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Yongjia Goole Valve Co., Ltd.

Steam Pressure Reducing Valve, China Pressure Reducing Valve, Wcb Pressure Reducing Valve manufacturer / supplier in China, offering Pilot Operated Pressure Reducing Valve (DPP17E-GVPR02), Bellows Pressure Reducing Valve (BRV71/73-GVPR06), Dp27 Pilot Operated Pressure Reducing Valve and so on.

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Pilot Operated Pressure Reducing Valve (DPP17E-GVPR02)

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Min. Order: 1 Piece
Transport Package: Plywood Case
Payment Terms: L/C, T/T

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Basic Info
  • Model NO.: DPP17E-GVPR02
  • Temperature: Ordinary Temperature
  • Valve Seat: Single-Seat
  • Material: Cast Steel
  • Origin: China(Mainland)
  • Certification: ISO, CE
  • Connection: Flange
  • Structure: Diaphragm
  • Trademark: GOOLE, OEM
  • HS Code: 8481804090
Product Description

Pilot Operated Pressure Reducing Valve (DPP17E-GVPR02)
Pilot Operated Pressure Reducing Valve (DPP17E-GVPR02)

DPP17E-GVPR02
 Pilot Operated Pressure Reducing Valve

 
 
Brief Introduction.
 
 
DPP17E Pressure Reducing Valve is supplied as for the DP17 with a control spring but the maximum pressure is limited to 10 Bar g due to the addition of the solenoid valve. A solenoid operated valve is fitted in te pipe between the pilot valve and the main diaphragm camber and is thus in series with the normal pilot valve.
The purpose of the solenoid valve is to override the pilot valve thus causing the main valve to shut-off. It can be controlled by any device capable of interrupting the supply of current to the solenoid coil.
The solenoid is arranged to open the valve when the coil is energised so that whatever switching device is used it must be arranged to break the current to close the main valve. In this way the unit will always fail-safe i.e. will close the main valve in the event of a failure in electrical supply.
 
Electrical supply
 
It is important that the solenoid is connected to the correct voltage. Therefore always check on the supply details which are stamped on the solenoid valve name-plate before attempting to connect up. Electrical connection is by cable plug to DIN 43650. All wiring, connectors, etc. in close proximity to the valve should be of heat resisting type and comply with local and national electrical codes.

This pilot operated reducing valve is 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.

Another outstanding advantage of the valve is: a valve body can be installed with many pilot valves, to realize the temperature control,
upper stream pressure control and long-distance switch control as well as pressure regulating.
 
Field of Application.
 
Product Name: DPP17E Pilot Operated Pressure Reducing Valve.
Pressure Rating: 1.6- 2.5 Mpa.
Nominal Diameter: DN15-50 mm.
Body Material: Steel WCB.
Standard Flanges: DIN, ANSI, JIS.
 
Main Technical Parameters and Indexes of Performance.
 
Nominal PressurePN25
Maximum Design Pressure(PMA)25bar g @ 120
Maximum Design Temperature(TMA)232 @ 21 bar g
Minimum Design Temperature(TMI)-10
Maximum Upstream Pressure for Saturated Steam Service(PMO)10 bar g
Maximum Operating Temperature(TMO)190 @ 21 bar g
Minimum Operating Temperature(TMIO)0
Maximum Differential Pressure(PMX)10 bar
Maximum Cold Hydraulic Test Pressure38 bar g
 
Material of Main Component.
 
Name of componentMaterial of component
Valve body, valve coverWCB
Valve seat2Cr13
valve flap2Cr13
Valve rod2Cr13
MembraneBrass
Adjusting spring60Si2Mn
 
Main External Dimensions.
 
 Pilot Operated Pressure Reducing Valve (DPP17E-GVPR02)
 
 
DNLH1HD
15147221133185
20154224136185
25160235145207
32180236156207
40200238176255
50230246183255
65250295200320
80310323230350
100350340263380
125400359306455
150450375330500
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