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You should understand your needs before picking an electric butterfly valve. Every job has different requirements. Sunlike Machinery is known for giving dependable solutions and certified products. You can rely on their knowledge of butterfly valve technology in many fields. Choosing the right valve begins with knowing what you need and having expert help.

Key Takeaways

• Know what your job needs before picking an electric butterfly valve. This helps you get a valve that works for your job.

• Always look at the valve size and if it fits your pipe. A good fit stops leaks and keeps things working well.

• Think about what the valve is made of for your media type. The right material keeps it safe from rust and damage.

• Take care of your valve often to make it last longer. Plan times to check and clean it so your system stays safe and works well.

• Talk to experts like Sunlike Machinery for advice that fits you. Their help can guide you to make smart choices for your work.

Define application needs

You need to know your job before picking an electric butterfly valve. Each job is different and needs special things. Sunlike Machinery has helped many people in big factories. They work in places like chemical plants, mines, and cement factories. Their team learned that checking your system first helps the valve last longer and work better.

Media type and properties

First, find out what kind of stuff goes through your system. It could be liquid, gas, or a mix called slurry. In chemical plants, you might use things that can eat away metal or scratch it. The stuff’s heat, thickness, and what it’s made of matter a lot. Some chemicals need special parts so they don’t rust. If your stuff has rough bits, you need a strong valve. Always pick a valve that matches what goes through it. This helps stop leaks and breaks.

Pressure and flow

You have to know how much pressure and flow your job needs. Butterfly valves help control flow in many jobs. Knowing how the flow works helps you pick the best valve. Some valves let you control flow very well, even when it’s low. Think about these things:

• Find out the highest pressure drop your job allows.

• Sometimes, the valve can be smaller than the pipe to save money.

• In steam jobs, pressure drop is very important.

• The disc shape and how you open the valve change how it works.

If you work with chemicals, pressure changes can hurt the valve. Always pick a valve that fits your pressure and flow needs.

Installation environment

Where you put the valve matters for how long it lasts. You should look at these things:

• Heat or cold: Very hot or cold can hurt the valve.

• Wet air: Too much water in the air can make parts rust.

• Chemicals: Bad chemicals can make the valve weak.

• Dust: Dust or rough bits can wear out the valve.

• Shaking: Lots of shaking can make parts come loose.

• Pressure changes: Fast changes can break the valve.

Sunlike Machinery makes valves for hard jobs in big factories. Their tested products help you handle tough places and keep your system working well.

Electric butterfly valve selection criteria

Picking the right electric butterfly valve means looking at a few things. You need to match the valve size, material, and actuator to your system. You also need to check certifications and what the maker says. This helps you get good safety and performance. Sunlike Machinery has lots of experience in tough jobs like chemical plants and mines. They help you make smart choices for your work.

Valve size and compatibility

You must choose a butterfly valve that fits your pipe. The size changes how well your system works. If you pick the wrong size, you might use too much energy. You could hear loud noises or even break something. Here is a table that shows common sizes for different butterfly valves:

Type of Butterfly Valve	Size Range (inches)
Wafer Butterfly Valve	2 to 24
Lug Butterfly Valve	2 to 24
Concentric Butterfly Valve	2 to 12
Single Offset Butterfly Valve	4 to 24
Double Offset Butterfly Valve	6 to 48
Triple Offset Butterfly Valve	6 to 48
Flanged Butterfly Valve	4 to 72
Plastic Butterfly Valve	1 to 12
Stainless Steel Butterfly Valve	2 to 36

Tip: Always check your pipe size before picking a butterfly valve. This helps stop leaks and keeps your system working well.

A good fit gives you these benefits:

• You keep the right flow and pressure.

• You save energy and money.

• You lower noise and shaking.

• You stop pressure drops and system problems.

Sunlike Machinery can help you pick the right valve size for your pipe. This gives you better safety and performance.

Material choices

The material of your butterfly valve is important, especially for chemical jobs. You need to pick a material that can handle what goes through your system. Some jobs need special linings for strong acids or high heat. Here is a table to help you compare materials for electric butterfly valves:

Type of Valve	Features
Centerline Fluorine-Lined Butterfly Valve	Simple design, seals well, good for low pressure and room temperature chemicals.
Double Eccentric Fluorine-Lined Butterfly Valve	Less rubbing, lasts longer, good for medium-low pressure.
Triple Eccentric Fluorine-Lined Butterfly Valve	Handles high heat and pressure, best for hard jobs.

You should also think about:

• Temperature range: PTFE linings can handle up to 200°C.

• Pressure rating: Most fluorine-lined valves work in PN6–PN16 pipes.

• Compatible media: These valves work with strong acids, alkalis, chlorine gas, brine, and other tough chemicals.

Sunlike Machinery has valves with strong linings and materials. This keeps your system safe and working well, even in hard chemical jobs.

