Import Ball Valve — Buy in Bulk from Supplier in China

Shanghai Autotight Valve & Fitting Co., Ltd supplies ball valves engineered for flow control across industrial fluid handling systems. The valve utilises a quarter-turn rotary mechanism with a perforated, hollow sphere (the ball) that rotates to open or close the flow path. The source indicates material options in stainless steel and brass, with no specific grade or ASTM designation provided. The sealing mechanism is described as innovative and leak-proof, though exact seal materials (PTFE, RPTFE, metal-seated) and pressure class ratings are not stated in the listing data.

Ball valves in stainless steel construction typically employ CF8M (316 equivalent) or CF8 (304 equivalent) cast bodies with investment casting or forging processes, while brass variants generally use C36000 free-machining brass or C37700 forged brass for pressure-containing components. The floating ball design referenced in the source is standard for smaller bore sizes up to approximately 2 inches, where downstream seat support maintains seal contact under pressure. Full port and reduced port configurations are common industry variants, with full port offering identical bore diameter to the pipeline for minimal pressure drop. The source mentions gate, globe, check and butterfly valve offerings from this supplier, indicating broader valve manufacturing capability beyond ball valves alone.

These ball valves serve oil and gas production, water treatment plants, chemical processing facilities and HVAC distribution networks. Buyers should confirm pressure-temperature ratings, end connection standards (NPT threaded, socket weld, flanged ANSI/ASME or DIN) and compliance with applicable API 6D, API 608 or ISO 17292 standards directly with Shanghai Autotight Valve & Fitting Co., Ltd. The listing references ISO certification without specifying the standard or scope; buyers should request the certificate number and validity. Trade terms mentioned include FOB and CIF Incoterms, with L/C and T/T payment methods, though exact MOQ, lead times and pricing require direct supplier confirmation.

Shanghai Autotight Valve & Fitting Co., Ltd operates from Room 25E, Building A, No.1068 Xikang Road, Shanghai 200062, China, placing it within one of China's principal industrial valve trading and manufacturing hubs. The supplier is classified as imported tier with harbor trust tier in the platform system, and shows a 0.00 percent response rate with zero average response hours recorded. These signals suggest limited or unmonitored inquiry handling; buyers should test communication responsiveness directly before placing orders.

The company profile offers no stated years in operation, factory size, production capacity, employee count, revenue figures, or named client references. The listing indicates capability across multiple valve types (ball, gate, globe, check, butterfly), suggesting either manufacturing breadth or trading partnerships with multiple production sources. No specific quality management system certification scope, laboratory accreditation, or third-party inspection reports are detailed. Buyers should request ISO certificate copies, factory audit reports, and reference projects with matching product specifications to assess actual manufacturing depth.