Many carbide grades are available for percision machined cemented carbide balls with their high percision, good wear resistance.

Percision machined carbide balls and valve seats

1. High strength, hign wear resistance, high percision, good temperature resistance and good corrosion resistance.

2. Mainly used for the sealing of valves of oil pumps in petroleum industry`s containing wells, viscous oil wells, sea oil wells and high pressure sulfur resistant oil wells, etc.

3. Balls and seats are used with compatiable cemented carbide valve seats.

4. The finished surface, tolerance standard have 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. Compatiable high precision valve seats can also be made.

Dia (D)	Inch	3/4	7/8	15/16	1	11/8	13/16
	mm	19.050	22.225	23.813	25.400	28.575	30.163
	Inch	11/4	13/8	11/2	15/8	1 11/16	1 3/4
	mm	31.750	34.925	38.100	41.275	42.863	44.450
	Inch		2	11/4		2 1/2
	mm	50.000	50.800	57.150	60.000	63.500

Tungsten Carbide Balls and Seats