Electromagnetic Butterfly Valve - Product Overview
Our D971F electric butterfly valve, developed by our company, is suitable for applications requiring two-way switching (cut-off) control or regulation. The valve structure is divided into metal seal and soft seal designs. The metal seal utilizes a "U"-shaped stainless steel seal ring, which, as a precise elastic seal, makes a three-dimensional eccentric contact with the polished butterfly plate. This design resolves the issue of sliding contact friction at the sealing surface during the 0° to 10° opening and closing process of traditional eccentric butterfly valves. It achieves immediate separation of the sealing surface upon opening and immediate sealing upon closing, thereby extending the service life and improving the sealing performance. The soft seal structure employs a clamped butterfly valve body, lined with fluorine or rubber on its inner wall to ensure complete sealing with the butterfly plate, guaranteeing zero leakage of the medium. Therefore, the electric butterfly valve, electric explosion-proof cut-off valve, and electric PTFE-sealed butterfly valve are widely applied to pipelines carrying corrosive media such as metallurgy, electricity, petroleum, chemicals, air, coal gas, combustible gases, and water supply and drainage, serving as an optimal device for regulating flow and cutting off fluids.
Electromagnetic Butterfly Valve - Product Features
(1) The electric butterfly valve features a simple and compact structure, light weight, easy installation and disassembly, and convenient maintenance.
(2) The electric cutting explosion-proof butterfly valve uses a stainless steel "U"-shaped sealing ring, which has certain elasticity and excellent sealing properties with the butterfly plate, regardless of high or low temperatures.
(3) The three-dimensional eccentricity of the electric butterfly valve is meticulously calculated, resulting in almost no friction between the "U" seal and the butterfly plate. This ensures a long service life and features a tighter closure as it is shut.
(4) The electric cutting explosion-proof butterfly valve's butterfly plate sealing surface is made of surfacing cobalt-based hard alloy, which boasts wear resistance and a long service life.
(5) The electric switch butterfly valve has a simple structure, where "switching" is achieved by simply rotating the valve stem 90°. It offers flexible, convenient, and labor-saving operation, unaffected by the pressure of the medium, and boasts reliable sealing performance.
(6) The electric cutting butterfly valve features high-temperature resistance, low-temperature resistance, and strong corrosion resistance.
Electric Actuated Butterfly Valve - Technical Specifications
| Nominal Pipe Size (mm) | 50～1200 |
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| Nominal Pressure | PN0.6、1.6、2.5MPa |
| Connection Type | Clamping type |
| Valve plate style | Vertical Plate |
| Flow characteristics | Approximate quick-opening type |
| Motion Range | 0～90° |
| Leakage amount | In accordance with GB/T4213-92, for Kv value of 10-4, soft seal: zero leakage |
| Basic Tolerance | ±2.5% |
| Return difference | ±2.5% |
| Dead Zone | 1% (adjustable) |
| Adjustable Range | 50:1 |
| Configuration actuator | Available with PSQ, HQ, UNIC, 361RS, JO series angular travel electric actuators |
| Control Method | Toggle Position Lights (dual-position switch control), Smart Adjustment (4-20mA analog signal control) |
Electric Actuated Butterfly Valve - Actuator Technical Specifications
| Actuator Type | Parameters of the Imported OV-TORK Series Actuators | Parameters of the Imported 3610R Series Actuators | BV-TORK Series Actuator Parameters |
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| Power Voltage | Standard: 220V AC Single Phase; Optional: 110V AC Single Phase, 380/440V AC Three Phase, 24V/110V/220V AC |
| Output Torque | 50N·M～2000N·M | 50N·M～1500N·M | 50N·M～3000N·M |
| Motion Range | 0～90° 0～360° | 0～90° | 0° to 90°, 0° to 270° available |
| Control Method | Switch-in-Place Indicator (two-position switch), Passive Contact Signal, 1/5K Potentiometer, Intelligent Adjustment (4-20mA Analog Signal Control) |
| Action Time | 15 sec/30 sec/60 sec | 10/15/30 seconds | 18S～112S |
| Protective device | Overheat Protection | Overload Protection | Built-in overheat protection and overload protection |
| Ambient Temperature | -30°～60° | -30°～60° | -20℃～+70℃ |
| Manual operation | With handle for operation | With handle for operation | Mechanical clutch mechanism, with handwheel operation |
| Mechanical Limit | Electrical and mechanical double limit | Electrical and mechanical dual limiting | 2 external adjustment bolts |
| Ingress Protection (IP) rating | IP65 | IP55 | IP65, IP67, Customizable IP68 |
| Intrinsically Safe Rating | Non-explosive | ExdⅡ BT4 | ExdⅡ BT4,ExdⅡ CT6 |
| Position Measurement | Optional switch or potentiometer | Proportional Control Unit | Potentiometers, Proportional Control Units |
| Drive Motor | 8W/E | AC reversible motor | Cage-type asynchronous motor |
| Input interface | 1/2" Entry Line Lock | 2-PF 1/2" Input Line Lock | 2 PF 3/4" |
| Housing Material | Aluminum Alloy | Steel, Aluminum Alloys | Steel, aluminum alloy, aluminum bronze, polycarbonate |
| Outer coating | Dry powder, epoxy polyester, with strong anticorrosive properties |
Electromagnetic Butterfly Valve - Parts and Materials
| Part Name | Material |
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| Valve body | Ductile iron castings, cast steel, alloy steel, stainless steel |
| Butterfly Plate | Gray cast iron, ductile iron, cast steel, stainless steel, and special materials |
| Seal ring | Various rubbers, PTFE, stainless steel |
| Valve Stem | 2Cr13, stainless steel |
| Filling Material | O-rings, flexible graphite |
Electromagnetic Butterfly Valve - Performance Specifications
| Nominal Pipe Size (mm) | DN50～1200 |
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| Nominal Pressure | PN(MPa) | 0.6 | 1.0 | 1.6 | 2.5 |
| Test Pressure | Tensile Test | 0.9 | 1.5 | 2.4 | 3.75 |
| Sealing Test | 0.66 | 1.1 | 1.76 | 2.75 |
| Low-pressure Airtightness Test | 0.5～0.7 |
| Applicable Medium | Air, water, wastewater, steam, gas, oil products, etc. |
| Applicable Temperature | Carbon Steel: -29℃ to 600℃; Stainless Steel: -40℃ to 600℃ |
Electric Butterfly Valve, Application Standard
| Design Standards | GB/T2238-1989 |
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| Flange Connection Dimensions | GB/T9113.1-2000；GB/T9115.1-2000；JB78 |
| Structural Length | GB/T12221-1989 |
| Pressure Test | GB/T13927-2000；JB/T9092-1999 |
Electromagnetic Butterfly Valve Product Selection
(1) Valve Body Parameters: nominal bore size, operating pressure, process medium, application, and valve body material, etc.
(2) Actuator Parameters: Power Voltage, Control Method, Control Signal (4-20mA, 1-5V), Operating Mode (Electrical-Open, Electrical-Closed)
Please provide as detailed technical specifications as possible for our production and technical staff to accurately select the appropriate products for you. If you have any questions, feel free to call us; we are committed to providing you with excellent service!
Related Names: Electric Butterfly Valve, Electric Explosion-Proof Cut-off Butterfly Valve, Electric PTFE Sealed Butterfly Valve
