GQ947HT-type rail type steel electric ball valve is suitable for petrochemical, LPG storage, refinery, natural gas, compressor system, oil and gas transmission pipeline, light industry, textile and other industries.

Structure length: JB / t7745 GB / t12221
Connecting flange: GB / t9113 JB / 79 hg20592
Butt welding end: GB / t12224
Inspection and test: JB / t9092

1. Open and close without friction. This function completely solves the problem of traditional valve sealing affected by mutual friction between sealing faces
2. Top mounted structure. The valve installed on the pipeline can be directly inspected and maintained online. It can effectively reduce the shutdown of the device and reduce the production cost
3. Single seat design. The problem that the medium in the valve chamber is affected by abnormal pressure rise is eliminated
4. Low torque design. The valve stem of special structure design can be opened and closed easily with a small hand wheel valve
5. Wedge seal structure. The valve is sealed by the mechanical force provided by the valve stem to press the ball wedge onto the valve seat. The sealing performance of the valve is not affected by the change of pipeline pressure difference, and the sealing performance is reliably guaranteed under various working conditions
6. Self cleaning structure of sealing surface. When the ball tilts away from the valve seat, the fluid in the pipeline will pass through the sealing surface of the ball evenly in 360 degrees. It not only eliminates the local scour of high-speed fluid on the valve seat, but also washes away the accumulation on the sealing surface to achieve the purpose of self-cleaning

GQ947H Performance parameters of type-I rail type steel ball valve

model		GQ947H-16C	GQ947H-25C
working pressure（MPa）		1.6	2.5
working temperature（℃）		-190～550
Applicable media		Water, steam and oil
Material Science	Valve body and cover	WCB
	Stem	2Cr13
	sphere	WCB＋HCr/STL
	valve seat	25
	filler	Flexible graphite

GQ947H Main shape and connection dimension of type-I rail type steel electric ball valve

Pressure level	Main dimensions	Nominal diameter
		25	32	40	50	65	80	100	125	150	200	250	300	350	400	450	500
PN1.6MPa	L	100	180	200	230	290	310	350	480	480	600	730	850	980	1100	1200	1250
	H	24	260	307	360	410	483	512	581	581	617	672	723	758	791	828	870
	㎏	9.5	16	19	28	30	41	55	115	115	215	270	385	502	876	980	1240
PN2.5MPa	L	160	180	200	230	290	310	350	480	480	600	730	850	980	1100	1200	1250
	H	260	280	320	260	430	490	525	604	604	642	695	742	781	815	864	905
	㎏	9.5	16	19	28	30	45	59	121	121	230	289	402	540	913	1120	1280
PN4.0MPa	L	160	180	200	230	290	310	350	480	480	600	730	850	980	1100	1200	1250
	H	260	280	320	360	436	492	527	649	649	701	750	750	790	832	875	910
	kg	10	17	20	25	32	45	59	115	115	2130	295	402	540	913	1124	348
PN6.4MPa	L	160	180	200	230	290	310	350	480	480	600	730	850	980	1100	-	-
	H	280	300	329	365	450	509	541	725	725	781	790	806	821	858	-	-
	kg	10	17	20	25	32	52	68	106	168	281	355	498	689	1134	-	-
150Lb	L	127	140	165	178	190	203	229	356	394	457	533	910	686	762	964	914
300Lb	L	165	178	190	216	214	283	305	381	403	502	568	648	762	838	914	991
600Lb	L	216	229	241	292	330	356	432	508	559	660	787	838	889	991	1092	1194