从India供应商批量进口A351 Cn7m Alloy 20 Globe Valve

The A351 CN7M Alloy 20 Globe Valve from SQK Valves Fittings & Automation Private Limited is a cast austenitic stainless steel valve designed for throttling and on/off service in severely corrosive process streams. The body material conforms to ASTM A351 Grade CN7M, an Alloy 20 composition with nominal 33% nickel, 20% chromium, 2-3% molybdenum and deliberate copper additions that improve resistance to sulfuric acid environments. The globe configuration permits precise flow regulation through a linear motion disc that seats perpendicular to the flow path, creating a higher pressure drop than gate or ball alternatives but offering superior controllability. Sizes are offered to match specific pipeline requirements, though the listing does not state exact dimensional ranges.

Alloy 20 (UNS N08020) was developed specifically for hot sulfuric acid service and remains one of the most cost-effective materials for moderate chloride-containing acids where super-austenitic or nickel alloys would be excessive. The A351 CN7M cast grade delivers mechanical properties roughly equivalent to wrought Alloy 20, with typical yield strength of 240 MPa and elongation of 30% standard. Sealing relies on a renewable disc-and-seat arrangement; the stem packing can be adjusted or replaced inline without valve removal. Face-to-face dimensions typically follow ASME B16.10 long pattern for Class 150 and Class 300 ratings, though the exact pressure class for this listing should be confirmed with the supplier.

Primary applications span chemical processing (sulfuric acid plants, pickling lines, fertilizer production), pharmaceutical API manufacture, and upstream oil and gas where produced water carries corrosive species. Buyers are typically EPC contractors, maintenance procurement teams at refineries, and project buyers for greenfield chemical installations. The supplier lists FOB and CIF as available Incoterms, with flexible MOQ arrangements. Response rate and average response time data are not available in the supplier profile, so direct communication is advisable to establish quoting speed and sample availability.

SQK Valves Fittings & Automation Private Limited is an India-based supplier listed with imported tier status and harbor trust tier. The company profile does not disclose founding year, employee count, annual revenue, or named clients. The response rate is shown as 0.00% with zero average response hours recorded, which indicates either a new listing or inactive enquiry management rather than verified trading history. No factory audit certificates, ISO registration numbers, or third-party verification documents are referenced in the available data.

The supplier offers valve and automation products including Alloy 20 material grades for corrosive service applications. Its product range covers globe valves, swing check valves, and related fittings in cast stainless and nickel alloys. Buyers should request company registration documents, reference lists for prior CN7M valve deliveries, and evidence of material traceability (mill test certificates to ASTM A351) before placing orders. Direct communication through the available channel is essential given the absence of response statistics.