Pilot Operated Pressure Reducing Valve

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This reducing valve is latest type pilot pressure reducing valve with membrane. It is the modified form of normal pressure reducing valve. The membrane of new material enlarging the working area, so the higher pressure can be fed back to the membrane, and adjust the main valve to maintain the constant pressure of lower pressure stream.

Advantage
1. Especially suitable for steam and water.
2. Max inlet pressure: 16 bar, 25 bar.
3. Outlet pressure (Springs pressure setting rang) Yellow: 0.2 to 3 bar; Blue: 2.5 to 7 bar; Red: 6 to 12 bar.
4. Diameter: 15-200 mm.
5. Medium temperature: 0-285 ℃.
6. Max rate inlet pressure/ outlet pressure: 20:1.
7. DIN, ANSI, GB

Name of component	Material
Valve body, valve cover	WCB
Valve seat	2Cr13
Valve flap	2Cr13
Valve rod	2Cr13
Membrane	Brass
Adjusting spring	60Si2Mn
Pressure sensing pipe	Brass

PN 16
DN	Main connection size
DN	L	H1	H	L1	D	D1	D2	b	f	n-Φd
15	147	235	145	185	95	65	45	16	2	4-Φ14
20	154	235	145	185	105	75	58	18	2	4-Φ14
25	160	235	145	207	115	85	68	18	2	4-Φ14
32	180	235	145	207	140	100	78	18	2	4-Φ18
40	200	240	180	255	150	110	88	18	3	4-Φ18
50	230	240	183	255	165	125	102	20	3	4-Φ18
65	250	295	200	320	185	145	122	20	3	4-Φ18
80	310	232	230	350	200	160	138	20	3	8-Φ18
100	350	320	240	380	220	180	158	20	3	8-Φ18
125	400	352	315	430	250	210	188	22	3	8-Φ18
150	450	364	334	455	285	240	212	22	3	8-Φ22
200	500	384	354	510	340	295	268	24	3	12-Φ22
PN 25
DN	Main connection size
DN	L	H1	H	L1	D	D1	D2	b	f	n-Φd
15	147	235	145	185	95	65	45	16	2	4-Φ14
20	154	235	145	185	105	75	58	18	2	4-Φ14
25	160	235	145	207	115	85	68	18	2	4-Φ14
32	180	235	145	207	140	100	78	18	2	4-Φ18
40	200	240	180	255	150	110	88	18	3	4-Φ18
50	230	240	183	255	165	125	102	20	3	4-Φ18
65	250	295	200	320	185	145	122	22	3	8-Φ18
80	310	232	230	350	200	160	138	24	3	8-Φ18
100	350	320	240	380	235	190	162	24	3	8-Φ22
125	400	352	315	430	270	220	188	26	3	8-Φ26
150	450	364	334	455	300	250	218	28	3	8-Φ26
200	500	384	354	510	360	310	278	30	3	12-Φ26

Comprehensive Solution For Steam And Heat System