Actuator and power supply

The actuator moves the butterfly valve. You need to pick an actuator that fits your needs for control, safety, and how well it works. Here is a table to help you compare important things:

Factor	Description
Power Source Options	Pick AC, DC, or solar power for different jobs.
Maintenance Requirements	Check how often you need to fix the actuator.
Spare Parts Availability	Make sure you can get parts and help from the maker.
Upgradability	See if you can upgrade the actuator later.
Lifecycle Cost Analysis	Look at the total cost, including energy and fixing.
Environmental Conditions	Think about heat, cold, dust, or chemicals in your work area.
Torque Requirements	Make sure the actuator can turn the valve easily.
Control Precision	Pick an actuator that gives you the control you need.
Advanced Features	Some actuators have smart features for better control and checking.

You should always check that the actuator fits your butterfly valve and your job. Sunlike Machinery gives you electric actuators that work well in many places. They last a long time and are easy to upgrade.

Control options

Control is important for safety and how well things work. Electric butterfly valves can connect to automation systems for remote control and checking. This helps you run your system safely and easily. Here are some control options you can use:

• You can open or close the valve from far away.

• Sensors tell you where the valve is for better control.

• Automation systems watch the valve and send alarms if something is wrong.

• You save money and time because you do not need to do as much by hand.

• Electric butterfly valves work well in automated systems, so many industries use them.

You can also connect your electric butterfly valve to SCADA systems. This gives you real-time data and helps you keep your system safe and working well.

Note: Sunlike Machinery’s electric butterfly valves support many control options. You can pick the best one for your job.

Certifications and manufacturer specifications

You should always check certifications and what the maker says before buying a butterfly valve. This keeps your system safe and working well. Here is a table of important standards:

Standard	Description
ASME BPVC	Rules for boiler and pressure vessel design and checking.
API 6D	Rules for steel valves in the oil industry.
DIN EN 12266	European rules for valve design and how well they work.
AWWA C509	Rules for valves in the water industry.
UL and CSA	Certifications for electric valves, showing they are safe.

You should also look for SIL Certification. This means the product meets strict safety rules for tough jobs.

Sunlike Machinery’s electric butterfly valves meet top industry standards. You can feel sure your system is safe and works well.

Match butterfly valve features

Sealing and leakage class

You need to look closely at sealing and leakage class when picking a butterfly valve. The right sealing keeps your system safe. It also stops leaks, which is very important in chemical plants or high-pressure jobs. Different rules say how much a valve can leak. You can see the main rules and leakage classes in this table:

Standard	Leakage Class	Description	Applications
ISO 5208	Rate A to G	Rate A gives the tightest seal for metallic valves.	High-pressure and high-temperature performance.
API 598	Resilient and Metal-seated	Zero leakage for soft-seated valves.	Oil and gas industry testing.
ANSI/FCI 70-2	Class I to VI	Class VI allows only a tiny amount of leakage.	Critical processes needing high shut-off tightness.
EN 12266-1	Various	Matches ISO 5208 but with some differences.	Common in European industries.

A strong sealing system works well in hot or cold places. It keeps the seal tight even if the temperature changes fast. Double eccentric and triple-offset butterfly valves have special shapes to keep the seal strong. The triple-offset design uses a cone shape for sealing. This shape stops the seal from wearing out. It also keeps the seal tight in high-pressure or chemical jobs. You can trust these valves to stop leaks and keep you safe.

Tip: Always check the leakage class before you pick a butterfly valve. For high-pressure or safety jobs, choose a valve with a high sealing class. Sunlike Machinery sells certified valves that meet strict sealing rules. You can count on them for safe and steady work.

Durability and maintenance

You want your electric butterfly valve to last a long time and not break often. Good durability means you do not have to stop work much. It also saves you money. You can keep your valve working well by doing these things:

• Check and clean the valve often. This helps you find problems early and keeps it working.

• Put oil on moving parts. This makes them move easier and last longer.

• Look at the seals. Make sure they are tight so nothing leaks.

• Take care of the actuator. Check the wires and make sure everything lines up right.

Sunlike Machinery makes butterfly valves for hard jobs. Their valves use strong materials and smart designs. They last a long time, even in tough chemical or factory jobs. If you take care of your valve, it will keep your system safe and work its best.

Note: If you take care of your butterfly valve, you get better safety, better work, and less stopping.

Industry standards

You must follow industry standards to keep your system safe and legal. Standards make sure your butterfly valve works well in all jobs, like water, oil, or chemicals. Here are some important rules you should know:

• API 609 tells how to design butterfly valves for many jobs.

• AWWA C504 and C516 give rules for water and wastewater valves.

• NSF/ANSI 61 and 372 make sure valves are safe for drinking water and have no lead.

• API 607 and 6FA say valves must pass fire tests for safety jobs.

Sunlike Machinery’s electric butterfly valves meet these top rules. Their certified valves help you pass checks and keep your system safe. You can trust them to last long and keep you safe in all kinds of jobs.

Always check for certifications and rules before you put in a butterfly valve. This keeps your workers, your machines, and your business safe.

http://www.cn-sunlike.com
​Nantong Sunlike Machinery Co., Ltd.

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