Good Quality China Heavy-Duty Welding Bi-Directional Viton Seat Knife Gate Valve

Short Description:

The rising stem resilient seated gate valve for fire protection is often used in fire protection and industrial systems because it can directly indicate the opening of the valve. It is generally installed at a higher position from the ground.

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Technical parameters of rising stem fire resilient seat seal gate valve

Nominal diameter	DN50-600mm
Nominal pressure	1.0/1.6/2.5MPa
working temperature	0-80��
Pressure seal	2.0 times nominal pressure
Pressure resistance of valve body	4.0 times nominal pressure
Applicable medium	Water, oil and gas

Main connection dimensions

DN	L	D1		D2		N-��d		��ȫ�أ�Hmin	��ȫ��Hmax
DN	L	1.0MPa	1.6MPa	1.0MPa	1.6MPa	1.0MPa	1.6MPa	��ȫ�أ�Hmin	��ȫ��Hmax
50	178	135	135	125	125	4-19	4-19	322	374
65	190	185	185	145	145	4-19	4-19	332	398
80	203	200	200	160	160	8-19	8-19	350	429
100	229	220	220	180	180	8-19	8-19	420	524
125	254	250	250	210	210	8-19	8-19	420	524
150	267	285	285	240	240	8-23	8-23	581	736
200	292	340	340	295	295	8-23	12-23	736	942
250	330	405	405	350	355	12-23	12-28	882	1013
300	356	460	460	400	410	12-23	12-28	1009	1117
350	381	520	520	460	470	16-23	16-28	1300	1655
400	406	580	580	515	525	16-28	16-31	1380	1805