Electric wafer type hard seal butterfly valve-Electric valve series-电动阀厂家-上海冠环阀门制造有限公司

Product Structure Features

Triple offset butterfly valve has one more offset feature compared to double offset design, which is the seat cone axis offset from the stem centerline that reduces the operating torque. Triple offset butterfly valves are widely used in power plant, petrochemical, metallurgy, water supply and drainage system, municipal construction as throttling flow and shutoff equipments.

The Main Structure Features Include

1.Without any friction between disc and sealing surface when opening or closing,

2.Can be installed in any position；

3.Zero leakage design;

4.Soft seat or metal seat is available as per customer request;

5.Unidirectional seal or Bidirectional seal is available as per customer request;

6.Spring loaded packing can be chosen;

7.Low emission packing can be chosen according to ISO 15848 requirement;

8.Stem extended design can be chosen;

9.Cryogenic temperature or ultra low temperature butterfly valve can be chosen as per customer request.

Main external connection dimensions

Nominal diameter (DN)	Main dimensions			Flange size
	L	H	H1	1.0MPa			1.6MPa			2.5MPa
	L	H	H1	D	D1	n-Фd	D	D1	n-Фd	D	D1	n-Фd
50	108	112	530	165	125	4-18	165	125	4-18	165	125	4-18
65	112	115	530	185	145	4-18	185	145	4-18	185	145	8-18
80	114	120	565	200	160	4-18	200	160	8-18	200	160	8-18
100	127	138	600	220	180	8-18	220	180	8-18	235	190	8-22
125	140	164	640	250	210	8-18	250	210	8-18	270	220	8-26
150	140	175	705	285	240	8-22	285	240	8-22	300	250	8-26
200	152	200	775	340	295	8-22	340	295	12-22	360	310	12-26
250	165	243	945	395	350	12-22	405	355	12-26	425	370	12-30
300	178	250	1070	445	400	12-22	460	410	12-26	485	430	16-30
350	190	280	1140	505	460	16-22	520	470	12-26	555	490	16-33
400	216	305	1210	565	515	16-26	580	525	16-26	620	550	16-36
450	222	350	1335	615	565	20-26	640	585	16-30	670	600	20-36
500	229	380	1415	670	620	20-26	715	650	20-30	730	660	20-36
600	267	445	1605	780	725	20-30	840	770	20-33	845	770	20-39
700	292	480	1844	895	840	24-30	910	840	24-36	960	875	24-42
800	318	530	2040	1015	950	24-33	1025	950	24-39	1085	990	24-48
900	330	580	2255	1115	1050	28-33	1125	1050	28-39	1185	1090	28-48
1000	410	650	2380	1230	1160	28-36	1255	1170	28-42	1320	1210	28-56
1200	470	760	2640	1455	1380	32-39	1485	1390	32-48	1530	1420	32-56