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Wear-resistant ball valve

Product Overview

The wear-resistant ball valve produced by Guogong holding group is a high-temperature, high-pressure, erosion resistant and wear-resistant valve developed for high-end fields such as natural gas, coal chemical industry, silicon chemical industry and petrochemical industry. This series of valves are suitable for all kinds of pipelines with valve diameter of DN 150 ~ DN 1400 and pressure class of PN16 ~ pn160, which are used to cut off or connect the medium in the pipeline. With different materials, the wear-resistant ball valve is suitable for non corrosive medium, weak corrosive medium, nitric acid, acetic acid, oxidizing medium, urea and other media, especially suitable for harsh working conditions including solid particle medium, slurry, pulverized coal, ash, etc. The driving mode of wear-resistant ball valve is manual, worm gear drive, pneumatic or electric. Wear resistant ball valve generally adopts flange connection, but also can adopt butt welding connection. Wear resistant ball valve closing part the ball rotates around the center line of the valve body to open and close. The seal is embedded in the valve seat, and the end of the metal valve seat is provided with a spring. When the sealing surface is worn or burned out, the valve seat and the ball form a metal seal under the action of the spring. As for the sealing of wear-resistant ball valve, the line seal is the best for metal to metal sealing. It is easy to ensure the sealing from the sealing principle and sealing specific pressure. Under the condition of small preload, enough sealing pressure can be ensured to make the wear-resistant ball valve achieve sealing. However, it is necessary to determine the contact width of the sealing surface of the valve seat according to the pressure grade and diameter of the pipe, so as to prevent the sealing surface from being crushed.

Structural characteristics

The sphere is made of forged material and its surface is chemically treated. According to the customer's requirements, nickel phosphorus alloy, tungsten carbide and chromium carbide can be sprayed and welded. The surface finish can reach the mirror effect. The valve is a soft and hard double sealing zero leakage structure to ensure the effective cut-off of the downstream pipeline. The soft seal adopts enhanced polytetrafluoroethylene, with low friction coefficient, high structural density and excellent self-lubricating performance; the hard seal adopts spray welding of nickel phosphorus alloy, tungsten carbide and chromium carbide, with a smooth finish of mirror surface and small friction coefficient with the ball.
Considering the influence of metal particles in medium on zero leakage seal, ball to PTFE or rubber seal is used as primary seal, ball to metal seat seal is used as secondary seal, and in order to prevent foreign matters in pipeline from entering the valve seat and elastic device causing damage to the valve seat, the valve seat is equipped with double seal, which can ensure that there are no impurities in the valve seat and elastic device, and greatly prolong the service life of the valve Life. At the same time, the valve seat is equipped with an emergency sealant injection system to obtain temporary sealing requirements.

Execution standard

Design specification :GB/T 12237 GB/T 19672 API 6D
Structure length: GB/T 122
Connection flange: GB/T 9113 JB/T
Test and inspection: JB/T 9092 GB/T 19672

Performance parameter

Nominal diameter: DN50 ~ 1200mm
Nominal pressure: PN16 ～ 160MPa
Applicable temperature: ≤ 425 ℃
Applicable media: water, steam, air, gas and oil
Driving mode: manual, electric and pneumatic

Product Dimensions

PN1.6MPa

DN	mm	50	65	80	100	125	150	200	250	300	350	400	450	500	600	700	800	900	1000	1050	1200
Flange	L	178	191	203	229	356	394	457	533	610	68 6	762	864	914	1067	1245	1372	1524	1721	1829	2180
Manual	H	130	142	191	200	226	242	-	-	-	-	-	-	-	-	-	-	-	-	-	-
	W	230	350	400	450	750	750	-	-	-	-	-	-	-	-	-	-	-	-	-	-
	kg	12	28	33	50	78	93	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Worm Gear	H	-	-	-	-	-	-	337	385	414	447	545	545	585	663	723	923	986	1061	1420	1530
	W	-	-	-	-	-	-	600	600	800	800	800	800	800	800	800	800	800	800	800	800
	kg	-	-	-	-	-	-	250	390	578	770	1100	1250	1800	2400	4500	6900	9700	13000	15000	23000
Pneum- atic	H	269	379	389	479	552	666	769	824	897	937	1121	1161	1203	1145	1160	1460	1510	1610	-	-
	H1	174	248	258	322	395	457	560	615	653	691	816	856	898	915	930	1100	1150	1250	-	-
	L1	89	148	148	287	287	378	378	378	530	530	680	680	680	1455	1455	1665	1665	1960	-	-
	L2	181	257	257	287	287	378	378	378	530	530	680	680	680	1455	1455	1665	1665	1960	-	-
	kg	32	42	53	100	125	157	265	410	595	795	1150	1295	1910	2400	4600	7100	10100	14200	-	-
Electric	H	-	-	-	-	-	559	710	744	851	859	959	999	965	1141	1233	1341	1666	1895	2114	2194
	H1	-	-	-	-	-	342	492	527	570	608	708	748	790	866	960	1068	1100	1210	1390	1470
	W	-	-	-	-	-	200	200	200	280	280	280	305	3015	305	400	400	460	460	600	600
	kg	-	-	-	-	-	152	245	425	610	800	1180	1300	1200	2500	4710	7300	10200	15200	16800	24000

