Butterfly valve

Product Introduction

A Butterfly Valve is a quarter-turn rotational valve that regulates, starts, and stops fluid flow by rotating a disk-shaped closure element around a central stem, offering compact design, lightweight construction, and low pressure drop for a wide range of industrial applications. Manufactured from high-grade cast steel, stainless steel, or ductile iron and reinforced with a precision-applied Tungsten Carbide Coating on the disk sealing edge and seat contact surfaces, this valve delivers exceptional abrasion resistance, corrosion protection, and long-term sealing performance under demanding operating conditions. The Tungsten Carbide Coating forms an ultra-hard, metallurgically bonded layer that resists wear from abrasive slurries, powders, and particulate-laden fluids, preventing seat leakage and extending valve service life for process industries worldwide.

Applications

The Butterfly Valve with Tungsten Carbide Coating is widely used across global industries including mining and mineral processing, power generation, chemical processing, oil and gas, water and wastewater treatment, pulp and paper, cement and construction, food and beverage, and pharmaceutical manufacturing. It is particularly suited for handling abrasive slurries, fly ash, coal dust, mineral concentrates, chemical powders, sludge, and particulate-laden fluids in pipelines where conventional soft-seated or uncoated valves suffer rapid wear and premature failure.

Specifications

Advantages

The Butterfly Valve with Tungsten Carbide Coating delivers significant advantages for industrial process operators around the world. First, the Tungsten Carbide Coating provides outstanding abrasion resistance on the disk sealing edge and seat contact surfaces, lasting up to five times longer than standard stainless steel or chrome-plated valves when handling abrasive slurries, fly ash, mineral concentrates, coal dust, and particulate-laden fluids, significantly reducing replacement frequency and unplanned downtime. Second, the hard, smooth carbide sealing surface ensures tight shutoff and zero leakage over extended operation, preventing product loss, environmental contamination, and process inefficiency caused by seat wear and erosion. Third, the corrosion-resistant carbide layer protects the valve internals from acids, alkalis, and aggressive chemical media, expanding the range of fluids that can be safely controlled without valve degradation or material compatibility issues. Fourth, the compact wafer and lug designs save installation space and weight compared to gate or globe valves, while the quarter-turn operation enables fast, reliable actuation with minimal torque, reducing actuator size and energy consumption. Fifth, the valve supports customizable options including double or triple offset designs, various actuation methods, fire-safe configurations, and multiple connection standards to fit all major pipeline systems and process requirements. Finally, by extending service life, reducing maintenance and replacement costs, ensuring reliable sealing performance, and improving overall process efficiency, the Butterfly Valve with Tungsten Carbide Coating delivers a strong return on investment for customers in every major global market.

Butterfly Valve FAQ

Q1: What industries and fluids use a coated Butterfly Valve? A: The valve is used in mining, power generation, chemical processing, oil and gas, water treatment, pulp and paper, and cement industries to handle abrasive slurries, fly ash, coal dust, mineral concentrates, sludge, and chemical powders.

Q2: Why is Tungsten Carbide Coating applied to the Butterfly Valve? A: The coating is applied to the disk sealing edge and seat contact surfaces to provide superior abrasion resistance, lasting up to five times longer than standard valves and ensuring tight shutoff without seat leakage.

Q3: What sizes and pressure ratings are available? A: Nominal diameters range from DN50 to DN1200 (2 inch to 48 inch) with pressure ratings from PN10 to PN40 (Class 150 to Class 300), supporting operating temperatures from -20C to 500C.

Q4: What actuation and connection options are available? A: Options include manual, pneumatic, electric, and hydraulic actuation, with wafer, lug, and flanged connection types, plus double or triple offset designs and fire-safe configurations to fit all major pipeline systems.