High-Performance Butterfly Valves are designed with a robust tungsten carbide coating on the inner lining, providing exceptional resistance to abrasive materials such as sludge, slag, iron dust, and sand particles that could otherwise cause rapid wear.

Our butterfly valves are available in flanged or wafer designs, adhering to international standards such as API 609, EN 558, and ISO 5752. The use of advanced materials and customized thicknesses beyond standard specifications ensures durability and reliability, verified through CAE simulations using finite element analysis. Tightness tests are performed according to EN 12266 or ISO 5208 standards.

Depending on the acidic content of the fluid, materials such as stainless steel and derivatives are carefully selected to ensure long-term functionality. In addition to standard steel and stainless materials, alternative materials can be requested to meet specific operational requirements.

HG-Stahl High-Performance Butterfly Valves are engineered to deliver superior performance and reliability, even in the harshest industrial conditions. These valves are crafted from materials with high chemical resistance, minimizing the damage caused by abrasive fluids and providing long-lasting usage.

These valves exhibit exceptional resistance to corrosive and abrasive fluids, ensuring durability and extended service life. With advanced engineering techniques and high-quality materials, these valves enhance energy efficiency and operational convenience.

Among the materials we offer to our solution partners are Titanium Alloys (Titanium Gr.2, Gr.3, Gr.5, Gr.6, Gr.7, Gr.12), Zirconium Alloys (Zirconium 702, 705), Bronze Alloys (C95800, C95500, C95400, C63200), Nickel Alloys (Inconel 600, 625; Hastelloy B, B-2, B3, C276, C-22, C-4, G; Incoloy 800, 800H, 825; Monel 400, K500; Nickel 200, 201), Duplex Stainless Alloys, Aluminum Bronze, and Ceramic Coated Butterfly Valves.

These valves are manufactured with metal-to-metal sealing as standard, while additional protective coatings can be applied to the valve’s exterior in special cases.

At HG-Stahl, we design and manufacture various types of butterfly valves, including Concentric Butterfly Valves, Double-Offset Butterfly Valves, Triple-Offset Butterfly Valves, Wafer-Style Butterfly Valves, Lug-Style Butterfly Valves, Double-Flanged Butterfly Valves, and Butt-Weld Butterfly Valves.

High-Performance Butterfly Valves with metal-to-metal sealing can withstand temperatures up to 600°C. Depending on the size, they can operate at a pressure class of up to 63 bar or Class 300. At HG-Stahl, we are also developing butterfly valves capable of withstanding pressures of up to 150 bar.