Severe Service Special-Material Ball, Seat & Stem Manufacturer
We Tongball Valve Co., Ltd. (2009) is a high-tech enterprise with precision valve balls as our flagship product. We engineer critical ball, seat, and stem components for the world's most severe-service applications, trusted by leaders like Emerson, KITZ, and Flowserve.
17+ Years of Specialized Machining Experience
100% CMM Inspection & Full Traceability
ISO 9001, ISO 14001, CE Certified
Emerson Certified Supplier & KITZ Approved Vendor
Our expertise lies in advanced material processing (duplex, titanium, Inconel, zirconium) and high-precision coating technologies (HVOF, Plasma Spray) that deliver proven results:
Roundness: ≤ 0.0011mm | Sphericity ≤0.002mm
1.5 Million cycle sealing test validated
Coating hardness up to 1400 HV
Our Mission & Focus
Vision: To be among the world's most competitive high end ball valve ball suppliers, delivering precision, durability and custom solutions to global customers.
Values: People-Oriented, Technology-Driven, Quality-First, Win-Win Cooperation. We live by "Dust on our face, shine on your valve balls" – every detail matters.
Our WOrking PROJECT
Latest From Our Work
Our Promise - The Foundation of Trust
More Than Components. A Foundation of Trust.
Every partnership with Tongballs built upon these three unwavering commitments that define how we operate and deliver value.
Uncompromising Quality
We deliver spheres with roundness ≤0.001mm and surface finish Ra ≤0.2μm – verified by 100% CMM inspection and a 10-year traceable record. Every component passes 1.5 million cycle tests before leaving our factory.
On-Time, Every Time
With a 98%+ on-time delivery rate and a strategic buffer stock, we ensure your production lines keep moving. Need it faster? Our emergency fast-track can cut lead times by 40%.
Beyond a Supplier
We co-engineer solutions for severe applications, leveraging 18 patents in special materials and coatings. Your challenge becomes our project – with direct access to our engineering team.
See the Precision in Action
The best proof of our capability is our process. We invite you to take a closer look at the advanced systems and disciplined environment where our promise becomes reality.