Comprehensive Guide to China Electric Butterfly Valve Model - MTD Actuator Valve

This guide provides a thorough understanding of what China electric butterfly valve models signify. Electric butterfly valves are indispensable in industrial applications, offering a harmonious blend of automation, efficiency, and reliability. Comprising electric actuators and butterfly valves, they are lauded for their simple design, lightweight construction, long - lasting durability, easy installation, and maintenance - friendly nature. Moreover, they present a cost - effective solution without sacrificing quality or performance. Given their extensive use across a wide range of conditions, from high - temperature and high - pressure environments to corrosive settings and handling various fluids, understanding the nomenclature of China's electric butterfly valve models is crucial for accurate selection and utilization.

The Methodology Behind Electric Butterfly Valve Model

The model designation system for electric butterfly valves in China is based on national standards for valve selection and encompasses several key parameters:

• Butterfly Valve Code: D - Signifies a butterfly valve.

• Actuation Method: 9 - Denotes an electric actuator.

• Connection Type:

  • 4 - Flange Type. Ideal for applications where a more secure and widely - used connection is required, often in large - scale industrial pipelines.

  • 6 - Welding. Suitable for high - pressure and high - integrity systems where a leak - tight connection is crucial.

  • 7 - Wafer Type. Compact and lightweight, commonly used in applications where space is a constraint.

• Structural Design:

  • 1 - Center Line Structure. A basic and widely - used design for general - purpose applications.

  • 2 - Double Eccentric. Offers better sealing performance compared to the center - line structure, especially in applications where a tight seal is important.

  • 3 - Triple Eccentric. Provides an even more enhanced sealing effect, often used in high - pressure and high - temperature applications.

• Seat/Sealing Material:

  • H - Stainless Steel. Resistant to corrosion and suitable for a wide range of media, including high - temperature fluids.

  • W - Valve Body Processing. This indicates that the sealing is achieved through the processing of the valve body itself.

  • Y - Alloy. Offers high - performance sealing, especially in harsh environments.

  • X - Rubber. Provides a soft - seal, commonly used for low - pressure applications and with non - abrasive fluids.

  • J - Rubber Lining. Similar to rubber, but with the added advantage of lining for better protection and sealing in certain applications.

• Nominal Pressure:

  • 10 - Represents 10 Bars. A common pressure rating for many industrial applications.

  • 10K - Japanese Standard. Used in applications following Japanese industrial standards.

  • 150LB - American Standard. Applies to systems adhering to American pressure - rating standards.

• Valve Body Material:

  • Z - Gray Iron. Suitable for general - purpose applications where cost - effectiveness is a priority and the media is not highly corrosive.

  • Q - Ductile Iron QT450. Offers better mechanical properties than gray iron, often used in water, sewage, and liquid applications.

  • C - Carbon Steel WCB. Commonly used for oil, steam, and gas applications due to its strength and durability.

  • P - Stainless Steel 304. Resistant to corrosion, suitable for weakly corrosive gases and liquids, as well as high - temperature and high - pressure environments.

  • R - Stainless Steel 316. Similar to 304 but with enhanced corrosion resistance, especially in more aggressive environments.

  • I - Chromium Molybdenum Steel WC6/WC9. Ideal for high - temperature applications, such as in power plants.

• Nominal Diameter: DN40 - 2200mm or 2” - 60”. The size of the valve, which is crucial for ensuring proper flow rate and compatibility with the pipeline system.

These parameters, except for temperature and medium, are reflected in the model. It is essential to specify the operating medium and temperature during selection.

Key Selection Criteria for China Electric Butterfly Valve

Actuator Types

• Switch Type: Suitable for applications where a simple on - off operation is required.

• Modulating Type: Allows for precise control of the flow rate by adjusting the valve's opening degree.

• Intelligent Type: Incorporates advanced features such as self - diagnosis, remote monitoring, and communication capabilities.

• Explosion - Proof Type: Designed for use in hazardous environments where there is a risk of explosion, ensuring safety.

Valve Body Materials

Seat Material Suitability by Temperature and Pressure

Model Examples for China Electric Butterfly Valve

D971X - 10Q - DN50 - Electric Wafer Butterfly Valve

• D represents butterfly valve.

• 9 represents electric actuation.

• 7 represents the wafer - type connection.

• 1 represents the center - line structure.

• X represents the rubber sealing ring.

• 10 represents the nominal pressure.

• Q represents ductile iron valve body material.

• DN50 represents the valve inner diameter.

D943H - 16C - DN100 - Electric Hard Seal Butterfly Valve

• D represents butterfly valve.

• 9 represents electric actuation.

• 4 represents the flange - type connection.

• 3 represents the triple - eccentric structure.

• H represents the stainless - steel seat material.

• 16 represents the nominal pressure.

• C represents the carbon - steel valve body material.

• DN100 represents the valve inner diameter.

Accessories and Additional Codes

Butterfly valve accessories and additional features enhance functionality:

• B – Insulation. Useful in applications where temperature control of the valve or the medium is necessary.

• H – Check function. Prevents backflow, ensuring the one - way flow of media.

• S – With expansion. Allows the valve to accommodate thermal expansion or contraction in the pipeline system.

• TL – Desulfurization. Specifically designed for desulfurization processes in industries such as power generation.

• G – High temperature. Indicates that the valve is suitable for high - temperature applications.

Electric Butterfly Valve Models Overview

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

The above details provide a comprehensive model description of China electric butterfly valves. At MTD Actuator Valve, our engineers have carefully 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. If you have any questions, feel free to contact our experts. We can assist you in sizing and selecting the right electric butterfly valve 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