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HomeNewsBlogsWhat Are Metal Seated Butterfly Valves and Their Key Features

What Are Metal Seated Butterfly Valves and Their Key Features

Date:2026-07-28     Click:62

A metal seated butterfly valve helps control how liquids or gases move. It does this by turning a disc inside a pipe. You often find this valve in places with high heat or tough conditions. These valves are used in steam systems, power plants, and mines. They can handle heat and rough use very well.

Advantages

Common Applications

Can work at higher temperatures

Used in steam systems

Resists wear and tear better

Used in refining processes

Works well in tough situations

Used in power generation

Lasts longer in rough places

Used in mining operations

You can count on TANGGONG VALVE for good butterfly valves. The company has certifications like ISO9001:2015, CE, TUV, and API 6D. These show they care about quality and safety. If you pick a metal seated butterfly valve, you get a strong product for hard jobs.

Key Takeaways

  • Metal seated butterfly valves help control liquids and gases well. They work best in places with high heat and tough conditions.

  • These valves last longer than soft-seated valves. They can work for 15 to 30 years. This makes them a smart choice for hard jobs.

  • They can handle temperatures over 600°C and high pressure. This means they work well in extreme places.

  • Pick metal seated butterfly valves for jobs with steam or corrosive materials. Use them when you need a strong shutoff.

  • Always think about what your system needs. Look at the fluid type and how it works. This helps you pick the right valve for your job.

Metal Seated Butterfly Valve Overview

Structure and Operation

A metal seated butterfly valve has a clever design. It helps control how liquids or gases move in hard places. The valve has a round disc inside the pipe. You can turn the disc with a handle or an actuator. The disc sits in the middle of the pipe and moves with the stem. This movement lets you start, stop, or change the flow.

Here is a table that lists the main parts of a metal seated butterfly valve and what each part does:

Component

Function

Material Used

Valve Body

Holds all the parts and gives strength

Stainless steel or alloy steel

Disc

Turns to open, close, or control flow

Hardened, high-strength materials

Seat

Makes a seal to stop leaks

Carbide or ceramic

Stem

Connects disc to actuator for turning

High-strength stainless steel

Packing Gland

Seals the gap between stem and body to stop leaks

Flexible graphite or PTFE

Actuator

Turns the disc by hand or by machine

Depends on use

TANGGONG VALVE makes each metal seated butterfly valve with strong materials. The company uses modern machines and checks quality carefully. These valves meet standards like API 609, CE, and ISO 9001:2015. These show TANGGONG VALVE cares about safety and quality.

Sealing Principle

A metal seated butterfly valve uses metal-to-metal contact to seal tight. The disc pushes against a hard seat to stop leaks. This works even when it gets very hot or has high pressure. Other valves use soft materials, like rubber, to seal. Metal contact gives better resistance to heat and wear. This valve lasts longer in tough places.

If you need a valve for high heat or hard jobs, a metal seated butterfly valve from TANGGONG VALVE is a good pick. You get a valve that works well and lasts a long time.

Key Features of Metal-Seated Butterfly Valves

Durability and Materials

Metal-seated butterfly valves are made to last a long time. They use strong metals that can handle tough jobs. These valves last longer than soft-seated butterfly valves. Soft-seated butterfly valves work for about 5 to 15 years. Metal-seated butterfly valves can last 15 to 30 years or more. This makes them a good choice for hard jobs.

Here is a table that lists the main materials used in metal-seated butterfly valves and what they do:

Material

Properties

Common Applications

Stainless Steel

High strength, corrosion resistance

Acidic fluids, wide temperature range

Carbon Steel

Good strength, cost-effective

High/low temperature, general use

Hastelloy

High temp strength, corrosion resistance

Oil, gas, power generation

Brass

Tough, antimicrobial

Water, food, pharmaceuticals

Nickel Alloys

Corrosion resistance, high temperature

Corrosive environments

Titanium Alloys

Strong, lightweight, corrosion resistance

Seawater, water treatment

Nickel Aluminum Bronze

Corrosion resistance, antimicrobial

Offshore, water purification

Inconel

Superior strength, corrosion resistance

Extreme conditions, metal seat construction

Stellite

Corrosion-resistant, long-lasting

Valve seats for durability

Nitriding

Hardens surfaces, wear resistance

Valve seat manufacturing

TANGGONG VALVE uses these strong materials in their valves. Their valves can handle harsh chemicals, high pressure, and rough places. The company follows strict rules like API 609, CE, and ISO 9001:2015. These show you get a safe and trusted product every time.

