Electric ventilated butterfly valve

Shanghai Zhouteng Pump Valve Manufacturing Co., Ltd.

Contact Info

Room 322A, Building 3, No. 900 Lanfeng Road, Fengxian District, Shanghai,
刘海辉
17092113333

I. Introduction:
The electric ventilation butterfly valve features low driving torque, flexible opening and closing, and convenient operation. An oil-seal retaining ring is installed on the valve body, with no visible gap between the sealing pairs, resulting in low leakage rate. The expansion gap between the butterfly plate and the valve body is large, which can effectively prevent jamming caused by thermal expansion and contraction. This valve can be equipped with various driving devices, such as manual devices, worm gear drives, pneumatic devices, and electric devices. Ventilation butterfly valves are widely used in industrial pipelines of metallurgy, chemical industry, electric power, building materials, mining, etc., to control or regulate gaseous media. This air duct regulating butterfly valve is widely applicable to gas pipelines for heating ventilation and environmental protection in industries such as power stations, metallurgy, mining, and cement, to regulate the flow of media.

II. Features:
This valve is a vertical butterfly valve with regulating characteristics, composed of main components such as a valve body, valve plate, valve shaft, and driving device. All parts adopt a welded structure, and the shaft end is sealed with flexible graphite braided packing, which is high-temperature resistant. The opening and closing of the valve plate are driven by a handwheel to operate the manual device. The final output torque of the manual device is transmitted to the valve shaft, which drives the valve plate to rotate, so as to change the inner cross-sectional area of the pipeline, thereby achieving the functions of large-area media cutoff, media pressure reduction, or media flow regulation. The regulating angle ranges from 0° to 90°.

III. Materials of Components:

Component Name	Material
Valve Body	Carbon steel, stainless steel, chromium-nickel-molybdenum-titanium steel, chromium-molybdenum-titanium steel, and other special materials
Butterfly Plate	Carbon steel, stainless steel, chromium-nickel-molybdenum-titanium steel, chromium-molybdenum-titanium steel, and other special materials
Sealing Ring	Same as the valve body
Valve Stem	Carbon steel, 2Cr13, stainless steel, chromium-nickel-molybdenum-titanium steel
Packing	Fluoroplastic, flexible graphite

IV. Technical Parameters:

Nominal Diameter	DN(mm)	50~2000
Nominal Pressure	PN(MPa)	0.05	0.25	0.6
Test Pressure Ps(MPa)	Strength Test	0.075	0.375	0.9
Test Pressure Ps(MPa)	Seal Test	Leakage ≤1.5%
Applicable Medium	Coal gas, dust-containing gas, flue gas, etc.
Driving Mode	Electric

V. External Dimensions:

DN	D	D1	n-do	b	L	Weight
DN	D	D1	n-do	b	L	D41	D341	D941
200	320	280	8-18	16	140	34	42	78
250	375	335	12-18	16	140	38	46	83
300	440	395	12-22	16	170	48	54	93
350	490	445	12-22	16	170	56	64	95
400	540	495	16-22	16	190	73	81	98
450	595	550	16-22	16	190	81	110	140
500	645	600	20-22	16	190	99	128	179
600	755	705	20-26	18	210	127	157	213
700	860	810	24-26	18	210	152	199	267
800	975	920	24-30	18	210	182	229	326
900	1075	1020	24-30	18	250	240	287	385
1000	1175	1120	28-30	18	250	383	430	528
1100	1275	1220	28-30	18	250		620	682
1200	1375	1320	32-30	18	250		765	827
1400	1575	1520	36-30	18	300		1188	1250
1600	1790	1730	40-30	22	300		1393	155
1800	1990	1930	44-30	22	300		1800	1865
2000	2190	2130	48-30	22	300		2130	2190
2100	2300	2240	52-33	22	300			2785
2200	2405	2340	52-33	26	350			3690
2400	2605	2540	56-33	26	350			4720
2600	2805	2740	60-33	26	350			5530
2800	3030	2960	64-36	26	400			6035
3000	3230	3160	68-36	26	400			6280

	Machinery & Equipment/Valves/Butterfly Valves

Shanghai Zhouteng Pump Valve Manufacturing Co., Ltd.

刘海辉

17092113333