Electric butterfly valves are pivotal in the realm of industrial applications, offering a blend of automation, efficiency, and reliability. These valves, a combination of electric actuators and butterfly valves, are celebrated for their straightforward design, lightweight, longevity, easy installation, and maintenance. Furthermore, they present a cost-effective solution without compromising quality or performance. Given their extensive application across diverse conditions—ranging from high temperatures and pressures to corrosive environments and various fluids—it’s crucial to understand the nomenclature behind China’s electric butterfly valve models for accurate selection and usage.
The Methodology Behind Electric Butterfly Valve Model
The model designation system for electric butterfly valves in China is derived from national standards for valve selection, encompassing several key parameters:
- Butteryfly Valve Code: D
- Actuation Method: 9 – Electric Actuator
- Connection Type: 4 – Flange Type, 6 – Welding, 7 – Wafer Type
- Structural Design: 1 – Center Line Structure, 2 – Double Eccentric, 3 – Triple Eccentric
- Seat/Sealing Material: H – Stainless Steel, W – Valve Body Processing, Y – Alloy, X – Rubber, J – Rubber Lining
- Nominal Pressure: 10 – 10Bars, 10K – Japanese Standard, 150LB – American Standard
- Valve Body Material: Z – Gray Iron, Q – Ductile Iron QT450, C – Carbon Steel WCB, P – Stainless Steel 304, R – Stainless Steel 316, I – Chromium Molybdenum Steel WC6/WC9
- Nominal Diameter: DN40-2200mm, 2”-60”
These parameters, except for temperature and medium, are reflected in the model, please kindly specifying the operating medium and temperature during selection.
Key Selection Criteria China Electric Butterfly Valve
Actuator Types
- Switch Type
- Modulating Type
- Intelligent Type
- Explosion-Proof Type
Valve Body Materials
| Body Material Code | Material Type | Applications |
|---|---|---|
| QT450 | Ductile Iron | Water, sewage, liquid applications |
| WCB | Carbon Steel | Oil, steam, gas applications |
| F46 | Lined with Fluorine | Acidic, corrosive gases and liquids |
| 304/316 | Stainless Steel | Weakly corrosive gases, liquids, high-temperature, high-pressure environments |
Seat Material Suitability by Temperature and Pressure
| Code | Material | Temperature Range |
|---|---|---|
| J | Rubber Lined | ≤80°C |
| X | EPDM Rubber | ≤120°C |
| F | PTFE | ≤150°C |
| FPA | – | ≤260°C |
| H | Stainless Steel | ≤425°C |
| I | Chrome Moly Steel | ≤590°C |
| 2520 | Stainless Steel | ≤1000°C |
Model Examples For China Electric Butterfly Valve
D971X-10Q-DN50-Electric Wafer Butterfly Valve
D represents butterfly valve, 9 represents electric, 7 represents wafer type, 1 represents center line structure, X represents rubber sealing ring, 10 represents nominal pressure, Q represents ductile iron, DN50 represents valve inner diameter
D943H-16C-DN100-Electric Hard Seal Butterfly Valve
D represents butterfly valve, 9 represents electric, 4 represents flange type, 3 represents triple eccentric, H represents stainless steel, 16 represents nominal pressure, C represents carbon steel, DN100 represents valve inner diameter
Accessories and Additional Codes
Butterfly valve accessories and additional features enhance functionality:
- B – Insulation
- H – Check function
- S – With expansion
- TL – Desulfurization
- G – High temperature
Electric Butterfly Valve Models Overview
The diverse range of electric butterfly valve models caters to various applications:
Soft-Sealed Electric Butterfly Valves
- D971X
- D971F
- D971J
Hard-Sealed Electric Butterfly Valves
- D973H
- D973W
- D973F
- D973Y
Specialized Electric Butterfly Valves
- For Expansion: SD941X, SD943H, SD943W
- Explosion-Proof: BD943H, BD973H, BD941X, BD971X
- Lined with Fluorine: D941F46, 971F4, BD941F46, B971F4
- For Ventilation: D941W
Conclusion
Above the complete model description of China electric butterfly valve, THINKTANK engineers have meticulously organized models such as electric regulating butterfly valves, explosion-proof electric butterfly valves, electric soft-sealed butterfly valves, and electric hard-sealed butterfly valves for efficient selection. Should you have any questions, just feel free to contact THINKTANK’s experts to help you sizing or selection the right electric butterfly valves for your application.
Complete list of electric butterfly valve models
- Electric wafer-type soft seal butterfly valve model: D971X, D971F, D971J
- Electric flange type soft seal butterfly valve model: D941X, D941F, D941J
- Electric flange hard-sealed butterfly valve models: D973H, D973W, D973F, D973Y
- Electric wafer-type hard-seal butterfly valve models: D943H, D943W, D943F, D943Y
- Electric telescopic butterfly valve models: SD941X, SD943H, SD943W
- Electric explosion-proof control valve models: BD943H, BD973H, BD941X, BD971X
- Electric fluorine lined butterfly valve models: D941F46, 971F4, BD941F46, B971F4
- Electric ventilation butterfly valve model: D941W
