Cryogenic Butterfly Valve-Butterfly valve series-蝶阀厂家-上海冠环阀门制造有限公司

Product Features

1. The double sealing of valve stem lip-seal + packing can reduce the amount of packing.
2. Extend the valve cover design, strictly control the gap between the valve stem and the extended neck, reduce the cold flow channeling, and prevent the filling material icing caused by the large switch torque and the scratching of the valve stem.
3. The gland and sleeve adopt self-centering design to effectively prevent imbalance caused by uneven force on the gland.
4. Using finite element auxiliary design, the high-quality wall thickness of the extended valve cover is obtained to ensure that the cooling effect is better.
5. Drip board design, increase the cooling area, prevent the filling material from freezing; Effectively avoid condensate dripping onto the valve body.
6. The sealing surface of the valve seat is hardened to ensure that it will not be scratched at low temperature.
7. Set a drainage groove at the packing mouth of the extended valve cover to effectively prevent condensate from entering the packing cavity.
8. The special cutting method of the four open rings ensures that the four open rings form a complete ring structure after assembly, with uniform force and better pressure-bearing effect.
9. Internal top-loading structure, convenient for online maintenance of pipelines.
10. Detachable sealing pair design, with elastic supplement function at low temperature, lower leakage rate and better performance.
10. The fixed structure of the oblique cone pin effectively prevents the butterfly plate from reversing under the action of pressure difference, causing internal leakage.
12. All fasteners in contact with low temperature adopt full thread structure.

Main connection size（CLASS150）

DN	A	B	C	D	L	ΦW	H
in/mm	A	B	C	D	L	ΦW	H
3(80)	632	125	410	596	114	150	280
4(100)	662	141	440	626	127	150	280
6(150)	740	165	530	700	140	200	280
8(200)	795	214	585	755	152	300	315
10(250)	885	243	675	845	165	500	350
12(300)	974	286	740	918	178	500	350
14(350)	1059	312	825	1003	190	600	380
16(400)	1115	350	845	1035	216	700	380
18(450)	1200	383	930	1120	222	500	485
20(500)	1200	414	930	1120	229	500	485
24(600)	1400	484	1040	1260	267	600	538
30(750)	1655	611	1265	1495	318	500	621
32(800)	1655	611	1265	1495	318	600	621
36(900)	1840	736	1450	1680	330	700	666
40(1000)	2000	801	1580	1820	410	600	766
42(1050)	2000	801	1580	1820	410	700	766
48(1200)	2167	866	1717	1967	470	800	793

Main connection size（CLASS 300）

DN	A	B	C	D	L	ΦW	H
in/mm	A	B	C	D	L	ΦW	H
3(80)	632	125	410	596	114	150	280
4(100)	662	141	440	626	127	300	315
6(150)	760	189	550	720	140	300	315
8(200)	849	236	615	793	152	500	350
10(250)	939	272	705	883	165	600	380
12(300)	1010	310	740	930	178	400	465
14(350)	1115	335	845	1035	190	500	485
16(400)	1235	389	875	1095	216	500	540
18(450)	1370	422	1010	1230	222	600	540
20(500)	1410	462	1050	1270	229	500	620
24(600)	1525	531	1135	1365	267	600	660
30(750)	1670	671	1340	1420	318	500	730
32(800)	1850	671	1430	1528	318	600	795
36(900)	1968	801	1564	1680	330	900	810

Main connection size（CLASS 600）

DN	A	B	C	D	L	ΦW	H
in/mm	A	B	C	D	L	ΦW	H
4(100)	678	185	448	638	190	300	315
6(150)	789	238	555	733	210	500	350
8(200)	875	263	605	795	230	600	380
10(250)	1095	328	735	955	250	400	465
12(300)	1178	365	788	1018	270	500	485
14(350)	1300	390	910	1140	290	500	534
16(400)	1370	440	980	1210	310	500	622
18(450)	1483	460	1033	1283	330	500	622
20(500)	1595	526	1145	1395	350	700	658
24(600)	1685	623	1235	1485	390	500	730

Main connection size（CLASS 900）

DN	A	B	C	D	L	ΦW	H
in/mm	A	B	C	D	L	ΦW	H
6(150)	789	238	555	733	225	500	340
8(200)	936	293	666	856	275	400	464
10(250)	1130	345	770	990	325	400	464
12(300)	1260	378	870	1100	375	400	520
14(350)	1373	456	983	1213	425	500	623
16(400)	1420	492	1030	1260	475	500	623
18(450)	1510	510	1120	1370	500	700	656
20(500)	1670	590	1220	1470	575	800	656
24(600)	1830	673	1380	1630	675	700	793