Electric Ventilation Butterfly Valve

Keywords: metering pump accessories

Classification:

Electric butterfly valve

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DESCRIPTION

Commodity name: Electric Ventilation Butterfly Valve

Product parameters

Electric ventilation butterfly valve actuator:

Control method: electric control (power drive)

Medium temperature: -40℃～+450℃ (steel plate coil welding), above +450℃ (stainless steel plate coil welding)

Rotation range: 0-90 degrees

Flow Characteristics: Approximate Percentage

Flange standard: GB/T9115-2000 steel pipe flange welding standard

Actuator: Can be equipped with angle stroke series electric actuator

Control mode: ordinary switch type (passive contact switch type), regulating type (input and output 4-20mA)

Electric ventilation butterfly valve performance indicators:

Item: indicator value

Basic error %: ±2.5

Times error%: 2.0

Dead zone %: 3.0

Always point deviation %: ±2.5

Rated stroke deviation %: +2.5

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

Electric ventilation butterfly valve performance characteristics:

1. Simple structure, large diameter, light weight and easy to operate.

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

4. The valve body is equipped with an oil sealing back-up ring. There is no visible gap between the sealing pairs and the leakage rate is small.

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.

Electric ventilation butterfly valve structure diagram

Technical parameters of electric ventilation butterfly valve:

Nominal diameter	DN50～DN1200
Nominal pressure	PN0.1、0.25、0.6、1.0Mpa
Connection Type	flange type
Valve body structure	Type A
test pressure	Seal 0.15Mpa, shell 0.11Mpa
Traffic characteristics	Linear/Equal Percent Characteristics
Sealed form	Open type, rear entry type (suitable for ultra-high temperature), sealed type (suitable for normal temperature)
Applicable media	Dusty gas, air, gas, high temperature flue gas

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