Electric Ventilation Valve

Electric ventilation butterfly valve, also known as electric flow indicator regulating butterfly valve, is composed of a quarter-turn electric actuator and a butterfly valve. It adopts a new structural form of a centerline disc plate welded with a short structural steel plate. It is suitable for two-position cut-off occasions. The valve body is made of the same material and processed into a sealing circle. Its applicable temperature depends on the choice of valve body material. The nominal pressure is less than 1.0 MPa. It is mainly used in industrial, metallurgical, flue gas desulfurization, and environmental protection pipelines as a gas medium to regulate flow or cut off. It is not suitable for high temperature, high pressure, corrosion-resistant, and wear-resistant industries.

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Description

Product Features:

Temperature range is virtually unlimited, allowing for the use of a wide variety of materials and enabling operation at ambient temperatures.
The valve plate and retaining ring create a tight seal, reducing leakage to approximately 1%. This level of leakage is considered acceptable for flue gas treatment applications.
The ventilation butterfly valve offers cost-effective advantages due to its simple design, low torque requirements, and compact actuator.
The valve’s simple structure ensures long service life and easy maintenance.
Innovative design results in a lightweight, fast-acting valve with a rational structure.
The valve requires minimal operating torque, making it easy and efficient to operate.
By selecting suitable materials, the valve can accommodate low, medium, and high temperatures as well as corrosive media.

Technical Parameters:

Material Grade	Body	Disc	Stem	Seat Seal	Packing	Applicable Temperature
Carbon Steel C (WCB)	WCB	WCB or 1Cr18Ni9	2Cr13	Same as body	PTFE, Flexible Graphite	≤ 300°C
Stainless Steel P(304)	1Cr18Ni9	1Cr18Ni9	1Cr18Ni9	Same as body	PTFE, Flexible Graphite	≤ 550°C
Stainless Steel R(316)	1Cr18Ni12Mo2	1Cr18Ni12Mo2	1Cr18Ni12Mo2	Same as body	PTFE, Flexible Graphite	≤ 550°C

Dimensions:

Nominal diameter (DN)	D	D1	L	L1	B	N-Φd
50	140	110	286	70	100	4-14
65	160	130	306	80	100	4-14
80	190	150	334	95	100	4-18
100	210	170	354	105	120	4-18
125	240	200	384	120	120	8-18
150	265	225	409	132	120	8-18
200	320	280	593	160	140	8-18
250	375	335	650	187	140	12-18
300	440	395	715	220	170	12-22
350	490	445	814	245	170	12-22
400	540	495	863	270	190	16-22
450	595	550	918	297	190	16-22
500	645	600	1016	322	160	20-22
600	755	705	1128	377	210	20-26
700	860	810	1233	430	210	24-26
800	975	920	1344	487	210	24-30
900	1075	1020	1560	537	250	24-30
1000	1175	1120	1660	587	250	28-30
1200	1405	1340	1890	687	250	32-33
1400	1630	1560	2670	760	300	36-36
1600	1830	1760	2810	895	300	40-39
1800	2045	1970	3020	995	300	44-39
2000	2265	2180	3220	1095	300	48-42