UPVC Plastic Butterfly Valve DN40 Price – Specialized for Acid and Alkali Resistant Piping
Whether you are managing a chemical processing plant, a water treatment facility, or an electroplating line, understanding the current pricing and selection parameters of this valve is essential for informed procurement decisions.The main Butterfly Valve product names of China Butterfly Valve Network include:Electric Desulfurization Wafer Butterfly Valve,Electric Desulfurization Flange Butterfly Valve,Fire Signal Butterfly Valve,Flange Soft-sealed Butterfly Valve,Flange Insulation Butterfly Valve,Flange Ceramic Hard-sealed Butterfly Valve,Flange Metal Sealed Swing Butterfly Valve,Groove Butterfly Valve.
2026 Price Reference for UPVC Plastic Butterfly Valve DN40
As of 2026, the market price for a UPVC plastic butterfly valve DN40 typically falls within the range of approximately 80 to 300 RMB per unit. This broad range reflects the various configurations, brand options, and additional features available in the market.
For a standard manual hand-lever operated model with a wafer-type connection and EPDM or NBR seat, prices generally start at the lower end of this spectrum. These basic models are suitable for general-purpose corrosive fluid applications and offer excellent value for money. For worm-gear operated versions or models with PTFE (Teflon) seals, prices tend to be higher due to the enhanced sealing performance and temperature resistance. The most expensive configurations in this range are those equipped with electric or pneumatic actuators, which add significant cost but enable remote and automated operation.
Why UPVC is the Material of Choice for Acid and Alkali Pipelines
UPVC (unplasticized polyvinyl chloride) offers a unique set of properties that make it exceptionally well-suited for corrosive fluid handling. Unlike metal valves, which are susceptible to rust, pitting, and chemical attack, UPVC provides outstanding resistance to a wide range of acids, alkalis, salt solutions, and organic solvents. Common media that UPVC butterfly valves can handle include sulfuric acid, hydrochloric acid, phosphoric acid, chlorine solutions, and strong alkalis.
Compared to traditional metal valves, UPVC butterfly valves offer several compelling advantages:
Lightweight construction – UPVC valves weigh approximately one-fifth of steel pipes and one-sixth of copper pipes, significantly reducing installation labor and support structure requirements.Corrosion and rust resistance – The material does not corrode or rust, ensuring a longer service life in aggressive environments.Smooth internal surface – The extremely smooth bore of UPVC minimizes fluid resistance and prevents sediment buildup, maintaining excellent flow characteristics.Hygienic and non-toxic – UPVC is tasteless, odorless, and complies with drinking water standards, making it suitable for potable water systems as well.Low thermal conductivity – With thermal conductivity approximately 1/200 that of steel, UPVC valves help maintain process temperatures and reduce energy loss.Easy maintenance – The simple construction allows for quick disassembly and maintenance without specialized tools.
Key Selection Parameters for DN40 UPVC Butterfly Valves
When specifying a UPVC plastic butterfly valve DN40 for your acid or alkali piping system, several critical parameters must be considered to ensure proper selection and long-term reliability.
Pressure Rating and Temperature Limits
The standard pressure rating for UPVC butterfly valves in the DN40 size is typically PN10 (1.0 MPa) , with some models available up to PN16 (1.6 MPa) . It is essential to match the valve's pressure rating to your system's maximum operating pressure, including any transient surges such as water hammer.
Temperature is a critical limiting factor for UPVC materials. The general applicable temperature range for UPVC butterfly valves is 0°C to 60°C. However, some manufacturers offer extended ranges from -25°C to +135°C depending on the specific material formulation and sealing components. For applications exceeding these temperature limits, alternative materials such as CPVC (up to 90°C), PPH (up to 120°C), or PVDF (up to 150°C) should be considered.
Connection Type and Installation
DN40 UPVC butterfly valves are typically available in wafer-type (installed between two flanges) or **lug-type** configurations. The wafer design is the most common and cost-effective for this size. Connection standards include DIN PN10/PN16, ANSI Class 150, and JIS 10K. Always verify that the valve's flange drilling matches your existing pipeline flanges to ensure a leak-free installation.
Actuation Options
UPVC butterfly valves DN40 can be operated through various actuation methods:
Manual lever handle – The most economical option for infrequent operation and straightforward on/off control.Worm-gear operator – Provides smoother operation and self-locking capability, ideal for larger torques or frequent operation.Electric actuator – Enables remote on/off control and modulating flow regulation with 4-20mA signal input.Pneumatic actuator – Suitable for explosion-proof environments and applications requiring rapid response.rers or authorized distributors with your detailed specifications and quantity needs.The UPVC plastic butterfly valve DN40 represents an excellent solution for acid and alkali resistant piping systems, offering outstanding corrosion resistance, lightweight construction, and cost-effective operation. As of 2026, prices range from approximately 80 to 300 RMB per unit, with the final cost determined by brand, sealing material, actuation type, and order quantity. When selecting this valve, pay careful attention to pressure ratings (PN10-PN16), temperature limits (typically 0°C to 60°C), sealing material compatibility (EPDM, NBR, PTFE, or Viton), and connection standards to ensure a perfect match for your application. For the most competitive pricing and expert guidance, contact manufacturers directly with your complete technical specifications.
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