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Model: D973H / Y
Nominal diameter: DN50 ~ 2000mm
Nominal pressure: PN16 ~ 64MPa
Body Material: WCB, 304,316
Connection: Wafer, flange
Design standards: GB / T12238-1989
Flange dimensions : GB / T9113.1-2000; GB / T9113.2-2000 GB / T9115.1-2000; GB / T9115.2-2000
Structure length: GB / T12221-1989
Pressure test: GB / T13927-1992; JB / T9092-1999

First, the product description
 Electric clamp multi-level metal hard seal butterfly valve with a "U" stainless steel seal, the precision of the elastic ring and polished disc three-dimensional eccentric contact. It solves the defect that the traditional eccentric butterfly valve is still in sliding contact friction at the moment when the opening and closing is 0 ° ~ 10 °, so that the sealing surface of the butterfly plate can be separated at the moment of opening and the effect of closing the contact is sealed, thus prolonging the service life and sealing performance Good purpose. Therefore, it is widely applied to the pipeline of metallurgy, electric power, petroleum, chemical industry, air, gas, combustible gas and water supply and drainage corrosive media with medium temperature ≤550 ℃. It is the best device to regulate the flow and cut off the fluid.

Second, the product features

1, the butterfly valve structure is simple, compact, light weight, easy to install and disassemble, easy maintenance; 
 2, the butterfly valve with stainless steel "U" ring, with a certain flexibility in both high temperature and low temperature, All have excellent sealing; 
 3, the three-dimensional eccentricity of the butterfly valve, after rigorous calculations, "U" type ring and disc almost no friction, long service life 
 , The sealing surface of the plate is cladded with cobalt-based cemented carbide, and the sealing surface is resistant to abrasion and long service life. 
 5. The butterfly valve has a unique structure and the "switch" can be completed by only rotating the valve stem by 90 °. Operation flexibility, convenience, effort, not affected by the level of media pressure, sealing performance and reliable; 
 6, high temperature, low temperature, corrosion resistance.

Third, the main shape and connection dimensions

DN	L	0.25MPa			0.6MPa			H	H1	1.0MPa			H	H1
		D1	D2	Z-φd	D1	D2	Z-φd			D1	D2	Z-φd
50	43	110	90	4-φ14	110	90	4-φ14	70	290	125	100	4-φ18	90	310
65	46	130	110	4-φ14	130	110	4-φ14	80	300	145	120	4-φ18	100	320
80	49	150	125	4-φ18	150	125	4-φ18	110	320	160	135	4-φ18	120	330
100	56	170	145	4-φ18	170	145	4-φ18	130	335	180	155	8-φ18	140	345
125	64	200	175	8-φ18	200	175	8-φ18	145	395	210	185	8-φ18	155	405
150	70	225	200	8-φ18	225	200	8-φ18	160	400	240	210	8-φ23	180	420
200	71	280	155	8-φ18	280	155	8-φ18	185	495	295	265	8-φ23	205	515
250	76	335	310	12-φ18	335	310	12-φ18	220	570	350	320	12-φ23	240	590
300	83	395	362	12-φ23	395	362	12-φ23	300	650	400	368	12-φ23	305	655
350	92	445	412	12-φ23	445	412	12-φ23	310	685	460	428	16-φ23	325	700
400	102	495	462	16-φ23	495	462	16-φ23	330	690	515	482	16-φ26	360	720
450	114	550	518	16-φ23	550	518	16-φ23	360	740	565	532	20-φ25	385	765
500	127	600	568	20-φ23	600	568	20-φ23	380	820	620	585	20-φ25	410	850
600	154	705	670	20-φ25	705	670	20-φ25	425	885	725	685	20-φ30	450	910
700	165	810	775	24-φ25	810	775	24-φ25	470	990	840	800	24-φ30	505	1025
800	190	920	880	24-φ30	920	880	24-φ30	530	1055	950	905	24-φ34	565	1090
900	203	1020	980	24-φ30	1020	980	24-φ30	585	1165	1050	1005	28-φ34	620	1200
1000	216	1120	1080	28-φ30	1120	1080	28-φ30	648	1235	1160	1115	28-φ34	693	1280
1200	254	1320	1280	32-φ30	1340	1295	32-φ34	730	1335	1380	1325	32-φ41	780	1385
1400	297	1520	1480	36-φ30	1560	1510	36-φ34	807	1405	1590	1525	36-φ48	862	1460
1600	318	1730	1690	40-φ30	1760	1710	40-φ34	903	1475	1820	1750	40-φ54	998	1570
1800	356	1930	1890	44-φ30	1970	1910	44-φ41	1080	1820	2020	1950	44-φ54	1150	1890
2000	406	2130	2090	48-φ48	2180	2110	48-φ48	1280	2190	2230	2160	48-φ54	1340	2250