Butterfly valve seat materials play a critical role in sealing performance and service life. From EPDM and NBR to PTFE, FKM/Viton, Silicone, and Metal seats, each material offers unique advantages in chemical resistance, temperature limits, and applications. This article explains the features of each seat type and provides a quick selection guide to help buyers choose the right butterfly valve seat material for water, oil, gas, food, and chemical pipelines.

Choosing the right butterfly valve body material is critical for performance and service life. This article explains the strengths and limitations of the most common materials — including cast iron (FC), ductile iron (FCD, GGG40, GGG50, DI), carbon steel (WCB, A105), stainless steel (CF8/CF8M), duplex stainless steel (2520, 2507), aluminum bronze, and plastics (PVC, CPVC, PVDF). We cover where each material fits best: from water and HVAC pipelines to chemical, marine, and high-temperature applications. A quick selection guide with corrosion resistance ratings helps buyers make faster, smarter decisions.

Choosing the right butterfly valve can be challenging — from water supply to chemical processing, each application requires a different solution. This buyer’s guide explains the main butterfly valve classifications: by function (water, sanitary 304L/316L, high-performance, corrosion-resistant, high-temperature, vacuum), by structure (concentric, double eccentric, triple eccentric), by connection (wafer, lug, flanged), and by operation (manual, electric, pneumatic). With over 30 years of valve manufacturing experience, we help buyers select the most reliable valve for their systems.

Butterfly valves are compact, cost-effective flow control solutions widely used in water treatment, wastewater, HVAC, and industrial pipelines. This guide explains the key parts of a butterfly valve – body, disc, seat, and stem – and how they work to regulate flow. It also compares manual, electric, and pneumatic operation methods, and provides selection tips for wafer, lug, and flanged types. With the right choice, butterfly valves ensure reliable performance across diverse applications.