Pneumatic Operated Flange Butterfly Valve

INTRODUCTION

Product Advantages
1、The structure is simple and compact, the rotation of 90 °is quickly to open and close.
2、All products can provide the pressure test: All Yuming products can provide the pressure test report before leaving the factory.
3、High performance seat rubber: The rubber content is 50%, and the switch life is more than 30000 times. The rubber and valve body are joined by vulcanization process, and the joint is tight and doesn’t fall off;
4、Axial seal: The valve shaft has a double seal structure design of oil seal and O-ring, smaller torque and reliable seal; The upper and lower shaft holes of DN350 and above large diameter valves are designed with packing box structure, and the packing is pressed by the gland to realize sealing.
5、 Surface coating: Epoxy powder coating is adopted, with strong adhesion and good weather resistance. It can be used indoors and outdoors.

6、Pneumatic Operated: The pneumatic operated adopts double piston rack structure, precise meshing, high efficiency and outputting constant torque. The cylinder body is made of extruded aluminum alloy with high strength and hardness. The sliding bearing is made of low friction materials, low friction coefficient, flexible rotation and long service life.
7、The design of shaft is blow-off resistant: The no-pin butterfly valve is designed with anti blow-off structure, and pneumatic operated can be changed under pressure.

DATA

DN50--DN350

DN		A	PN16		PN10		150LB		D2	L	B	φD3	φD4	n1-φd1	φD5
			D1	n-φd	D1	n-φd	D1	n-φd
2″	DN50	108	125	4-19	125	4-19	120.7	4-19	90	25	9	65	50	4-8	135
2.5″	DN65	112	145	4-19	145	4-19	139.7	4-19	110	25	9	65	50	4-8	135
3″	DN80	114	160	8-19	160	8-19	152.4	4-19	124	25	9	65	50	4-8	135
4″	DN100	127	180	8-19	180	8-19	190.5	8-19	150	28	11	90	70	4-10	135
5″	DN125	140	210	8-19	210	8-19	215.9	8-22.4	176	28	14	90	70	4-10	135
6″	DN150	140	240	8-23	240	8-23	241.3	8-22.4	200	28	14	90	70	4-10	135
8″	DN200	152	295	12-23	295	8-23	298.5	8-22.4	258	33	17	125	102	4-12	270
10″	DN250	165	355	12-28	350	12-23	362	12-25.4	310	33	22	125	102	4-12	270
12″	DN300	178	410	12-28	400	12-23	431.8	12-25.4	362	33	22	125	102	4-12	270
14″	DN350	190	470	16-28	460	16-23	476.3	12-28.4	421	45	22	125	102	4-12	270

DN400--DN2000

DN		L	PN16		PN10		150LB		H	φd	K	φD2	φD3	n1-φd1	N-b
			D1	n-φd	D1	n-φd	D1	n-φd
16″	DN400	216	525	16-31	515	16-28	539.8	16-28.4	52	33.15	36.2	175	140	4-18	1-10
18″	DN450	222	585	20-31	565	20-28	577.9	16-31.8	52	38	41	175	140	4-18	1-10
20″	DN500	229	650	20-34	620	20-28	635	20-31.8	64	41.15	44.2	175	140	4-18	1-12
24″	DN600	267	770	20-37	725	20-31	749.3	20-35.1	70	50.65	54.7	210	165	4-22	1-16
28″	DN700	292	840	24-37	840	24-31	863.6	28-35.1	95	63.35	71.4	300	254	8-18	2-18
32″	DN800	318	950	24-40	950	24-34	977.9	28-41.1	95	63.35	71.4	300	254	8-18	2-18
36″	DN900	330	1050	28-40	1050	28-34	1085.8	32-41.1	130	75	84	300	254	8-18	2-20
40″	DN1000	410	1170	28-43	1160	28-37	1200.2	36-41.1	130	85	95	300	254	8-18	2-22
48″	DN1200	470	1390	32-49	1380	32-40	1422.4	44-41.1	150	105	117	350	298	8-22	2-28
56″	DN1400	530	1590	36-49	1590	36-44	1651	48-47.8	200	120	134	415	356	8-33	2-32
60″	DN1500	570	1710	36-57	1700	36-44	1759	52-47.8	200	140	156	415	356	8-33	2-36
64″	DN1600	600	1820	40-56	1820	40-50	--	--	200	140	156	415	365	8-33	2-36
72″	DN1800	670	2020	44-56	2020	44-50	2096	60-50.8	280	160	178	475	406	8-40	2-40
80″	DN2000	760	2230	48-62	2230	48-50	--	--	280	160	178	475	406	8-40	2-40