20 25 32 40 50 65 80 100 125 150
KV 2.8 5.5 8.1 12.0 17.0 28.0 45.5 60.1 93.3 146 186
main technical parameters and indexes of performance                                
connecting dimension
Nominal pressure PN25
Maximun design pressure(PMA) 25bar g @ 120ºC
Maximun design temperature(TMA) 232ºC @ 21bar g
Minimun design temperature(TMI) -10ºC
Maximun upstream pressure for
saturated steam service(PMO)
Maximun operating
232ºC @ 21bar g
Minimun operating
Maximun differential pressure( Δ
Down stream pressure range 0.2-1.7bar g
15 147 221 133 185
20 154 224 136 185
25 160 235 145 207
32 180 236 156 207
40 200 238 176 255
50 230 246 183 255
65 250 295 200 320
80 310 323 230 350
100 350 340 263 380
125 400 359 306 455
150 450 375 330 500
  *the shell test does not include membrane and valve cover
 connecting manner:
flange: RF FM RJ
standard: JB79 GB9113 ANSI B16.5 DIN BS4504
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
Valve body, valve cover WCB

Our Services
1)Our advantage:
We are the manufacturer with almost 20 years experience on valves.Best price,quality and service, Also we can control the production status.Shanghai YI CHEN team with strong ability in designing and after sell service.Cooperation with Carrier has improved our quality to a new level.
2)Terms of payment:T/T, L/C, Western union.
3)Shipment:Average 20-25days after receiving deposit.
4)Delivery:Shanghai/Ningbo ,by sea or air.
5)Gurantee:One year since delivery.
6)Inspection:100% testing for all the valves.
Welcome to choose SHANG HAI YI CHEN , we are always ready!


Contact us if you need more details on Pilot Operated Prv. We are ready to answer your questions on packaging, logistics, certification or any other aspects about Pilot Extra Prv、Huge Membrane Prv. If these products fail to match your need, please contact us and we would like to provide relevant information.

Product Categories : Pressure reducing valve

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