PN2.5MPa/PN4.0MPa

DN	mm	50	65	80	100	125	150	200	250	300	350	400	450	500	600	700	800	900	1000	1050	1200
Flange	L	216	241	283	305	381	403	502	568	648	762	838	914	991	1143	1346	1524	1727	2083	2050	2180
Manual	H	136	164	191	223	240	253	-	-	-	-	-	-	-	-	-	-	-	-	-	-
	W	240	400	400	600	750	800	-	-	-	-	-	-	-	-	-	-	-	-	-	-
	kg	32	37	58	110	157	180	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Worm Gear	H	-	-	-	-	-	-	337	385	414	447	545	545	585	663	723	923	986	1061	1420	1530
	W	-	-	-	-	-	-	600	600	800	800	800	800	800	800	800	800	800	800	800	800
	kg	-	-	-	-	-	-	280	410	760	1100	1600	1700	2300	3500	6000	8000	11000	14000	17000	25000
Pneum- atic	H	360	388	476	418	621	634	701	771	814	913	1013	1148	1190	1316	1410	1518	1740	1850	-	-
	H1	229	257	319	361	412	425	492	527	570	608	708	748	790	866	960	1068	1140	1250	-	-
	L1	148	148	287	287	378	378	378	530	530	680	680	680	1455	1455	1665	1665	1960	1960	-	-
	L2	181	257	287	287	378	378	378	530	530	680	680	680	1455	1455	1665	1665	1960	1960	-	-
	kg	45	70	95	153	260	350	450	750	1140	1580	2550	2300	3100	4400	6000	8120	11200	14500	-	-
Electric	H	-	-	-	-	-	559	710	744	851	859	959	999	963	1141	1233	1341	1696	1925	2114	2194
	H1	-	-	-	-	-	342	492	527	570	608	708	748	790	866	960	1068	1100	1210	1390	1470
	W	-	-	-	-	-	200	200	200	280	280	280	305	305	305	400	400	460	460	600	600
	kg	-	-	-	-	-	380	460	780	1150	1620	2160	2400	3120	4500	6100	8210	11400	14800	17500	26000

PN6.4MPa

DN	mm	50	65	80	100	150	200	250	300	350	400	450	500	600	700	800	900	1000	1050	1200
Flange	L	292	330	356	406	495	597	673	762	826	902	978	1054	1232	1397	1651	1880	2300	2057	2400
Manual	H	136	164	191	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
	W	230	400	400	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
	kg	35	40	59	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Worm Gear	H	-	-	-	244	303	342	382	420	458	558	598	630	759	836	915	987	1212	1460	1600
	W	-	-	-	600	600	800	800	800	800	800	800	800	800	800	800	800	800	1000	1000
	kg	-	-	-	180	240	296	425	780	1210	1650	1720	2400	3560	6100	8200	11500	14500	17800	26000
Pneum- atic	H	269	-	519	636	728	839	1014	1120	1225	1480	-	1480	1365	1430	-	-	-	-	-
	H1	209	-	295	322	386	527	698	750	883	1080	-	1080	915	980	-	-	-	-	-
	L1	148	-	287	287	378	378	530	530	680	680	-	680	1665	1665	-	-	-	-	-
	L2	257	-	287	287	378	378	530	530	680	680	-	680	1665	1665	-	-	-	-	-
	kg	50	-	98	156	380	575	760	1150	1600	2200	-	3150	4480	6200	-	-	-	-	-
Electric	H	-	-	-	-	520	560	554	661	635	757	879	803	981	1073	1133	1287	1512	2114	2254
	H1	-	-	-	-	303	342	382	420	458	558	598	630	759	836	915	987	1212	1390	1530
	W	-	-	-	-	200	200	200	280	280	280	305	305	305	460	460	600	600	600	600
	kg	-	-	-	-	390	470	790	1250	1710	2250	2520	3220	4600	6500	8400	12000	15800	19000	27500

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