Specifications
The seat must be checked for tightness with the help of a vacuum sealed device and the ball under the vacuum pressure not less than 0.65kgf/cc during 10 seconds. The pressure changes are strictly forbidden if the seat is not hermetic in the seat.
Properties: good resistance against corrosion and oxidation;
Application fields: Subsurface pump/Oilfield Tubing pump/Insert pump, sealing, it is widely used in petroleum industry and other anti-corrosion machine parts.
Material: cobalt-base alloy(stellite), nickel -base alloy, Titanium carbide, Tungsten Carbide, stainless steel or other corrosion resistant material.
Technical Parameters
1. Industrial Standard: API or GOST
2. Manufacturing Process: B1 or B2
3. Treated with anti-corrosion material.
4. Valve Seat Height: 12.7mm
5. Usage: oilfield sucker rod pump or used as other valve pair
6. Model: V11-106, V11-125, V1-150, V11-175, V11-225, V11-250 or oversized
Couple ball valve API 70 mm
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
Treated anti-corrosion chemical composition
Couple ball valve API 57 mm
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
Cobalt Alloy Powder Metal Ball and Seat
API No. |
Seat Size |
Ball Size |
| V11-106 |
1-1/16" |
5/8" |
| V11-125 |
1-1/4" |
3/4" |
| V11-150 |
1-1/2" |
15/16" |
| V11-175 |
1-3/4" |
1-1/8" |
| V11-200 |
2" |
1-1/4" |
| V11-225 |
2-1/4" |
1-3/8" |
| V11-250 |
2-3/4" |
1-1/16" |
| V11-375 |
3-3/4" |
2-1/4" |
Audited Supplier 
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