Forged Steel Ball Valve
TTF 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; JISB0203
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
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