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Product Usage

    D341H, D341W PN0.5 ~ PN1 Ventilation Butterfly Valve Regulates the flow or cut-off device as a gas medium in dusty cold air or hot-air gas pipes for ventilation and environmental projects in metallurgy, chemical industry, building materials, power plants and glass industries.

  

Features

the structure of the ventilation butterfly valve is welded by using the MID-line butterfly plate and the short-structure steel plate. Therefore, there are no components such as connecting rods and bolts in the interior of the butterfly valve and no component problems occur during use. Therefore, the failure rate is very low. Very easy to use. Is a reliable valve device. and because its sealing system uses a metal seal, although the sealing effect is not as flexible seal, but the service life is longer than the flexible seal, and has high temperature characteristics. so in building materials, electricity, metallurgy and other industries have a wide range of applications. In the medium temperature of not more than 300 degrees pipeline, can be the perfect connection and closing adjustment. this butterfly valve can also be customized according to customer needs, very user-friendly.

Because the butterfly valve butterfly valve body and the gap between the large, there is enough room for expansion, so in the course of its use can effectively prevent the temperature change due to thermal expansion and contraction of the situation, it will not produce the butterfly Card stuck phenomenon. There are a variety of common butterfly valve drive, a manual drive, there are electric drive and pneumatic drive, etc., the choice of a very large room. Because of the material reason, this kind of butterfly valve also possesses the characteristic of the high temperature, when the switch will not have the friction, the service life is very long. Ventilated butterfly valve is a valve made of welded steel plate, it has the characteristics of small size, light weight and easy installation, but also because of its small flow resistance, large flow, will not be affected by high temperature expansion. Its driving torque is small, the switch is very flexible, so it is easy to operate. by the industry's favorite.

  

Installation Notes

Ventilation butterfly valve installation is crucial, because the installation is directly related to the quality of machinery used, so we must be careful when installing the ventilation butterfly valve, and pay attention to the relevant issues! Here Xiaotian Xiaobian take everyone together to explore it!

the structure of the ventilation butterfly valve is designed and manufactured with a new type of structure welded by a midline dish and a short structural steel plate. the utility model has the advantages of compact structure, light weight, convenient installation, small flow resistance, large flow, avoiding the influence of high temperature expansion and convenient operation. Ventilation butterfly valve without connecting rods, bolts, etc., reliable, long service life. Ventilation butterfly valve is a non-closed butterfly valve, widely used in building materials, metallurgy, mining, electricity and other production processes of medium temperature ≤ 300 ℃ Nominal pressure of 0.1 Mpa pipeline, to connect, open or close or adjust the media volume.

Ventilation butterfly valves should be installed horizontally in pipelines in general, and should be used in the dusty cold air or hot air ducts for ventilation and environmental protection projects in chemical industry, building materials, power stations and glass industries, and to be used as the pipeline control device for regulating the flow rate or cutting off of the gas medium.

 

Product main parameters

Nominal pressure(MPa)	0.05 MPa	Medium temperature	-30-350 degree Celsius
Strength test	0.1 MPa	Suitable media	Air,water
Medium flow rate	25 m/s	Leak rate	3%

 

[the main shape and connection size]

DN	D	D1	L	L1	L2	n-d	b
300	405	370	120	716	220	8-12	10
350	455	420	140	786	240	8-14	10
400	505	470	140	924	270	12-18	10
450	570	530	160	999	295	12-18	10
500	620	580	160	1079	325	12-18	10
600	720	680	180	1140	380	16-18	12
700	820	780	180	1240	430	16-18	12
800	920	880	200	1350	490	16-18	12
900	1040	990	200	1450	540	16-18	14
1000	1140	1090	220	1550	590	20-18	14
1100	1240	1190	220	1800	640	20-18	14
1200	1340	1290	240	1900	690	20-18	14
1300	1440	1390	240	2020	760	20-18	16
1400	1540	1490	260	2120	810	24-18	16
1500	1640	1590	260	2220	860	24-18	16
1600	1740	1690	280	2390	980	24-18	16
1700	1840	1790	280	2590	1030	28-22	16
1800	1940	1890	300	2709	1096	28-22	16
1900	2040	1990	300	2826	1146	32-22	16
2000	2150	2090	320	2926	1196	32-26	16
2200	2360	2300	340	3126	1296	36-26	16
2400	2560	2500	360	3326	1396	36-26	18
2600	2760	2700	380	3526	1496	40-26	18
2800	2960	2900	400	3726	1596	40-26	18
3000	3190	3110	400	4098	1698	44-30	18
3200	3390	3310	440	4338	1798	44-30	20
3400	3590	3510	440	4578	1898	48-30	20
3600	3790	3710	480	4780	1998	48-30	20
3800	4000	3910	480	5000	2098	52-30	22
4000	4210	4120	520	5200	2210	52-30	22

Structure picture