The ball with stem is usually used for high pressure trunnion ball valves or cryogenic ball valves. More processed and high processing difficulty, the cost will is more than the regular balls. Sometimes for lowing production cost, stems can be welded with balls.
Keywords:
Valve ball with stem, stem ball, stem valve balls, ball with stem.
Valve Balls Characteristics
The two most important characteristics of the valve balls are the roundness and the surface finish. The roundness must be controlled especially in the critical sealing area. We are able to manufacture valve balls with extremely high roundness and high surface finish tolerances.
What types we can manufacture for valve balls
Floating or trunnion mounted valve balls, solid or hollow valve balls, soft seated or metal seated valve balls, valve balls with slots or with splines, and other special valve balls in every configuration or modified balls or specification that you can design.
Processing Steps:
1: Ball Blanks
2: PMI and NDT Test
3: Heat Treatment
4: NDT, Corrosion and Material Properties Test
5: Rough Machining
6: Inspection
7: Finish Machining
8: Inspection
9: Surface Treatment
10: Inspection
11: Grinding & Lapping
12: Final Inspection
13: Packing & Logistics
Applications:
Stem balls are mainly for high pressure ball valves or cryogenic ball valves.
Major Markets:
Russia, South Korea, Canada, United Kingdom, Taiwan, Poland, Denmark, Germany, Finland, Czech Republic, Spain, Italy, India, Brazil, United States, Israel, etc.
Packaging :
For small size valve balls: blister box, plastic paper, paper carton, plywood wooden box.
For big size valve balls: bubble bag, paper carton, plywood wooden box.
Shipment: by sea, by air, by train, etc.
Payment: By T/T, L/C.
Advantages:
- Sample orders or small trail orders can be optional
- Advanced facilities
- Good production management system
- Strong technical Team
- Reasonable & cost-effective price prices
- Prompt delivery time
- Good after-sales service
