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Our Forged Steel Ball valve has two designs. One is 2-pc structure, screwed and sealed by PTFE gasket; the other is 3-pc structure, bolted. It is applicable to different working temperature and medium for reason of selecting different seat and gasket/packing material. Design Structure and Features: A. Design and Manufacturing: As per ANSI B 16.34, API 602, BS 5352 B. Ends Connection: 1) SW Dimensions as per ANSIB.1611; JIS B2306 2) Screwed Dimensions ANSIB1.20.1 BS21; ISO7/1; JISB0 C. Valve Inspection and Test: As per API 598 D. Material: According to AISI/ASTM E. Body Material: A105; F5; F11; F22; 304; 304L; 306; 306L; LF2..... F. Markings as per MSS-SP-25 Structure and Features: Full Bore or reduced bore 90 degree position and lock structure Firesafe and antistatic design A set of opposite butterfly type spring washer Blow-out proof stem Double sealing structure in the middle of the stem Sealing material: PTFE, RTFE, Nylon, PPL