Import Cast Steel And Stainless Steel Butterfly Valve — Buy in Bulk from Supplier in China

This butterfly valve is constructed from cast steel WCB or stainless steel grades 304, 316, CF8, and CF8M for the body, bonnet, and disc, with stems made from 304, 316, 2Cr13, or 1Cr18Ni9Ti. The seal ring uses 304, 316, alloy, or PTFE depending on the application. It complies with ANSI B16.10 for face-to-face dimensions, ANSI B16.5 for flange end standards, and API 609 for design and manufacture. Test pressure follows API 598, with shell test at 3.0 bar for 150 lb class and 7.5 bar for seal test, operating within a temperature range of -29°C to 425°C.

These valves are typically used in systems requiring moderate to high pressure and temperature control, such as water treatment, oil and gas pipelines, and chemical processing. The PTFE seal offers low friction and chemical resistance, while alloy seals suit higher temperature environments. The disc design allows for quarter-turn operation, making it suitable for on-off or throttling service. Standard sizes range from 2 inches to 36 inches, with pressure classes up to 300 lb. These are not general-purpose valves but engineered for industrial fluid control where durability and leak-tightness are critical.

Buyers in the water infrastructure, petrochemical, and power generation sectors commonly source these valves for replacement or new installations. Packaging is typically in wooden crates with internal anti-rust treatment. Minimum order quantities are not stated and must be confirmed directly. Delivery terms are typically FOB Qingdao or Tianjin, with lead times varying by order volume. Buyers should request material test reports and dimensional inspection certificates before shipment.

Yuanda Valve Group Co., Ltd. is based in Xiyin Village, Longyao County, Hebei Province, China, and manufactures industrial valves including butterfly, globe, and check valves. The company's profile does not state years in operation, workforce size, revenue, or client names. It holds no public certifications visible in the listing, and response metrics show no recorded buyer interactions. The listing confirms production capability but provides no details on quality control systems, testing equipment, or export experience beyond product descriptions.

The supplier's facility appears to focus on cast and forged valve components for global markets, with production lines for carbon steel and stainless steel variants. No mention is made of ISO certification, third-party inspection protocols, or in-house R&D. Buyers should treat this as a manufacturer with documented product specifications but limited public verification signals. Direct communication is required to confirm capacity, packaging standards, or documentation availability.