Big Size Valves Face to Face Dimensions

[kamiloktay]

Hi,

I am new at valve industry and i need help about face to face dimensions of valves.
For a gate valve manufacturers says, dimensions and design acc.to api6d on drawings. when I read api6d there is not any information about dn1200 gate valve ftf dimensions. please help me about big size valves ftf dimensions like dn1200 gate

[kamiloktay]

nobody knows?

[inconel]

Thanks