Import Ball Valve — Buy in Bulk from Supplier in China

China Wurong Valve Co., Ltd. manufactures API floating type ball valves rated for 150 lb and 300 lb pressure classes, with nominal pipe sizes from 1/2 inch to 8 inches. The floating ball design relies on downstream seat deformation under line pressure to maintain seal contact, a construction standardised through API 6D and API 608 for smaller bore and lower pressure applications. The source specifies pressure ratings and size range but omits body material grade, bore configuration (full or reduced port), and seat material specification. Buyers should treat the 150 lb and 300 lb ratings as nominal ANSI classes requiring confirmation of applicable temperature limits and hydrostatic test pressures.

API floating ball valves in the 1/2 inch to 8 inch range typically employ cast carbon steel bodies per ASTM A216 WCB for standard service, or ASTM A351 CF8M for corrosive applications, with forged bodies in ASTM A105 for higher integrity requirements. The floating ball is generally 316 stainless steel or chrome-plated carbon steel, with seat materials selected from PTFE, RPTFE, nylon, or PEEK depending on pressure, temperature, and chemical compatibility. The source describes industrial grade construction without defining the specific grade or inspection level; typical industry practice requires 100 percent hydrostatic shell and seat testing per API 598 with zero visible leakage for soft-seated designs.

These ball valves install in oil and gas gathering and processing, municipal water treatment, and chemical plant piping systems where on/off service with bubble-tight shutoff is required. The 8-inch upper size limit and 300 lb rating suggest suitability for process piping rather than high-pressure pipeline transmission. Buyers should confirm end flange drilling (ANSI B16.5 Class 150/300, or DIN/EN 1092-1), face-to-face dimension standard (ASME B16.10 or API 6D), and fire-safe certification (API 607 or ISO 10497) with China Wurong Valve Co., Ltd. The source cites ISO certification without standard number or scope; request the certificate and accreditation body. MOQ, lead time, and pricing are not stated and require direct inquiry.

China Wurong Valve Co., Ltd. is located in Yongfu Industrial Zone, Longwan, Wenzhou, Zhejiang 325025, China. Wenzhou-Longwan constitutes one of China's most concentrated valve manufacturing clusters, with extensive foundry, machining, and assembly infrastructure supporting domestic and export markets. The supplier carries imported tier and harbor trust tier classification, with a 0.00 percent response rate and zero recorded average response hours. This profile indicates limited platform-monitored engagement; buyers should initiate direct contact to assess communication capability and technical competency before committing to orders.

No production history, factory floor area, employee count, annual output, revenue, or client reference is provided in the source data. The company name and location suggest dedicated valve manufacture rather than pure trading, but the extent of in-house casting, forging, and machining versus outsourced production is unstated. The API floating type ball valve descriptor implies design familiarity with petroleum industry standards, though API monogram license status, if claimed, requires verification through the API composite index. Buyers should request quality management system certificates, production facility photographs, and recent inspection reports to substantiate capability claims.