This product introduces a two-shaft wafer butterfly valve featuring a ductile iron body, CF8 stainless steel disc, EPDM seat, and worm gear operator. The two-shaft design uses independent upper and lower stems, simplifying maintenance and reducing the risk of seizure. The worm gear provides effortless self-locking operation with visual position indication. Available DN50-DN600, PN10/PN16, suitable for water, HVAC, and general industrial services. Disc and seat materials are fully customizable for more aggressive media.
This wafer butterfly valve from Tianjin Worlds Valve Co., Ltd. combines a CF8 (ASTM A351 Grade CF8) stainless steel disc with an NBR rubber seat, built into a ductile iron (GGG40) wafer body. The standard NBR seat performs well in oil, fuel, aliphatic hydrocarbon, and mild chemical media. Beyond this baseline configuration, all major components are fully customizable: disc materials include CF8, CF8M, Duplex 2205, Super Duplex 2507, and Aluminum Bronze; seat materials include EPDM, Viton (FKM), and PTFE. The product covers DN50–DN3000, fits PN10/PN16/Class 150 pipelines, and conforms to ISO 5752 face-to-face dimensions. Suitable for water treatment, oil handling, HVAC, food processing, and general industrial services.
This product describes a lug butterfly valve featuring a CF8M (AISI 316) stainless steel body and disc, operated by a manual hand lever. The lug design allows dead-end-service – the valve can be installed at pipeline ends without a downstream flange. Available with replaceable seats (EPDM, NBR, FKM, PTFE) for various media. Sizes DN50-DN2000 with customizable pressure ratings (PN10, PN16, Class 150) and flange standards (EN 1092, ANSI B16.5, etc.). Suitable for seawater, chemical processing, high‑purity water, and corrosive industrial applications. Fully customizable as an OEM product from Tianjin Worlds Valve Co., Ltd.
