Explosion proof stainless steel ventilation butterfly valve-Fornitore globale

No. 118, Building 4, Yulin Electromechanical City, No. 58 Xingyuan East Road, Zhangdian District, Zibo City, Shandong Province

Electric ventilation butterfly valve

Valve model: D941W

Diameter specification: DN50～DN1200

Structural form: Medium line (flange)

Valve body material: cast steel WCB, stainless steel 304, stainless steel 316

Nominal pressure: PN1、PN2.5、PN6、PN10

Applicable temperature: -40 ℃ to+450 ℃ or above

Application scope: Industrial, metallurgical, flue gas dust removal, environmental protection and other pipelines

Product features: simple structure, large diameter, light weight, easy operation

Introduction to electric ventilation butterfly valve:

Electric ventilation butterfly valve, also known as electric air volume control butterfly valve, consists of an angular stroke electric actuator and a butterfly valve. It is designed and manufactured in a new structural form of welding a midline disc plate and a short structural steel plate. It is suitable for situations where two positions are cut off. The valve body is made of the same material and processed into a sealing ring. Its applicable temperature depends on the valve body material, and the nominal pressure is ≤ 1.0MPa. It is mainly used as a gas medium to regulate flow or cut off in industrial, metallurgical, flue gas dust removal, environmental protection and other pipelines. Not suitable for industries with high temperature resistance, high pressure resistance, corrosion resistance, wear resistance, etc.

Performance characteristics of electric ventilation butterfly valve:

1. Simple structure, large diameter, light weight, and easy operation.

2. Small driving torque, flexible opening and closing, easy operation.
3. It can be installed in multiple workstations and will not be affected by the medium.

4. Oil seal retaining rings are installed on the valve body, and there is no visible gap between the sealing pairs, resulting in a low leakage rate.

5. The expansion gap between the butterfly plate and the valve body is large, which can effectively prevent jamming caused by thermal expansion and contraction.

Working principle of electric ventilation butterfly valve:

The electric ventilation butterfly valve is driven by an electric actuator to input a power signal, and is driven by voltage to freely rotate the disc plate within a range of 90 °, in order to achieve the opening and closing or adjustment of the medium flow rate. It is particularly suitable for flow regulation and pressure control in low-pressure places such as air or other gases with low pressure. In addition, it is widely used in high-temperature gas and corrosive medium working conditions.

Electric ventilation butterfly valve actuator:

Control mode: Electric control (power driven)

Medium temperature:- forty℃~+450 ℃ (steel plate welding),+450 ℃ or above (stainless steel plate welding)

Corner range: 0-90 degrees

Traffic characteristics: approximate percentage

Flange standard: GB/T9115-2000 Welding standard for steel pipe flanges

Actuator: supporting role travel series electric actuator

Control method:Ordinary switch type (passive contact switch type), regulating type (input/output 4-20mA)

Performance indicators of electric ventilation butterfly valve:

Project: Indicator Values

Basic error%: ± 2.5

Return difference%: 2.0

Dead zone%: 3.0

Constant point deviation%: ± 2.5

Rated travel deviation%:+ two point five

Allowable leakage rate 1/h: 2 × 10-2 × valve rated capacity

Technical parameters of electric ventilation butterfly valve:

Nominal Diameter	DN50～DN1200
nominal pressure	PN0.1、0.25、0.6、1.0Mpa
Connection form	Flange style
Valve body structure	type a
test pressure	Sealed at 0.15Mpa, shell at 0.11Mpa
Traffic characteristics	Linear/Equal Percentage Characteristics
sealing form	Open, rear entry (suitable for ultra-high temperature), sealed (suitable for room temperature)
Applicable Medium	Dust containing gases, air, coal gas, and high-temperature flue gas