This article introduces a 14-inch wafer butterfly valve featuring a ductile iron body, a replaceable EPDM seat for easy field maintenance, a CF8 stainless steel disc, and a turbo gear operator – rated at PN16. As an LRQA-certified ISO 9001:2015 OEM/ODM manufacturer with over 19 years of export experience, Tianjin Worlds Valve Co., Ltd. offers fully customizable solutions to meet specific project requirements.

This article introduces a 10-inch PTFE lined lug butterfly valve featuring a ductile iron body, a PTFE seat, and a PTFE-encapsulated ductile iron disc–rated at Class 150. With full PTFE encapsulation ensuring zero metal contact and bubble-tight sealing, this valve is ideal for aggressive chemical, pharmaceutical, and semiconductor applications. As an LRQA-certified ISO 9001:2015 OEM/ODM manufacturer with over 19 years of export experience, Tianjin Worlds Valve Co., Ltd. offers fully customizable solutions to meet specific project requirements.

Double flanged butterfly valve for heavy-duty systems: ductile iron body, CF8M disc, vulcanized EPDM seat for zero leakage and metal isolation. Electric actuator (on-off/modulating with feedback), PN16, fully customizable. Certified ISO 9001, CE, UKCA, WRAS, ACS; 100% pressure tested with traceable certs. Factory direct, 15–40 days lead time.

Wafer butterfly valve with ductile iron body, CF8 disc, and EPDM seat. Reliable bubble-tight shut-off for water, HVAC, and industrial systems. OEM/ODM available.

Direct OEM/ODM valve manufacturer vs trading company. Learn the key differences and how to identify a genuine factory for your valve sourcing needs.

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 wafer butterfly valve features a C95400 aluminum bronze disc, ductile iron body, replaceable EPDM seat, and hand lever, available DN50-DN3000. The C95400 disc offers superior corrosion resistance in seawater and aggressive environments, while the ductile iron body provides high strength with epoxy coating protection. The replaceable EPDM seat enables field service without pipeline removal, reducing downtime and lifecycle costs. It delivers bubble-tight sealing for water, seawater, and mild chemicals from -20°C to +120°C, with bidirectional shut-off. Fully customizable materials, pressure ratings, and actuation. Manufactured by an ISO 9001 certified OEM supplier with CE, UKCA, WRAS, and ACS certifications available.

This U-type butterfly valve from Tianjin Worlds Valve Co., Ltd. features an LCB (ASTM A352 Grade LCB) low-temperature carbon steel body, CF8 stainless steel disc, SS410 stem, and EPDM seat. Available DN50-DN2000, the LCB body is impact-tested at -46°C and operates from -46°C to +343°C, making it ideal for propane, liquid ammonia, ethylene, and other chilled fluid services. The U-type design provides automatic centering and superior sealing performance. EPDM seat delivers bubble-tight sealing from -20°C to +120°C. Fully customizable materials, pressure ratings, flange standards, and actuation. Manufactured by an ISO 9001 certified OEM supplier with CE, UKCA, WRAS, and ACS certifications available.

This lug butterfly valve features a C95400 aluminum bronze disc, a PTFE seat, a split body construction, and a hand lever. The aluminum bronze disc provides exceptional corrosion resistance in seawater, brackish water, and aggressive chemical environments. The PTFE seat offers chemical inertness, low friction, and a temperature range of approximately -35°C to +200°C. The two-piece body allows easy maintenance without pipeline removal. The lug design enables dead-end service at full rated pressure. Available DN50-DN1200, PN10/PN16/Class 150. Suitable for marine, chemical, desalination, and industrial applications. Manufactured by Tianjin Worlds Valve Co., Ltd., an ISO 9001 certified OEM supplier.

This lug butterfly valve features a PTFE-encapsulated stainless steel disc and a PTFE seat, providing zero metal contact and exceptional chemical resistance across pH 0–14. The pneumatic actuator enables fast, remote on/off or modulating control with double-acting or spring-return options. The lug body allows dead‑end service at full rated pressure. Available DN50-DN900, PN10/PN16/Class 150, -35°C to +200°C. Ideal for aggressive chemicals, high-purity pharmaceuticals, and food processing. Fully customizable. Manufactured by Tianjin Worlds Valve Co., Ltd., an ISO 9001 certified OEM supplier.