Full-port (also called true-union) means the ball bore diameter is equal to the pipe's inner diameter. This minimizes pressure drop and allows pigging. Our full-port valves meet API 608 bore requirements — always verify against your pipe schedule (e.g., Sch 40 vs Sch 80).

For chlorides above 200 ppm, use 316 (CF8M) or 316L (CF3M). 304 is susceptible to pitting in marine or brackish water. We recommend 316L for welded assemblies to avoid sensitization. Request our free “Material Selection Guide for Ball Valves” for detailed limits.

Yes. Standard PTFE seats handle −20°F to +450°F. For high-temp (>450°F) we offer PEEK, TFM, or metal seat options. For cryogenic (−150°F to −320°F) we use extended bonnets and CTFE seats. Lead time for custom trim: 5–10 days for engineering, 2 weeks for production.

25–35 days FOB Tianjin for sizes 1/4″–12″, Class 150–600, NPT/flanged ends. For rush orders (15–20 days) we offer expedited service at 8% surcharge — subject to material availability. We ship to Houston, Los Angeles, and Vancouver weekly.

Every casting and forging is checked with ultrasonic thickness gauging at three points. Our QA records show 99.6% compliance to ASME B16.34 minimum wall on 12,000+ valves shipped in 2025. Dimensional reports are included with every shipment.

Absolutely. Our standard stainless steel ball valves are designed to API 607 (fire-safe) and ISO 15848-1 (low fugitive emissions). We provide third-party witnessed test reports upon request. Additional 10% of order value for witnessed testing (2–3 days added to lead time).

36 months from date of shipment against material and workmanship defects. We also offer a 10-year pro-rata warranty on castings. Claims are settled within 48 hours — replacement parts or credit issued immediately.

Yes. We provide one free sample (up to 2″ size) for qualified engineering evaluations. You pay only shipping. We'll also include a full spec pack (drawing, material cert, test report). Request your free sample here — limited to the first 10 inquiries this month.