Temperature and Pressure Resistance

You need a valve that can handle heat and pressure. Metal-seated butterfly valves work well in very hot and high-pressure places. They can work at temperatures above 600°C. They are good for hard jobs where other valves might break.

Temperature Range

Pressure Range

Above 600°C

High-pressure applications

TANGGONG VALVE makes their valves to meet these hard needs. They use special seat designs, like double and triple offset. These help the valve shut tight even when it is hot or under pressure. These designs also lower friction and wear. Your valve will last longer and work better.

Tip: Always check the temperature and pressure ratings before you put in a valve. This helps you choose the right metal-seated butterfly valve for your job.

Typical Applications

Metal-seated butterfly valves are used in many industries. They are best when you need strong shutoff and long life. Here are some common uses:

  • Chemical processing

  • Power generation

  • High-temperature applications

  • High-pressure applications

  • Handling corrosive materials

TANGGONG VALVE gives these valves to oil and gas, petrochemical, energy, and marine companies. These valves help control flow in pipes, reactors, and tanks. You can use them where safety and trust are very important.

The newest valves from TANGGONG VALVE have double-offset and triple-offset designs. They use advanced materials like CF8M stainless steel and Duplex stainless steel. The triple-offset design stops leaks and is fire-safe. You get a small valve that saves space and needs less care.

International rules are important for how these valves work. Rules like API 609 and ISO 9001:2015 make sure your valve fits with other equipment and works safely. You will not have problems with putting it in and your system will run well.

If you need a valve for hard jobs, a metal-seated butterfly valve from TANGGONG VALVE gives you the shutoff and trust you need.

Metal-Seated Butterfly Valves vs. Other Types

Metal vs. Soft Seated

You might wonder how these two valves are different. The biggest difference is how they seal. Metal-seated valves use metal parts to make a tight seal. Soft-seated valves use things like rubber or PTFE to seal. This makes them work in different ways in your system.

Here is a table that shows the main differences:

Comparison Dimension

Soft-Seated Butterfly Valve

Metal-Seated Butterfly Valve

Sealing Type

Elastic seat (EPDM, NBR, PTFE, FKM)

Metal-to-metal or metal composite

Sealing Mechanism

Seat material deforms to seal

Metal contact creates the seal

Max Temperature

Up to 180°C

Up to 600°C

Pressure Rating

Up to Class 150

Up to Class 600

Opening/Closing Torque

Low

Higher

Wear During Operation

Seat always in contact

Contact only when closed

Suitable Media

Water, air, mild chemicals

Steam, high-temp, particles

Maintenance

Easy seat replacement

Longer intervals, complex repairs

Cost

Lower initial cost

Higher initial, lower lifecycle cost

Metal-seated butterfly valves are better for tough jobs. They can handle high heat, strong pressure, and hard fluids. Soft-seated valves are good for water, air, and gentle chemicals.

TANGGONG VALVE sells both kinds of valves. You can pick from many soft-seated or metal-seated butterfly valves. Each one meets strict rules like API 609 and ISO 9001:2015.

Advantages and Limitations

Metal-seated butterfly valves have many good points:

  • They can take high heat and lots of wear. You can use them where other valves break.

  • The seal stays strong even if the temperature changes.

  • They last a long time, even if you use them a lot.

  • They are made for hard jobs. You can use them in steam pipes and other tough places.

