• ASME B16.10-2009 Face-to-Face and End-to-End Dimensions of Valves.pdf
• JIS B2005-3-2-2005 Industrial-process control valves-Part 3-2：Dimensions-Face-to-face dimensions for rotary control valves except butterfly valves.pdf
• JIS B2005-3-3-2005 Industrial-process control valves-Part 3-3：Dimensions-End-to-end dimensions for buttweld two-way globe-type straight pattern control valves.pdf
• ANSI/ISA-75.08-1999 installed face to face dimensions for flanged clamp or pinch valves.pdf
• BS EN 10055-1996 Hot rolled steel equal flange tees with radiused root and toes. Dimensions and tolerances on shape and dimensions .pdf
• BS 2080-1989 Specification for face-to-face centre-to-face end-to-end and centre-to-end dimensions of valves.pdf