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Location：PRODUCTS >> Metallurgical valve >> Round door

Round door

Model: 74DD
Nominal diameter: DN100 ~ 2200mm
Nominal pressure: PN0.05MPa
air, flue gas, dust-containing gas, combustible gas: Medium
Temperature: ≤400 ° C
Leak rate: ≤3%

DN	D	D1	D2	B	L	&	& d	d1	Number of spiral holes
mm									Number of spiral holes
100	195	100	160	80	177	14	17 * 17	14	4
150	250	150	215	80	238	14	17 * 17	14	8
200	305	200	270	80	270	16	17 * 17	14	8
250	365	260	330	90	300	16	17 * 17	14	12
300	430	310	385	180	342	18	17 * 17	14	12
350	480	360	435	180	367	18	17 * 17	14	12
400	535	410	490	180	392	20	17 * 17	18	12
450	585	460	540	180	417	20	17 * 17	18	12
500	645	520	600	180	447	20	17 * 17	18	16
600	745	620	700	180	497	20	17 * 17	18	16
700	850	710	800	260	570	22	32 * 32	18	20
800	950	810	900	260	620	22	32 * 32	18	20
900	1050	910	1000	260	670	22	32 * 32	18	20
1000	1150	1010	1100	260	720	22	32 * 32	22	20
1100	1250	1110	1200	300	790	24	32 * 32	22	20
1200	1350	1210	1300	300	840	24	32 * 32	22	20
1300	1450	1310	1400	300	890	24	32 * 32	22	24
1400	1550	1410	1500	300	940	24	32 * 32	22	28
1500	1650	1510	1600	300	990	24	36 * 36	22	28
1600	1760	1610	1700	350	1040	24	36 * 36	22	28
1800	1963	1810	1910	400	1140	24	42 * 42	26	28
2000	2163	2010	2110	500	1240	24	42 * 42	26	32
2200	2390	2200	2340	550	1320	24	56 * 56	28	36

The next：Round shutter valve

The previous：Closed oblique plate valve