Tungsten carbide valve ball and seat:
Specification:
1.High strength, high wear resistance, high precision, high temperature resistant, corrosion resistant.
2.They are mainly used for the sealing of valves of oil pumps in petroleum industry's sand containing wells, viscous oil wells, sea oil wells and high pressure sulfur resistant oil wells, etc. 3. They are used with compatible cemented carbide valve seats.
4.The surface finish, tolerance class and tolerances of dimensions have respectively reached the standards of the machine industry: G5, G10, G16, G40 and G100 of JB/T 9145-1999. 5.Precision machined cemented carbide balls of other grades and specifications are also available based on customers' demands. 6.Compatible high precision valve seats can also be made available.
Grade | Equal to ISO Category Number | Performance | ||
Density | Bend Strength | Hardness | ||
G/Cm3 | N/mm2 | HRA | ||
YG3 | K01 | 14.9-15.3 | 1180 | ≥90.5 |
YG3X | K01 | 15.1-15.4 | ≥1300 | ≥91.5 |
YG6X | K10 | 14.8-15.1 | ≥1560 | ≥91.0 |
YG6A | K10 | 14.7-15.1 | ≥1580 | ≥91.0 |
YG6 | K20 | 14.7-15.1 | ≥1670 | ≥89.5 |
YG8 | K20-K30 | 14.6-14.9 | ≥1840 | ≥89 |
tungsten Carbide are not only widely applied in the oil industry, but also used as pivots or detents for gauges, tips for ballpens, button for tracers, ball grinder, bearing, valve ball etc.
Tungsten Carbide valve ball and valve seat | ||||||||
Type | F01 | F02 | F03 | F04 | F05 | F06 | F07 | F08 |
D(mm) | 15.88 | 19.05 | 23.83 | 28.58 | 31.75 | 34.93 | 42.88 | 57.15 |
H+0.51/-0.25(mm) | 12.70 | 12.70 | 12.70 | 12.70 | 12.70 | 12.70 | 12.70 | 19.05 |
D1+0.00/-0.41(mm) | 19.48 | 22.66 | 28.22 | 33.81 | 36.09 | 41.43 | 48.79 | 74.93 |
D2+0.00/-0.127(mm) | 20.14 | 23.32 | 29.67 | 35.26 | 37.54 | 43.69 | 51.05 | 78.03 |
d±1.27(mm) | 11.68 | 13.97 | 17.02 | 20.96 | 24.38 | 26.92 | 33.27 | 43.18 |
