Premium Quality Ventilation Butterfly Valve for Industrial Applications

• Customization: Available
• Media: Gas
• Driving Mode: Manual
• Model NO.: DN200
• Connection Form: Clamp
• Structure: Centre Sealing
• Seal Form: Force Sealed
• Working Temperature: Medium Temperature (120°C<T<450°C)
• Material of Seal Surface: Metal Hard Sealed
• Valve Body: Forge Welding
• Application: Industrial Usage
• Material: Carbon Steel/Stainless Steel/Cast Iron
• Drive Mode: Pneumatic
• Valve Function: Switch/Adjustment
• Specification: DN200
• Trademark: SENOTAY
• Origin: Cangzhou, Hebei Province, China
• HS Code: 8481803990
• Production Capacity: 50000
• Package Size: 30.00cm * 30.00cm * 10.00cm
• Package Gross Weight: 30.000kg

Product Description

Product Description

Ventilation Butterfly Valve Introduction
A ventilation butterfly valve is a crucial component in ventilation and air - conditioning systems. It is designed to regulate the flow of air in ducts, playing a significant role in maintaining optimal air circulation and environmental conditions.
Principle of Operation
The valve operates based on a simple yet effective mechanism. It consists of a circular disc (the "butterfly") that rotates on a shaft. When the disc is perpendicular to the direction of air flow, it blocks the passage, completely shutting off the air. As the disc rotates, the opening area gradually increases, allowing more air to pass through. This rotational movement can be manually controlled by a handle or automatically actuated by an electric or pneumatic actuator, enabling precise control over the air volume.
Structural Features
Lightweight and Compact Design: The butterfly valve is generally lightweight, which makes it easy to install and maintain. Its compact structure takes up less space in the duct system compared to some other types of valves, making it a popular choice for applications where space is limited.
Sealing Performance: To ensure efficient air control, a high - quality sealing material is used around the disc. This helps to prevent air leakage, even under varying pressure conditions. The sealing material can be made of different substances such as rubber, silicone, or fluorine - based materials, depending on the specific requirements of the application.
Application Areas
Building Ventilation: In commercial and residential buildings, ventilation butterfly valves are used in heating, ventilation, and air - conditioning (HVAC) systems. They help to distribute fresh air, exhaust stale air, and adjust the air volume in different areas of the building, ensuring a comfortable and healthy indoor environment.
Industrial Ventilation: In industrial settings, these valves are essential for controlling the air flow in factories, power plants, and chemical plants. They can be used to extract dust - laden air, supply combustion air, or regulate the air flow in ventilation systems for equipment cooling.
Advantages
Low - cost and Energy - efficient: The simple structure of the butterfly valve results in a relatively low manufacturing cost. In terms of energy consumption, it requires less power to operate compared to some other valves, especially when using an automatic actuator. This energy - efficiency also contributes to cost savings in the long run.
Quick Response: The rotational movement of the disc allows for a rapid change in the air flow rate. Whether it is opening to let in more air or closing to restrict the flow, the butterfly valve can respond quickly to the control signals, making it suitable for applications that require fast - acting air flow adjustments.
In conclusion, the ventilation butterfly valve is an indispensable part of modern ventilation systems, with its simple operation, reliable performance, and wide - ranging applications.
 

Detailed Photos

Nominal diameterDN(mm)		H	Ho	0.05-0.1MPa				0.25MPa				0.6MPa
				D	Dr	D2	n-d	D	D1	D2	n-d	D	D1	D2	n-d
100	127	105	486	210	170	144	4-18	210	170	144	4-19	210	170	144	4-19
125	140	120	516	240	200	174	8-18	240	200	174	8-19	240	200	174	8-19
150	140	132	541	265	225	199	8-18	265	225	199	8-19	265	225	199	8-19
200	152	160	779	320	280	254	8-18	320	280	254	8-19	320	280	254	8-19
250	165	187	836	375	335	309	12-18	375	335	309	12-19	375	335	309	12-19
300	178	220	901	440	395	363	12-22	440	395	363	12-23	440	395	363	12-23
350	190	245	954	490	445	413	12-22	490	445	413	12-23	490	445	413	12-23
400	218	270	1003	540	495	463	16-22	540	495	463	16-23	540	495	463	16-23
450	222	297	1058	595	550	518	16-22	595	550	518	16-23	595	550	518	16-23
500	229	322	11il	645	600	568	20-22	645	600	568	20-23	645	500	568	20-23
600	267	377	1233	755	705	667	20-26	755	705	667	20-26	755	705	667	20-26
700	292	430	1338	860	810	772	24-26	860	810	772	24-26	860	310	772	24-26
800	318	487	1452	975	920	878	24-30	975	920	878	24-30	975	920	878	24-31
900	330	537	1588	1075	1020	978	24-30	1075	1020	978	24-30	1075	1020	978	24-31
1000	410	587	1689	1175	1120	1078	28-30	1175	1120	1078	28-30	1175	1120	1078	28-31
1200	470	702	1938	1375	1320	1280	32-30	1375	1320	1280	32-30	1405	1340	1295	32-34
1400	530	895	2670	1575	1520	1480	36-30	1575	1520	1480	36-30	1630	1560	1510	36-37
1600	600	995	2810	1790	1730	1690	40-30	1790	1730	1690	40-30	1830	1760	1710	40-37
1800	670	1095	3020	1990	1930	1890	44-30	1990	1930	1890	44-30	2045	1970	1915	44-40
2000	760	1200	3220	2190	2130	2090	48-30	2190	2130	2090	48-33	2265	2180	2125	48-43
2200	800	1310	3430	2405	2340	2295	52-33	2405	2340	2295	52-33	2475	2390	2335	52-43
2400	850	1420	3650	2605	2540	2495	56-33	2605	2540	2495	56-33	2685	2600	2545	56-43
2600	900	1530	3920	2805	2740	2695	60-33	2805	2740	2695	60-33	2905	2810	2750	60-49
2800	950	1640	4140	3030	2960	2910	64-36	3030	2960	2910	64-36	3115	3020	2960	64-49
3000	1000	1760	4360	3230	3160	3110	68-36	3230	3160	3110	68-36	3315	3220	3160	68-49
3200	1100	1870	4620	3430	3360	3310	72-36	3430	3360	3310	72-36	3525	3430	3360	72-49
3400	1200	1980	4840	3630	3560	3510	76-36	3630	3560	3510	76-36	3735	3640	3560	76-49
3600	1200	2120	5060	3840	3770	3720	80-36	3840	3770	3720	80-36	3970	3860	3720	80-56
3800	1200	2230	5400	4045	3970	3920	B0-39	4045	3970	3920	80-39	4180	4070	3970	80-62
4000	1300	2390	5620	4245	4170	4120	84-39	4245	4170	4120	84-39	4380	4270	4170	84-62