Spirax Sarco Dp17/Dp27/Dp143 Pilot Diaphragm Type Water/ Oil /
Steam Pressure Reducing Valve/ Pressure Regulating Valve / Control
ValveProduct DescriptionBrief Introduction. DP Pilot
Operated Pressure Reducing Valve, similar to Spirax Sarco
Design, mainly used for steam system to reduce pressure, which is
superior to normal piston type steam pressure reducing
valve. This Pilot Operated Pressure Reducing
Valve has another prominent features: The same body
can be installed and exchange the voltage valve in the more than at
the same time, realize temperature control, upstream pressure
control, remote switch control, etc.Application1. DP27 Pilot
Operated Pressure Reducing Valve Pressure Rating: 1.6-
2.5Mpa.Specification: DN15-50.Material: Steel WCB.Standard flanges:
DIN, ANSI, JIS. 2. DPP17E Pilot Operated Pressure Reducing
Valve: Pressure Rating: 1.6- 2.5Mpa.Specification:
DN15-50.Material: Steel WCB. Standard flanges: DIN, ANSI,
JIS. 3.DP17 Pilot Operated Pressure Reducing
Valve: Pressure Rating: 1.6- 2.5Mpa.Specification:
DN15-50.Material: Steel WCB.Standard flanges: DIN, ANSI,
JIS. 4. DP143 Pilot Operated Pressure Reducing
Valve: Pressure Rating: 1.6- 4.0Mpa.Specification:
DN15-200.Material: Steel WCB.Standard flanges: DIN, ANSI,
JIS.Working PrincipleProduct DetailsMaterial of Main
Component. Name of componentMaterial of componentValve body,
valve coverWCBValve seat2Cr13valve flap2Cr13Valve
rod2Cr13MembraneBrassAdjusting spring60Si2MnMain External
Dimensions.
DN(mm)L(mm)H1(mm)H(mm)D(mm)1514722113318520154224136185251602351452073218023615620740200238176255502302461832556525029520032080310323230350100350340263380125400359306455150450375330500
Product ParametersMain Technical Parameters and Indexes of
Performance. Nominal pressurePN25Maximum design
pressure(PMA)25bar g @ 120Maximum design temperature(TMA)232 @
21bar gMinimum design temperature(TMI)-10Maximum upstream
pressure for saturated steam
service(PMO)17bargMaximum operating temperature(TMO)232 @
21bar gMinimum operating
temperature(TMIO)0Maximum differential pressure( PMX
)17barMaximum cold hydraulic test pressure38bar g
DN1520253240506580100125150Cv2.85.58.112.017.028.045.560.193.3146186
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