Dp27 Pilot Operated Pressure Reducing Valve

• Customization: Available
• Certification: ISO
• Temperature: Ordinary Temperature
• Model NO.: GADP27
• Connection: Flange
• Valve Seat: Single-Seat
• Structure: Spring Diaphragm
• Material: C.S
• Size: 1/2"-6"
• Category: Pressure Reducing Valve
• Connecting Type: Flange
• Medium: Steam., etc
• Working Temperature: Below 285 Deg C
• Usage: Pressure Reducing
• Application: Steam System, Air Compressor System., etc
• Transport Package: Carton, Plywood Case
• Specification: ISO 9001
• Trademark: GOOLE, OEM
• Origin: China(Mainland)
• HS Code: 8481804090
• Production Capacity: 10000PCS/Year

Product Description

DP27 Pilot Operated Pressure Reducing Valve

Product Description

 

Brief Introduction. 

DP27 Pilot Operated Pressure Reducing Valve is the new type pilot extra-huge membrane pressure reducing valve developed by our company, similar to Spirax Sarco Design. 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. 

Application

Field of Application. 

Product Name: DP27 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. 

Working Principle

 

Product Details

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

Main External Dimensions. 
 

DN(mm)	L(mm)	H1(mm)	H(mm)	D(mm)
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

Product Parameters

Main Technical Parameters and Indexes of Performance. 

Nominal pressure	PN25
Maximum design pressure(PMA)	25bar g @ 120
Maximum design temperature(TMA)	232 @ 21bar g
Minimum design temperature(TMI)	-10
Maximum upstream pressure for saturated steam service(PMO)	17barg
Maximum operating temperature(TMO)	232 @ 21bar g
Minimum operating temperature(TMIO)	0
Maximum differential pressure( PMX )	17bar
Down stream pressure range	0.2-1.7bar g
Maximum cold hydraulic test pressure	38bar g

 

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