This 20-inch (DN500) lug butterfly valve from Tianjin Worlds Valve Co., Ltd. features a ductile iron body and disc, EPDM seat, and worm gear operator. The lug design enables bi-directional dead-end service at full rated pressure, ideal for large-diameter isolation points and maintenance shut-offs. The EPDM seat provides bubble-tight sealing for water, treated water, and mild chemical services from -20°C to +120°C. The worm gear delivers smooth, self-locking manual operation with an ISO 5211 top flange for actuator mounting. Rated PN10/PN16/Class 150. Fully customizable materials and actuation. Manufactured by an ISO 9001 certified OEM supplier with CE, UKCA, WRAS, ACS certifications available.

Lug butterfly valve with ductile iron body, CF8M disc, and field-replaceable soft EPDM seat. Dead-end service capable. Sizes DN50‑DN600, PN10/PN16/Class 150. Easy maintenance, corrosion resistant. OEM customizable. ISO 9001 certified.

This lug butterfly valve features a CF8 stainless steel body and polished disc, PTFE seat, and pin-secured stem. The polished disc reduces torque and prevents media buildup. PTFE seat provides chemical resistance and bubble-tight shut-off. Lug body allows dead-end service. Size range DN50-DN1200, pressure PN10/PN16/Class 150. Ideal for chemical, food, and high-purity applications. OEM customizable, ISO 9001 certified. Manufactured by Tianjin Worlds Valve Co., Ltd.

This comprehensive guide explains how to select a wafer butterfly valve based on pipeline size, flow rate, pressure rating, temperature, and media compatibility. It covers key features (compact design, 90° operation, low pressure drop), material selection for body/disc (ductile iron, stainless steel, aluminum bronze, duplex) and seat (EPDM, NBR, Viton, PTFE), plus installation best practices and maintenance tips. The article highlights Tianjin Worlds Valve Co., Ltd. as a reliable OEM/ODM manufacturer offering full customization, international certifications (ISO 9001, CE, UKCA, WRAS, ACS), and factory‑direct support for water, chemical, HVAC, marine, and industrial applications.

This DN300 double eccentric flanged butterfly valve features a ductile iron body and disc with an electric actuator for automated on/off control. The double offset design reduces wear and operating torque, extending seat life. Ideal for water, wastewater, and industrial applications. Fully customizable. ISO 9001 certified OEM manufacturer.

This article compares wafer butterfly valves with traditional gate and globe valves, focusing on installation space, operation speed, cost, and maintenance. It highlights the advantages of wafer designs – compact, lightweight, low pressure drop, and automation‑ready. Tianjin Worlds Valve Co., Ltd. is presented as a reliable OEM/ODM manufacturer offering full material customization, replaceable soft seats, and international certifications (ISO 9001, CE, UKCA, WRAS, ACS, DNV/ABS). The guide helps engineers select the right valve based on media, temperature, pressure, and frequency of operation, with practical tips on seat and body materials.

This 14” double flanged butterfly valve features a WCB body, CF8 disc, vulcanized Viton (FKM) seat, and SS304 stem, rated Class 150LB. The permanently bonded Viton seat provides excellent resistance to oils, fuels, acids, and high temperatures up to 200°C. Ideal for chemical processing, oil & gas, and high-temperature industrial applications. Manufactured by an ISO 9001 certified OEM supplier.

This article explains how wafer butterfly valves work and their key advantages: space-saving compact structure, lightweight handling, low cost, fast quarter-turn operation, good sealing, and smooth flow control. It also covers material selection and how to choose the right valve from Tianjin Worlds Valve.

This 2” double flanged butterfly valve from Tianjin Worlds Valve combines a 1.4462 super duplex disc, vulcanized EPDM seat, and ductile iron body with customizable epoxy coating (any RAL). The non-replaceable seat ensures leak-proof sealing, while the super duplex disc provides twice the strength and superior chloride resistance for seawater and chemical applications. Hand lever operated, PN10/PN16/Class 150, fully customizable. ISO 9001 certified OEM.

This 5″ pneumatic wafer butterfly valve features a CF8M stainless steel body and disc, PTFE seat, and split body construction for easy maintenance. Equipped with a double-acting actuator and limit switch for remote position feedback. Rated PN10, temperature range -35°C to +200°C. Suitable for corrosive media including acids, alkalis, and solvents. Fully customizable materials, actuator, and accessories. Manufactured by Tianjin Worlds Valve Co., Ltd., an ISO 9001 certified OEM/ODM supplier offering CE, UKCA, WRAS, and ACS certifications.