Applications of Hard-Sealed Butterfly Valve

Thanks to their simple structure, ease of operation, and excellent sealing performance, hard-sealed butterfly valves have become essential fluid control equipment in harsh environments involving high temperatures, high pressures, and corrosive media. This article focuses on their widespread application in industrial sectors such as chemicals (precision control, corrosion resistance), oil and gas (high-pressure, high-temperature transportation and processing), as well as power generation, metallurgy, and papermaking (regulating media such as water, steam, gas, and pulp). These valves meet stringent requirements for stability and reliability, effectively enhancing production efficiency and safety.

What Is the Price Difference between Soft-Sealed and Hard-Sealed Butterfly Valve

This article analyzes the price differences and key distinctions between soft-sealed and hard-sealed butterfly valves. Hard-sealed butterfly valves are typically more expensive than soft-sealed ones; for sizes below DN300, the price difference is approximately 100–900 yuan (depending on the model). Key differences include: soft-sealed (rubber/polyurethane material, offering excellent sealing performance but a short service life, suitable for conventional media such as water and air); and hard-sealed (metal material, resistant to high temperatures and pressures with a long service life, suitable for harsh environments such as chemical and petroleum industries). Selection must be based on engineering requirements and media characteristics to ensure system safety and efficiency.

A Detailed Description of the Operating Environments and Characteristics of Hard-Sealed Butterfly Valve

Thanks to their exceptional adaptability, hard-sealed butterfly valves are widely used in a variety of demanding industrial environments. They reliably withstand extreme temperatures (ranging from high-temperature steam at several hundred degrees Celsius to low temperatures in cold regions), accommodate a wide range of pressure levels (from low- and medium-pressure water supply and drainage systems to high-pressure chemical processes), and are compatible with diverse media (including gases, liquids, mildly corrosive solutions, and materials containing solid particles), ensuring the sealing integrity and operational stability of piping systems under all operating conditions.

304 Stainless Steel Hard-Sealed Wafer-Type Butterfly Valve D373W-16P

Cast Steel Hard-Sealed Wafer-Type Butterfly Valve D373H-16C

304 Stainless Steel Hard-Sealed Flanged Butterfly Valve D343W-16P

Cast Steel Hard-Sealed Flanged Butterfly Valve D343H-16C