1. Couple ball valve API 70 mm, V11-250
Equipment shall comply with API 11AX V11
Material parts: stellite  
Ball diameter, mm: 42.8625
Height of seat, mm: 12.70
Outside diameter, mm: 51.054
Nominal bore, mm: 2 810
Valve material: stellite
Chemical composition Ball- carbon 2.0-2.7 , chromium - 31.0-34.0, silicon - not more 1.5, manganese - not more 1.0,Nickel - not more 3.0, tungsten - 16.0 - 19.0
Hardness - 56 - 63 HRC
Density - 8,6 - 8,8 g/cm3
Seat - carbon 1.5-2.6 , chromium - 23.0-33.0, silicon - not more 1.5, manganese - not more 1.0,
Nickel - not more 3.0, tungsten - 11.0 - 14.0
Hardness - 50 - 56 HRC
Density - 8,6 - 8,8 g/cm3
Shall be treated anti-corrosion chemical composition

2. Couple ball valve API 57 mm, V11-225
Equipment shall comply with API 11AX V11
Material parts: stellite  
Ball diameter, mm: 34.925
Height of seat, mm: 12.70
Outside diameter, mm: 43.688
Nominal bore, mm: 2 554
Valve material: stellite
Chemical composition Ball- carbon 2.0-2.7 , chromium - 31.0-34.0, silicon - not more 1.5, manganese - not more 1.0,Nickel - not more 3.0, tungsten - 16.0 - 19.0
Hardness - 56 - 63 HRC
Density - 8,6 - 8,8 g/cm3
Seat - carbon 1.5-2.6 , chromium - 23.0-33.0, silicon - not more 1.5, manganese - not more 1.0,
Nickel - not more 3.0, tungsten - 11.0 - 14.0
Hardness - 50 - 56 HRC
Density - 8,6 - 8,8 g/cm3
Shall be treated anti-corrosion chemical composition