Q347h hard seal fixed ball valve is used in oil, natural gas, coal and ore mining, refining and pipeline transportation system; in the production of chemical products, medicine and food; in the power production system of hydropower, thermal power and nuclear power It is widely used in the water supply and drainage, heating and gas supply systems of cities and industrial enterprises, in the drainage and irrigation systems of farmland, and in the gold production system. It is an important mechanical product closely related to production and construction, national defense construction and people's life. The ball valve is sealed in all kinds of pipeline system, which is used to cut off or connect the medium flow, so that the medium can be transported to each designated point according to the predetermined procedure.

1. The flexible movable metal valve seat structure with cylindrical spring or wave spring preload is adopted. The design of sealing preload is reasonable and the closing and opening is flexible, which can effectively ensure the reliability of sealing.
2. The valve rod with special structure device can not only ensure the leakage of filling material, but also prevent the valve rod from falling out.
3. According to the needs of users, it can be designed to adapt to dust (including solid particles), slurry and other media, so that the ball valve has better wear resistance and high temperature resistance.
4. It has the function of fire and static electricity prevention.
5. The ball valve of this structure shall be used according to the specified flow direction.

It is widely used in oil, natural gas, coal and ore mining, refining and processing and pipeline transportation system; in the production of chemical products, medicine and food; in the power production system of hydropower, thermal power and nuclear power; in the water supply and drainage, heating and gas supply system of cities and industrial enterprises.

Material of main parts of q347h hard seal fixed ball valve

valve body	Stem	Stem	Sealing surface	shim	filler	working temperature	Applicable media
WCB	1Cr13	1Cr13	1Cr13 Stellite Alloy Body material	Flexible graphite Stainless steel with flexible graphite 08 mild steel F304 F316	Flexible graphite Braided graphite	-29-425℃	Water, steam and oil
WC6	15CrMo	15CrMo				-29-425℃
WC9	25Cr2MoV	25Cr2MoV
LCB	304	304				-46-354℃
CF8	304	304				-196-600℃	Partial acid and alkali
CF3	304L	304L
CF8M	316	316
CF3M	316L	316L

Main connection dimensions of q347h-16c hard seal fixed ball valve(mm)

Nominal diameterDN		25	32	40	50	65	80	100	125	150	200	250	300	350	400	450	500	600	700
d1		25	32	40	50	65	80	100	125	150	200	250	300	337	387	438	489	591	686
L		165	180	190	216	241	283	305	356	394	457	533	610	686	762	864	914	1067	1245
H		50	55	80	102	114	127	152	184	219	273	360	395	430	470	550	580	700	800
Manual	H1	75	85	95	107	125	152	178	300	330	398	495	580	625	670	698	840	1050	1100
	E	-	-	-	-	-	-	-	-	-	116	116	171	171	257	257	257	150	83
	F	-	-	-	-	-	-	-	-	-	350	350	400	420	400	420	400	410	650
	W	160	160	230	230	400	400	650	1050	1050	600	600	800	800	800	800	800	800	800
	Wt(Kg)	4.5	5.7	7.0	12	16	22	35	58	74	205	322	460	576	864	1280	1600	1600	4500
Electric	H2	-	-	-	-	-	-	-	-	554	600	652	760	770	830	-	940	940	1115
	L1	-	-	-	-	-	-	-	-	235	235	235	259	400	400	-	410	410	410
Pneumatic	H3	215	240	264	274	379	389	479	552	666	736	926	1059	1127	1393	1468	1538	1538	1450
	L2	200	270	270	270	405	405	576	576	776	776	776	1060	1060	1360	1360	1360	1360	2840

Main connection dimensions of q347h-25c hard seal fixed ball valve(mm)

Nominal diameterDN		25	32	40	50	65	80	100	125	150	200	250	300	350	400	450	500	600	700
d1		25	32	40	50	65	80	100	125	150	200	250	300	337	387	438	489	591	686
L		165	180	190	216	241	283	305	381	403	502	568	648	762	838	914	991	1143	1346
H		50	55	80	102	114	127	152	184	219	273	360	395	430	470	550	580	700	800
Manual	H1	75	85	95	107	125	152	178	300	330	398	495	580	625	670	698	840	1050	1100
	E	-	-	-	-	-	-	-	-	-	116	116	171	171	257	257	257	150	83
	F	-	-	-	-	-	-	-	-	-	350	350	420	420	400	400	400	410	650
	W	160	160	230	230	400	400	650	1050	1050	600	600	800	800	800	800	800	800	800
	Wt(Kg)	4.5	5.7	7.0	15	24	30	55	87	118	255	370	533	640	1030	1524	2100	4200	5300
Electric	H2	-	-	-	-	-	-	-	-	235	235	400	400	410	410	-	420	690	690
	L1	-	-	-	-	-	-	-	-	74	350	350	420	420	400	-	400	410	650
Pneumatic	H3	215	240	264	340	379	452	479	646	666	814	1002	1059	1150	1205	1250	1295	1390	1470
	L2	200	270	270	405	405	574	574	756	756	1060	1060	1060	1360	1360	2840	2840	3300	3300