E-mail: info@slv-cn.com       Tel: +86-189-0515-4687
Choosing the Right Butterfly Valve Seat Material for Long-Term Performance
You are here: Home » News » Industry News » Choosing the Right Butterfly Valve Seat Material for Long-Term Performance

Choosing the Right Butterfly Valve Seat Material for Long-Term Performance

Views: 13     Author: Site Editor     Publish Time: 2025-09-25      Origin: Site

Inquire

facebook sharing button
twitter sharing button
line sharing button
wechat sharing button
linkedin sharing button
pinterest sharing button
whatsapp sharing button
kakao sharing button
sharethis sharing button

In our last article, we introduced the most common butterfly valve body materials and how they affect strength and durability. But the body is only half the story.


Valve SeatWhen it comes to sealing performance and service life, the valve seat (sealing ring) is just as critical. The seat material determines chemical resistance, temperature limits, wear resistance, and ultimately how long the valve will perform reliably in your system.


Here's a breakdown of the most widely used butterfly valve seat materials and their key properties:


| EPDM (Ethylene Propylene Diene Monomer) - The most widely used butterfly valve seat

ICON2  Features: Excellent acid resistance, safe and non-toxic, cost-effective, widely applied in potable water systems.

ICON2  Applications: Drinking water, wastewater, HVAC, low-temperature pipelines.

ICON2  Common Valve Types: Centerline soft-seated wafer and lug butterfly valves.


| NBR (Nitrile Rubber / Buna-N) – Reliable for oil and fuel service

ICON2  Features: Outstanding oil and fuel resistance, good abrasion resistance, and strong performance with petroleum-based media such as fuels and natural gas.

ICON2  Applications: Oil, fuel, gas pipelines, compressed air systems.

ICON2  Common Valve Types: Wafer and lug butterfly valves used in fuel and gas service.


| FKM / Viton / FBR (Fluoroelastomer) – For harsh chemical and high-temperature service

ICON2 Features: Exceptional resistance to strong acids, alkalis, and solvents; withstands temperatures up to 180°C; long service life under demanding chemical conditions.

ICON2 Applications: Chemical processing, pharmaceuticals, corrosive industrial fluids.

ICON2 Common Valve Types: High-performance double-eccentric and triple-eccentric butterfly valves.


| Silicone / VMQ / SI (Silicone Rubber) – Hygienic and flexible choice

ICON2 Features: Wide operating temperature range (-60°C to 200°C), excellent elasticity, available in food-grade options for sanitary use.

ICON2 Applications: Food & beverage, pharmaceuticals, cosmetics, clean steam systems.

ICON2 Common Valve Types: Sanitary clamp butterfly valves, hygienic process valves.
Pneumatic Sanitary Stainless Steel Butterfly Valve Sanitary Stainless Steel Pneumatic Butterfly Valve


| PTFE (Polytetrafluoroethylene / Teflon) – Best for highly corrosive media

ICON2 Features: Wide operating temperature range (-60°C to 200°C), excellent elasticity, available in food-grade options for sanitary use.

ICON2 Applications: Chemical plants, wastewater treatment, pipelines carrying corrosive fluids.

ICON2 Common Valve Types: Lined butterfly valves, high-performance chemical service valves.

 Electric Lined Fluorine Butterfly Valve     Pneumatic Lined Fluorine Butterfly Valve



| Metal Seat (Stainless Steel / Alloy) – Designed for extreme operating conditions

ICON2 Features: Capable of withstanding very high temperatures, abrasive media, and severe service conditions where soft seats fail. Performance depends on the specific alloy used.

ICON2 Applications: Steam pipelines, high-temperature gas systems, heavy-duty industrial service.

ICON2 Common Valve Types: Triple-eccentric butterfly valves, high-performance metal-seated valves.

Triple Offset Butterfly Valve with Electric ActuatorElectric Triple Offset Butterfly Valve


Seat Material Key Features Applications
EPDM Acid resistant, non-toxic, cost-effective Drinking water, HVAC, wastewater
NBR Oil and abrasion resistance Oil, fuel, gas, compressed air
FKM / Viton Chemical resistance, heat resistant to 180°C Chemicals, pharmaceuticals
Silicone (VMQ / SI) Wide temp range, flexible, food-grade available Food & beverage, pharma, clean steam
PTFE (Teflon) Superior corrosion resistance, solvent-proof Chemical plants, corrosive pipelines
Metal Seat Withstands high temp & abrasive media Steam, high-temp gas, heavy industry


Choosing the right butterfly valve seat material is key to ensuring sealing reliability, service life, and cost-effectiveness.


At SLVCN, with over 30 years of valve manufacturing experience, we help global buyers select the most suitable seat material for their specific operating conditions. And if your project requires something unique, we can also customize butterfly valves with specialized seat options to meet your exact needs.

Leave a Message
Contact Us
  Tel: +86-189-0515-4687
            +86-180-6165-9285
  Phone: +86-25-5885-5535
  E-mail: info@slv-cn.com
  Address: No.22, Liuzhou North Road, Pukou District, Nanjing, Jiangsu, China

Quick Links

Product Category

Product Category

Copryright © 2024 Jiangsu Shoulong Valve Co., Ltd. All Rights Reserved. Sitemap. Support by hnjingdian.cn. Privacy Policy