Tungsten carbide valve ball and seat have high hardness, wear and corrosion resistance as well as good anti-compression and thermal shock characters, it is widely used in petroleum drill and exploitation equipment.
Tungsten carbide valve ball and seat can be made by different material grade, however different material grade performance would directly affects the use effect and service life of the sucker rod pumps. It is very important to choose the correct material grade.
Valve ball and seats made of tungsten carbide have high strength,high wear resistance, high precision, good temperature resistance and good corrosion resistance.
The most common material grade details are as follows:
| Grade | Binder | Density g/cm3 | HRA | TRS |
| YG6 | Co | 14.9 | 89.5 | 2150 |
| YG8 | Co | 14.6 | 89 | 2320 |
| YN6 | Ni | 14.8-15.0 | 90.5 | 2100 |
| YN9 | Ni | 14.6-14.8 | 89.5 | 2200 |
| YN12 | Ni | 14.2-14.4 | 86.5 | 2250 |
Tungsten carbide valve ball and valve seat size specifications (mm):
| Type | Q-15.9 | Q-17.5 | Q-22.2 | Q-31.8 | Q-34.9 | Q-38.1 | Q-50.8 | Q-57.2 | Q-63.5 |
| Diameter D | 15.9 | 17.5 | 22.2 | 31.8 | 34.9 | 38.1 | 50.8 | 57.2 | 63.5 |
Tolerance Allowed
| Diameter D | D≤25 | 25<d≤45< td=""> | 45<d≤60< td=""> | D≥60 |
| Tolerance | +0.5~+1.5 | +0.7~+2.0 | +1.0~+2.5 | +1.5~+3.0 |
| Type | D | d | H | R |
| FZ-23.3*14.0*12.9-R-1.6 | 23.3 | 14.0 | 12.90 | 1.60 |
| FZ-29.6*17.0*12.8-R-1.6 | 29.6 | 17.0 | 12.80 | 1.60 |
| FZ-35.2*21.0*12.8-R-2.4 | 35.2 | 21.0 | 12.80 | 2.40 |
| FZ-37.5*24.4*12.8-R-2.4 | 37.5 | 24.4 | 12.80 | 2.40 |
| FZ-43.6*27.0*12.8-R-2.4 | 43.6 | 27.0 | 12.80 | 2.40 |
| FZ-68.8*41.3*19.2-R-2.4 | 68.8 | 41.3 | 19.20 | 2.40 |
Tolerance Allowed
| Out Diameter | Tolerance | ||
| D | d | H | |
| D≤30 | +0.5~+1.0 | -1.0~-0.3 | +0.4~+1.0 |
| D>30 | +0.8~+1.5 | -1.2~-0.5 | +0.8~+1.5 |
We could also producing under your drawing.
Application:
Tungsten carbide valve ball and seats are used for sealing valves of oil pumps in petroleum industry's sand containing wells,viscous oil wells, sea oil wells,high pressure sulfur resistant oil wells etc.
Contact: Ms. Carol
Phone: +86-731-28632688
E-mail: sales@dlcarbide.com
Add: Jinshan Road（Jinshan Technology Industrial Park）, Hetang District, Zhuzhou City, Hunan Province, China
