Application scope:

The applicable temperature of the ventilation butterfly valve depends on the material selection of the valve body, and the nominal pressure is ≤ 1.0MPa. It is generally applicable to the dusty cold air or hot air gas pipeline of ventilation and environmental protection projects in industries such as industry, metallurgy, environmental protection, chemical industry, building materials, power station, glass, etc. as a pipe control device for regulating the flow or cutting off the gas medium. The ventilation butterfly valve shall be installed horizontally in the pipeline. Structural features: 1. The ventilation butterfly valve has novel and reasonable design, unique structure, light weight and quick opening and closing. 2. The butterfly valve has small operating torque, convenient operation and labor-saving dexterity. 3. Suitable materials shall be adopted to meet the requirements of low, medium and high medium temperature and corrosive medium. 4. No connecting rod, bolt, etc. inside, reliable operation, long service life, not affected by medium flow direction

Construction features:

This butterfly valve is made of the same material as the valve body to be machined into a sealing ring with electric or pneumatic transmission. The applicable temperature is determined according to the body selection material, and the nominal pressure is not equal to 0.6 MPa, which is generally applicable to the ventilation regulating medium flow in industry, metallurgy, environmental protection and other pipelines. Its main features are:
1. The design is novel, reasonable, unique structure, light weight and fast.
2. Small torque, convenient operation and convenient operation.
3. Adapt the materials to meet the low, medium and high temperature and corrosive media.

Applicable media: Gas, dust and flue gas
Applicable temperature: -29~350℃
Driver: manual, pneumatic, electric, hydraulic, etc
Nominal pressure: 0.1~0.6MPa
Nominal size: DN100~4500mm

NO	Accessor name	Material
		GB
1	Body	Q235A 16Mn 304
2	Disc	Q235A 16Mn 304
3	Sealing ring	Q235A 16Mn 304
4	Stem	20Cr13 304
5	Packing	Graphite

Size		B	L	D	D1	N-φd	C
DN	NPS
80	3"	14	110	185	150	4-Φ18	99
100	4"	14	110	205	170	4-Φ18	99
150	6"	16	110	260	225	8-Φ18	115
200	8"	18	140	315	280	8-Φ18	115
250	10"	18	140	370	335	12-18	115
300	12"	20	170	435	395	12-Φ23	115
350	14"	20	170	485	445	12-Φ23	115
400	16"	20	190	535	495	16-Φ23	220
450	18"	22	190	590	550	16-Φ23	220
500	20"	22	190	640	600	16-Φ23	220