What is a butterfly valve?
Butterfly valve is a type of valve that uses a disc type opening and closing element to rotate back and forth about 90 degrees to open, close, or regulate the flow rate of the medium.
Butterfly valve, also known as flap valve, is a structurally simple regulating valve that can be used for on/off control of low-pressure pipeline media. Butterfly valve refers to a type of valve in which the closing element (valve disc or butterfly plate) is a disc that rotates around the valve axis to achieve opening and closing. Butterfly valves can be used for the flow of various types of fluids such as water, gas, and oil. It mainly plays a role in cutting off and throttling on pipelines. The butterfly valve opening and closing component is a disc-shaped butterfly plate that rotates around its own axis inside the valve body to achieve the purpose of opening, closing, or adjusting.
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![Brass Gas Valve Butterfly]()
Brass Gas Valve ButterflyProduct name : Brass gas valve butterflyview more
Working medium: water
Docking process:BSP/NPT female thread connection
Working temperature: 0°C≤ t ≤ 100°C
The pipeline complies with ISO45001, ISO14001, and ISO9001 standards -
![One Piece Butterfly Ball Valve]()
One Piece Butterfly Ball ValveWorking medium: waterview more
Docking process:BSP/NPT female thread connection
Working temperature: 0°C≤ t ≤ 80°C
The pipeline complies with ISO45001, ISO14001, and ISO9001 standards -
![Brass Butterfly Valve]()
Brass Butterfly ValveWorking medium: waterview more
Docking process:BSP/NPT female thread connection
Working temperature: 0°C≤ t ≤ 80°C
The pipeline complies with ISO45001, ISO14001, and ISO9001 standards -
![Ball Valve Butterfly Handle]()
Ball Valve Butterfly HandleWorking medium: waterview more
Docking process:BSP/NPT female thread connection
Working temperature: 0°C≤ t ≤ 80°C
The pipeline complies with ISO45001, ISO14001, and ISO9001 standards -
![Valve Butterfly Valve]()
Valve Butterfly ValveWorking medium: waterview more
Docking process:BSP/NPT female thread connection
Working temperature: 0°C≤ t ≤ 80°C
The pipeline complies with ISO45001, ISO14001, and ISO9001 standards -
![TEE Butterfly Valve]()
TEE Butterfly ValveProduct name : Nickel plated three-way brass butterfly valveview more
Working medium: water
Docking process:NPT/BSP threaded connection, sleeve connection, hot melt connection
Working temperature: 0°C≤ t ≤ 80°C
The... -
![Butterfly Stem PPR Articulated Ball Valve]()
Butterfly Stem PPR Articulated Ball ValveWorking medium: waterview more
Docking process:heat fusion connection
Working temperature: 0°C≤ t ≤ 80°C
The pipeline complies with ISO45001, ISO14001, and ISO9001 standards -
![Butterfly Handle Brass Ball Valve]()
Butterfly Handle Brass Ball ValveWorking medium: waterview more
Docking process:BSP/NPT female thread connection
Working temperature: 0°C≤ t ≤ 80°C
The pipeline complies with ISO45001, ISO14001, and ISO9001 standards
Your Professional Butterfly Valve Supplier！
Zhejiang Dunyun Industrial Co., Ltd. is located at No. 1 Dunyun Road, Modern Environmental Protection Equipment Industrial Park, Zhuji City, the hometown of Xi Shi, in the Yangtze River Delta Economic Circle.We mainly produce various copper valves such as "Dunyun" brand water supply systems, butterfly valve,central air conditioning systems, heating systems, gas systems, special ball valves, gate valves, globe valves, temperature control valves, gas valves, exhaust valves, filters, underfloor heating water collectors, as well as new aluminum-plastic composite pipes, and other plumbing accessories.
Rich ExperienceAs we are Actuated Valve Specialists with over 20+ years of experience in valve automation, we have the tools, products, and experience to make sure that your automated valve is durable and has a high life cycle.
Quality ControlAll inspections are handled by qualified, experienced personnel aligned with the specifications of each project to fully satisfy our customers and surpass their expectations with a high degree of environmental consciousness to the total satisfaction of our customers.
Our Certifications
We have passed ISO9001 quality management system certification，as well as various product hygiene licenses.
Product Specification
We provide the following product specifications
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Product Code: |
223 |
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Nominal pressure: |
1.6mpa |
| Working medium | water, gas, oil, etc |
| Working temperature | -20 ℃ ≤ t ≤ 100 ℃ |
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Threads comply with ISO228 standard |
The functional characteristics of butterfly valves
Simple structure
The butterfly valve has a relatively simple structure, mainly composed of valve body, disc, valve stem, and handle.
Small size and light weight
Butterfly valves have small external dimensions and short structural length, making them suitable for large-diameter valves.
Low fluid resistance
When fully open, the effective flow area of the valve seat channel is larger, resulting in lower fluid resistance.
Convenient and rapid opening and closing
The opening and closing component of the butterfly valve is a disc-shaped butterfly plate that rotates around the valve stem inside the valve body. Simply rotate 90 ° to fully open or close the butterfly valve.
Small opening and closing torque
Due to the equal effect of the medium on the butterfly plates on both sides of the shaft, the direction of torque generated is opposite, making opening and closing more effortless.
Good adjustment performance
By changing the deflection angle of the butterfly plate, the flow rate of the medium can be controlled, which has the characteristic of throttling.
The characteristics of brass material include excellent processability, corrosion resistance, conductivity, relatively high strength, and low price.
Brass is an alloy of copper and zinc. Due to the significant differences in the characteristics of brass caused by the amount of zinc added, some materials use names that represent the ratio of copper to zinc, such as 73 brass and 64 brass. The advantages of brass are excellent processability, corrosion resistance, conductivity, relatively high strength, and low price. In processing, it has excellent hot forging, ductility, rolling and mechanical processing properties, and is also easy to electroplate and weld.
Application of butterfly valve
Municipal and environmental protection fields
Water supply and drainage system: The various links of urban water supply/drainage pipelines and sewage treatment plants (such as settling tank inlet regulation and sludge transportation) need to be quickly opened and closed and leak proof.
HVAC: Central air conditioning water system flow regulation, ventilation duct air volume control, to improve system efficiency.
Industrial manufacturing field
Petrochemical industry: crude oil transportation, reactor inlet and outlet pipelines
Electricity: Circulating water in thermal power plants, cooling systems in nuclear power plants
Food and Beverage: Control of Fluid Transport, Steaming/Sterilization Processes in Production Lines
Certifications
Package & Delivery
Package: Standard export package or Custom
Delivery: By air express, by sea
FAQ
We're professional butterfly valve manufacturers and suppliers in China, specialized in providing high quality custom service. We warmly welcome you to wholesale cheap butterfly valve from our factory.
