pilot operated pressure reducing valve DP27 manufacturer from China Yongjia Goole Valve Co.,Ltd

Payment Terms:	T/T,L/C,WU
Place of Origin:	Zhejiang, China (Mainland)


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Product Detail

Model No.: DP27

Production Capacity: 20000

Delivery Date: within 15 days

Means of Transport: Ocean,Land,Air

Packing: wooden case

Brand Name: Goole

Producet describtion

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

connecting dimension

DN	L	H1	H	D
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