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BW A182 F347 Forged Gate Valve Design Specifications: Size: From NPS 1/2 to NPS 4 Inch. Class: From ASME 900 to ASME 2500LB. Design: API 602 - ISO 15761 - ASME B16.34. Wall Thickness: API 602, ASME B16.34. Pressure-temperature Rating: ASME B16.34. Face-to-face Dimensions for Flanged Valves: ASME B16.10. Flange Design: ASME B16.5. Socket Weld Ends to ASME B16.11. Screwed Ends (NPT) to ASME B1.20.1. Butt Welding Ends: ASME B16.25. Pressure Testing: API 598. Body Material: ASTM A182 F347. Quality Assurance (QA): Every step from procurement through production, welding, assembly, testing, and packaging is in accordance with quality programs and procedures (ASME Section III manual and ISO 9001 manual). Manufacturer: China Yao Forged Valve Co., Ltd Sales Contact: Jeasin Lee Sales Email: sales@yaaovalve.com