Zhejiang Jigong Valve Co., Ltd. is one of the most reliable manufacturers and suppliers of hard chrome plated valve ball in China. If you're going to wholesale cheap hard chrome plated valve ball made in China, welcome to get pricelist from our factory. All customized products are with high quality and low price.
Product Overview
Hard chrome-plated valve balls adopt precision electroplating technology to deposit a dense high-hardness chromium protective layer on the metal substrate surface. With coating hardness up to HV 800–1000, this product features outstanding wear resistance, scratch resistance and moderate corrosion resistance, and its ultra-smooth mirror surface significantly reduces the friction torque of the sealing pair. It is a mature, stable and cost-effective surface hardening solution for valve balls, widely used in industrial fluid sealing systems with conventional wear resistance and low-to-medium corrosion requirements.
Technical Parameters
|
Parameter Index |
Performance Data |
|
Dimension Range |
1/2"–12" (DN15–DN300) |
|
Pressure Class |
Class 150–600LB(PN16–PN100) |
|
Base Material |
Carbon steel (A105), stainless steel (F304/F316), alloy steel and other common valve ball substrates |
|
Coating Material |
High-density hard electroplated chromium layer |
|
Coaxiality Tolerance |
≤0.05mm |
|
Roundness Precision |
≤0.02mm |
|
Coating Hardness |
HV 800–1000 (Hard Chrome Layer) |
|
Surface Finish |
Ra ≤ 0.4 μm (sealing surface) |
|
Outer Diameter Tolerance |
1/2"–4": +0.03 mm;6"–12": +0.05 mm |
|
Inner Diameter Tolerance |
1/2"–4": 0~+0.03 mm;6"–12": 0~+0.05 mm |
|
Operating Temperature |
-20°C to 400°C (matched with the selected substrate material) |
Product Advantages
- Adopt precision electroplating process to form a uniform and dense hard chromium layer with stable performance
- Ultra-high coating hardness, strong resistance to surface scratches and mechanical wear
- Mirror-smooth surface, effectively lowering friction torque and improving operating flexibility
- Good adaptability to mild and medium corrosive fluids, meeting conventional industrial sealing needs
- Mature process, stable quality and high cost-performance ratio for large-scale application
Application & Service Conditions
Applicable Fluids:
Clean industrial water, conventional oil medium, neutral fluid, low-corrosive chemical medium
Applicable Environments:
Conventional pressure pipelines, wear-resistant sealing scenarios, low-friction torque working conditions, medium corrosion environments
Application Industries:
Water supply and drainage systems, general fluid pipelines, mechanical valve assemblies, conventional petrochemical equipment, civil industrial valves
Frequently Asked Questions
How is the bonding force of the hard chrome plating layer?
The hard chrome layer is tightly bonded with the metal substrate through professional electroplating treatment, not easy to peel off or crack under normal working conditions.
Why can it reduce the operating torque of the valve?
The surface of the hard chrome-plated valve ball is a mirror-smooth structure, which greatly reduces the friction coefficient between the ball and the valve seat, thus lowering the operating torque.
What is the biggest advantage of this valve ball?
It combines high hardness, wear resistance and low friction torque, with mature process and excellent cost performance, suitable for mass industrial applications.
Can it be used for strong corrosive media?
It is not recommended for strong corrosive media. This product is more suitable for mild to medium corrosive and conventional wear-resistant working conditions.
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