Pressure relief valve

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Pressure relief valve

Model: QP742Y
Nominal diameter: DN200 ~ 500 mm
Nominal pressure: 0.25MPa
Operating temperature: ≤250 ℃
Suitable medium: air, gas and other gases
Input signals: 0-10 or 4-20mA · DC
Transmission Type: hydraulic transmission
Method Blue Standard: GB / T9115-98
Connection Size: GB2555-81PN2.5
Detection: GB / T13927-92

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Main dimensions, connection dimensions and quality unit: mm

DN（mm）	PN（MPa）	L	D	D1	D2	b	H
200	0.1	225	375	320	284	20	865
250	0.1	225	425	370	330	20	890
300	0.1	245	485	430	389	22	1020
250	0.1	265	555	490	448	22	1100
400	0.1	265	620	555	503	24	1225
450	0.1	285	645	600	570	24	1265
480	0.1	285	735	685	650	24	1320
500	0.1	285	755	705	670	26	1330
550	0.1	285	805	755	720	26	1360
600	0.1	285	850	795	745	28	1385
610	0.1	285	860	810	772	28	1395
650	0.1	285	910	830	794	28	1410
675	0.1	300	935	855	789	28	1425
700	0.1	300	980	890	845	30	1495
800	0.1	300	1075	985	940	30	1541
900	0.1	300	1190	1125	1070	30	1718
1000	0.1	410	1320	1210	1140	32	1650
1200	0.1	470	1530	1420	1350	36	1795
1250	0.1	470	1590	1475	1410	36	1800

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