What is a Lined Wafer Butterfly Valve?A lined wafer butterfly valve features a valve body that is internally coated or fully lined with an elastomeric material such as EPDM, NBR, or PTFE. This lining serves as both the sealing mechanism and a protective barrier, ensuring that the metal body never comes into contact with the flowing media . The "wafer" design means the valve is installed between two pipe flanges and held in place by flange bolts, making it lightweight and cost-effective compared to lug-style or flanged alternatives .The main Butterfly Valve product names of China Butterfly Valve Network include:Flange Metal Sealed Swing Butterfly Valve,Groove Butterfly Valve,Hydraulic Control Butterfly Valve,Hydraulic Control Check Butterfly Valve,High Temperature Butterfly Valve,JIS Three Eccentric Hard-sealed Flange, Wafer Butterfly Valve,Lug Butterfly Valve,Manual Metal Hard-sealed Wafer Butterfly Valve,Manual Soft-sealed Wafer Butterfly Valve.

The 1.6MPa(PN16) pressure class is the most common rating for these valves, suitable for a wide range of water, wastewater, chemical, and light industrial applications . This pressure rating ensures reliable shut-off and regulation under standard operating conditions.

2026 Price Reference for Lined Wafer Butterfly Valve 1.6MPa

The market price for a lined wafer butterfly valve with a 1.6MPa rating is not a single fixed figure. It varies based on the valve's diameter, the lining material, the body material, and the brand. For general reference in 2026:For smaller diameters such as DN50, prices typically fall in the range of approximately $20 to $40 per unit for a standard manual model with a cast iron body and EPDM lining . This makes them an exceptionally cost-effective choice for general-purpose isolation.

For medium diameters like DN100, the price generally ranges from $50 to $85 per unit . This size is commonly used in main distribution lines in water treatment and building services.

For larger diameters such as DN200 and DN300, prices increase to the $110 to $210 and $250 to $420 ranges, respectively, reflecting the higher material and manufacturing costs .

It is important to note that these are reference prices from manufacturers. The final price you receive from a supplier will depend on your specific requirements, including the choice of lining material, valve body grade, quantity ordered, and any additional features like electric or pneumatic actuation .

Superior Corrosion Protection

The internal rubber lining completely isolates the metal valve body and disc from the process fluid. This is particularly crucial for applications involving:

Chemical processing and petrochemical systems where acids, alkalis, and solvents are present .

Seawater and brine handling, which are highly corrosive to standard carbon steel .

Wastewater and sewage systems**, which contain various corrosive and abrasive elements.

For extreme corrosive services, premium valves with PTFE or PFA linings are available. These offer near-universal chemical resistance and are often specified for semiconductor manufacturing, ultrapure water systems, and chlor-alkali processes .

Exceptional Wear Resistance

The elastomeric lining is not only corrosion-resistant but also highly resilient. It absorbs the impact of abrasive particles, suspended solids, and slurries that would quickly erode a metal seat. Common applications for wear resistance include:Mineral processing and mining, where slurries contain sand, ore, and other abrasive materials.

Pulp and paper manufacturing, where fibrous and abrasive slurries are common.

Flue gas desulfurization (FGD) systems in power plants, where limestone and gypsum slurries cause severe wear .

Additional Advantages of the Lined Wafer Design

Beyond corrosion and wear resistance, this valve type offers several other operational benefits:

Bubble-Tight Shut-Off: The resilient rubber seat provides a tight seal, ensuring zero leakage when closed, which is vital for safety and environmental compliance .

Low Torque Operation: The self-lubricating nature of rubber and the streamlined disc design result in lower operating torque, making manual operation easy and reducing the size and cost of actuators .

Lightweight and Compact: The wafer design is much lighter and takes up less space than flanged valves, reducing installation costs and pipe support requirements .

Bi-Directional Flow: Most lined wafer butterfly valves provide a reliable seal in both flow directions, simplifying system design .

As of 2026, the price for a lined wafer butterfly valve with a 1.6MPa pressure rating is highly competitive, with prices ranging from approximately $20 to over $420 depending on size and specifications . This price point, combined with its outstanding resistance to corrosion and wear, makes it the first-choice valve for a vast array of challenging applications in water, chemical, mining, and industrial sectors.

When selecting a valve, always confirm the specific media temperature, pressure, and chemical composition to choose the correct lining material. For the most accurate and up-to-date pricing tailored to your project, contact manufacturers directly with your size, quantity, and technical requirements.

Do you still need to know or purchase the following Butterfly Valve products:

• Manual Metal Hard-sealed Wafer Butterfly Valve
• Manual Soft-sealed Wafer Butterfly Valve
• Manual Single Eccentric Wafer Butterfly Valve
• Manual Ventilation Butterfly Valve