Special for Fire Protection Fire Flange Elastic Seat Sealing Gate Valve

Product Description

summarize XHZ41 fire special signal elastic seat seal gate valve in addition to the advantages of elastic seat seal gate valve, often used in automatic sprinkler fire piping system, to critically control the water supply pipeline, can be far to indicate the valve opening. Lifting lever gate valve and with the opening indicator gate valve is also often used in the fire system, if the gate valve installation position is higher from the ground, the general use of lifting lever gate valve, you can obviously indicate the gate valve opening, if the installation position is low. It is necessary to use the pay opening indicator gate valve. Main technical parameters Nominal pressure: 1.0 ~ 2.5MPa
Nominal diameter: 50 ~ 400mm
Working temperature: 0 ~ 120ºC
Applicable medium: water, oil, gas and other
flanges standard: GB/T17241.6GB9113
Test standard: GB13927API598 Main parts materials

NO.	Part name	Material
1	Drive Cap	Ductile iron, cast steel
2	Handwheel	Malleable cast iron
3	Dust cover	plastic
4	Sealing ring	Nitrile butadiene rubber, EPDM
5	Thrust bearings	Tin bronze
6	Bonnet	Gray cast iron, ductile cast iron, cast steel
7	Bolts	Carbon steel, stainless steel
8	Valve body	Carbon steel, ductile iron, cast steel
9	Copper nuts	Tin bronze
10	Stem	Stainless steel
11	Valve flap	Ductile iron + EPDM or NBR

Main connection dimensions

DN	50	65	80	100	125	150	200	250	300	350	400	450	500	600
L	178	190	203	229	254	267	292	330	356	381	406	432	457	508
H (full open)	732	773	820	870	915	1003	1110	1263	1360	1550	1610	1900	1938	2130

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