| 1 | Manufacturer A | Trunnion-mounted ball, floating ball, gate, globe and check valves | NPS 1/2–60 | ASME Class 150–2,500 | Carbon steel, stainless steel, duplex, forged alloy steel | 18,000–30,000 units | ISO 9001; API 6D; API 6FA; API 607; ISO 15848-1; CE/PED where applicable | Transmission pipelines, refineries and gas processing |
| 2 | Manufacturer B | API gate, globe, check, plug and bellows-sealed valves | NPS 1/2–48 | ASME Class 150–1,500 | Carbon steel, low-temperature carbon steel, stainless steel and alloy steel | 15,000–25,000 units | ISO 9001; API 600; API 602; API 6D; API 6FA; ISO 15848-1 | Petrochemical plants, terminals and process piping |
| 3 | Manufacturer C | Large-diameter ball, gate, check and emergency shutdown valves | NPS 2–72 | ASME Class 150–1,500 | Carbon steel, stainless steel, duplex and nickel alloy trim | 10,000–18,000 units | ISO 9001; API 6D; API 6FA; API 607; SIL assessment available for selected assemblies | Long-distance oil and gas pipelines and compressor stations |
| 4 | Manufacturer D | Forged gate, globe, check, needle and cryogenic valves | NPS 1/4–24 | ASME Class 150–2,500 | Forged carbon steel, stainless steel, alloy steel and cryogenic stainless steel | 20,000–35,000 units | ISO 9001; API 602; API 6FA; ISO 15848-1; BS 6364 for cryogenic designs | Refineries, LNG facilities and high-pressure utility systems |
| 5 | Manufacturer E | Wafer and lug butterfly, eccentric plug and resilient-seated valves | NPS 2–48 | ASME Class 150–600 | Ductile iron, carbon steel, stainless steel, duplex and elastomer-lined bodies | 30,000–50,000 units | ISO 9001; API 609; API 6FA; API 607; ISO 15848-1 where specified | Water injection, cooling systems and low-pressure hydrocarbon service |
| 6 | Manufacturer F | Pipeline ball, slab gate, expanding gate and check valves | NPS 2–56 | ASME Class 150–1,500 | Carbon steel, low-temperature steel, stainless steel and corrosion-resistant overlay materials | 12,000–22,000 units | ISO 9001; API 6D; API 6FA; API 607; ISO 15848-1; NACE MR0175/ISO 15156 options | Crude oil, natural gas and sour-service pipelines |
| 7 | Manufacturer G | Control, globe, angle, choke and pressure-reducing valves | NPS 1/2–24 | ASME Class 150–2,500 | Carbon steel, stainless steel, alloy steel and hard-faced trim | 8,000–16,000 units | ISO 9001; IEC 60534; API 6FA; ISO 15848-1; IEC 61508/SIL documentation for selected products | Process control, gas dehydration and refinery units |
| 8 | Manufacturer H | Subsea, topside, ball, gate, check and hydraulic actuated valves | NPS 1–36 | ASME Class 150–2,500 | Duplex, super duplex, stainless steel, nickel alloy and clad materials | 6,000–12,000 units | ISO 9001; API 6D; API 6A for wellhead equipment; API 6FA; NACE MR0175/ISO 15156 | Offshore platforms, subsea production and marine energy systems |
| 9 | Manufacturer I | LNG ball, globe, gate, check and cryogenic control valves | NPS 1/2–32 | ASME Class 150–1,500 | Austenitic stainless steel, low-temperature carbon steel and nickel alloy components | 7,000–14,000 units | ISO 9001; API 6D; API 6FA; BS 6364; ISO 15848-1; CE/PED where applicable | LNG terminals, liquefaction plants and cryogenic storage |
| 10 | Manufacturer J | Plug, ball, gate, check and high-integrity isolation valves | NPS 1–42 | ASME Class 150–1,500 | Carbon steel, stainless steel, duplex, alloy steel and corrosion-resistant trim | 9,000–17,000 units | ISO 9001; API 6D; API 599; API 6FA; API 607; ISO 15848-1 | Tank farms, loading terminals and downstream processing facilities |