Brief Introduction to Electric Butterfly Valve

The electric butterfly valve is reasonably designed, easy to assemble and disassemble and easy to repair.

The electric butterfly valve features simple and compact structure, light weight, 90 ° rotation and fast opening and closing.

Eccentric structure is adopted to reduce the friction of the sealing ring and extend the service life of the valve.

The sealing structure is reasonably designed to achieve complete sealing, zero leakage and adapt to worse working conditions.

Replace the sealing ring of valve plate, "0" - shaped ring, butterfly plate, spindle and other materials, which can adapt to various media and different temperatures. Especially, the electric butterfly valve adopts stainless steel steel ring, which is corrosion resistant and wear-resistant, making the scope of application more extensive.

Technical parameters of electric butterfly valve

KVGD9012-2.5P electric butterfly valve is a new generation of electric butterfly valve developed by our factory by introducing advanced foreign technology and combining with domestic manufacturing process. Electric butterfly valves are widely used in high-temperature gas pipelines in metallurgy, building materials, chemical industry, power station, glass and other industries. As high-temperature gas medium flow regulation or cut-off devices, electric butterfly valves can be used with various actuators to form equipment with different performance.

The valve body and valve plate of the electric butterfly valve are made of high-quality heat-resistant steel materials. The electric butterfly valve is characterized by high temperature resistance, small volume, flexible rotation, long service life, convenient operation and maintenance, etc.

Performance characteristics of electric butterfly valve:

Nominal pressure: 0.25MPa

Rated angle: 0 ～ 90 °

Ordinary leakage rate: ≤ 3% Rear seat low leakage: ≤ 1%

Operating temperature: P9 t ≤ 950 ℃; P8 t ≤ 850 ℃; P7 t ≤ 750 ℃; P6 t ≤ 950 ℃;

P5 t ≤ 550 ℃; P4 t ≤ 450 ℃; P3 t ≤ 350 ℃; P2 t ≤ 250 ℃;

Regulating type: KVHD9012A-2.5 (equipped with ZKJ actuator or matched with the actuator selected by the user);

Voltage: 200V.Ac or 380V.Ac

Input signal: 0-10 (4-20) mA. DC

Two-switch type: KVHD9012B - 2.5 (with electric device)

Applicable medium: high-temperature flue gas or other dust-containing high-temperature gas

KVHD971 wafer and KVHD941 flanged electric butterfly valve are of integrated structure, with input control signal (4-20mADC or 1-5VDC) and unit phase power supply to control the operation. The electric butterfly valve is featured by strong function, small volume, light weight, reliable performance, simple supporting and large flow capacity. The electric butterfly valve is especially suitable for occasions where the medium is viscous, contains particles and fiber. Electric butterfly valves can be widely used in food, environmental protection, light industry, petroleum, chemical industry, teaching equipment, papermaking, power and other industrial process automatic control systems.

Electric butterfly valve body:

Nominal diameter of electric butterfly valve: DN50~400mm

Nominal pressure of electric butterfly valve: PN1.6, 4.0, 6.4MPa

Connection type: flange type, in accordance with JB/T78-59 JB79-59 wafer flange connection

Electric butterfly valve material: HT200 ZG25 ZG1Gr18Ni9Ti ZGOCr18Ni12Mo2Ti

Upper bonnet:

Normal temperature type: - 20 ～+200 ℃

Heat dissipation type:+200 ～+450 ℃

Gland type: bolted compression type

Electric butterfly valve packing: V-shaped PTFE, flexible graphite, asbestos textile packing HT200, ZG25, 1Cr18Ni9Ti, rubber lining, PTFE sealing material: stainless steel, rubber, PTFE

In-valve components:

Valve core form of electric butterfly valve: valve plate

Flow characteristic: equal percentage characteristic or straight characteristic

Electric butterfly valve material: 1Cr18Ni9Ti OCr18Ni12M02Ti

Electric butterfly valve actuator:

Type: Optional PSQ series, 3810 series or NB series electronic angle stroke actuator QSQ series or DYR series are also available.

Application of electric butterfly valve

Electric butterfly valves are widely used in high-temperature gas pipelines in metallurgy, building materials, chemical industry, power station, glass and other industries,