... : 1) Design standards: API 6D, API 600 2) Inspection and test standards: API 598, a Specifications: 1) Design standards: ... API 6D, API 6002) Inspection and test standards: API 598, and JIS B2003 3) Face-to-face standards: ANSI ... -to-metal seat, flexible graphite 11) Operation: manual, pneumatic, electric, hydraulic and pneumatic-hydraulic Outer packing:Wooden cases Forged Gate Valve