This article provides a material selection guide for 18-inch wafer butterfly valves used in water and wastewater systems. It explains why a ductile iron body, CF8M stainless steel disc, and EPDM seat form a balanced configuration for large-diameter water service. Key topics include material properties, installation best practices, common pitfalls, and maintenance tips. The article concludes with guidance on matching materials to specific applications and introduces Tianjin Worlds Valve as an OEM manufacturer capable of customizing valves to project requirements.
This article explains why a grooved end butterfly valve with hand lever, ductile iron body, and EPDM seat is a practical choice for water distribution, HVAC, and light industrial systems. It covers the benefits of grooved connections under AWWA C606, the simplicity of hand lever operation, and why DI and EPDM suit water service. Installation best practices, maintenance tips, and common pitfalls are included. The article concludes with an introduction to Tianjin Worlds Valve as an OEM manufacturer capable of customizing valves to any size or specification.
This article introduces double flanged butterfly valves – the heaviest, most rigid butterfly valve design with integral flanges on both ends for bolted pipeline connections. Self-supporting and capable of handling high pressures (PN16–PN40) and large diameters (DN50–DN2000+), these valves are ideal for water supply, wastewater, chemical processing, power generation, and oil and gas applications. As an LRQA-certified ISO 9001:2015 OEM/ODM manufacturer with over 15 years of export experience, Tianjin Worlds Valve Co., Ltd. offers fully customizable solutions to meet specific project requirements.