But there are some things to think about:

Limitation

Description

High Initial Cost

Precision parts and alloys make them more expensive

High Torque Needed

You may need a larger actuator

Minor Leakage

Small leakage can happen with metal seals

Note: Metal-seated butterfly valves need to be put in carefully. They work best when you need something strong that lasts a long time.

TANGGONG VALVE knows a lot about both kinds of valves. You get help and a valve that fits your job, no matter what you need.

Choosing Metal-Seated Butterfly Valves

Selection Criteria

When you pick a metal-seated butterfly valve, you need to think about a few things. First, look at what kind of fluid or gas is in your pipes. If you have steam, hot liquids, or stuff with solid bits, a metal-seated valve is a good choice. You should also check how hot and how much pressure is in your system. Metal-seated valves can take more heat and pressure than resilient-seated butterfly valves.

Here is a table to help you compare important selection criteria:

Selection Criteria

Description

Media Type

Use metal-seated for steam, hot fluids, or solids.

Temperature and Pressure

Pick metal-seated for high heat or pressure.

Sealing Needs

Choose metal-seated if you accept minor leakage but want stable sealing.

Maintenance and Downtime

Use metal-seated when you want less maintenance and fewer shutdowns.

Operation Mode

Select metal-seated for frequent cycling or changing conditions.

You should also think about what the seat is made of. Metal seats are great for high heat, rough particles, or strong chemicals. If your job is not too hard, a resilient-seated butterfly valve works better for cool and clean fluids. For really tough jobs, you can get seats made from solid metal or layers of stainless steel and graphite. If you deal with strong or scratchy fluids, you can get the valve body made from special metals like Duplex Stainless Steel or Hastelloy.

TANGGONG VALVE gives you lots of choices. You can pick different seat materials, body types, and coatings. The company uses smart designs and checks every valve for quality. You will get a valve that works for your job, no matter where you use it.

Ideal Use Cases

Metal-seated butterfly valves are used in many places. They work best where resilient-seated butterfly valves do not last long. Here are some common ways people use them:

Application Type

Description

Steam and condensate systems

Handles high heat and pressure.

Power generation and refinery units

Works in extreme industrial conditions.

Chemical and petrochemical plants

Controls aggressive or dirty fluids.

High-temperature gas and slurry lines

Reduces wear and keeps a tight seal.

If you need a valve for water, air, or gentle chemicals, use a resilient-seated butterfly valve. For steam, hot gases, or rough slurries, pick a metal-seated valve. TANGGONG VALVE has helped people in over 35 countries. Their team helps you pick the right valve for your work. You get advice from experts who know the rules and hard jobs.

Tip: Always pick a valve that matches your system. This helps stop leaks, keeps your plant safe, and means less downtime.

 

You get lots of good things when you pick metal seated butterfly valves. The metal-to-metal seal keeps leaks away, even when it is very hot or under a lot of pressure. Self-lubricating bearings help the valve move smoothly and last longer. Wear-resistant alloy pads make the valve easy to use and help it work for many years. The triple eccentric design means you do not need much force to turn it, and it helps the valve last longer. Multi-layer seals let the valve work with many different liquids and gases.

TANGGONG VALVE butterfly valves are used in oil, gas, and power plants all over the world. Their valves follow tough safety and performance rules. You can count on TANGGONG VALVE for safe, trusted, and new valve solutions.

FAQ

What is the main benefit of a metal seated butterfly valve?

Metal seats are very strong. They do not wear out fast. They can take a lot of heat. You can use them where soft seats break. These valves last longer in hard places.

Can you use metal seated butterfly valves for steam?

Yes, you can use them for steam. Metal seats work well with hot steam. They can handle high pressure too. You get a good seal in steam pipes.

How do you choose the right seat material?

Tip: Look at what fluid you have and how hot it gets. Stainless steel works for most jobs. Inconel or Stellite are best for very hot or strong chemicals.

What certifications do TANGGONG VALVE butterfly valves have?

Certification

Purpose

ISO9001:2015

Quality management

API 609

Valve design standards

CE, TUV, SGS

Safety and compliance

These valves meet rules used around the world.

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