Zhejiang Jigong Valve Co., Ltd. is one of the most reliable manufacturers and suppliers of stainless steel valve ball in China. If you're going to wholesale cheap stainless steel valve ball made in China, welcome to get pricelist from our factory. All customized products are with high quality and low price.
Basic Introduction
Stainless steel valve balls are universal sealing components in the industrial field, suitable for cryogenic to medium temperature working conditions. Through precision cold heading, heat treatment, and finishing, customized hardness (martensitic type can reach HRC 60+) and excellent corrosion resistance can be achieved, enabling stable handling of water, steam, fuel, chemicals, and food media; among them, 17-4PH material is particularly suitable for harsh industrial and marine application scenarios, balancing strength and corrosion resistance.

Product Specification
|
Indicator Item |
Technical Parameters |
|
Size Range |
1/2"–56" (DN15–DN1400) |
|
Pressure Rating |
PN10–PN420(Class 150–4500) |
|
Sphere Material |
Stainless steels/precipitation hardening stainless steels such as F304/F304L/1.4301, F316/F316L/1.4401, 17-4PH, etc. |
|
Sealing surface material |
Stainless steel body (additional hardening treatment available) |
|
Coaxiality |
≤0.05mm |
|
Roundness Accuracy |
≤0.02mm |
|
Surface Hardness |
Martensitic/precipitation hardening type can reach HRC 60+, while austenitic type is the base hardness |
|
Surface Roughness |
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 |
|
Applicable Temperature |
Depending on the material: -196°C (cryogenic type) ~ 400°C (medium temperature type), 17-4PH can be adapted to a higher temperature range |
Product Features
- Industrial General-purpose Sealing Elements, suitable for a wide range of application scenarios
- Working conditions cover deep cryogenic to medium temperature, with strong environmental adaptability
- Through precision cold heading, heat treatment, and finishing, the process is mature
- Supports hardness customization, with martensitic hardness reaching up to HRC 60+
- Excellent corrosion resistance, suitable for transporting various media
- 17-4PH material combines high strength and high corrosion resistance, suitable for harsh industrial and marine scenarios
Product Application Scope / Usage Scenarios
Applicable Media:
Water, Steam, Fuel, Chemicals, Food Media
Applicable Working Conditions:
Cryogenic to Medium Temperature Working Conditions, Harsh Industrial Environments, Marine Application Scenarios
Application Area:
General Industry, Harsh Industrial Equipment, Offshore Engineering
FAQ
What temperature range is the stainless steel valve ball suitable for?
Applicable to cryogenic to medium temperature operating conditions.
Can the hardness of stainless steel valve balls be customized?
Yes, after customized treatment, the hardness of martensite can reach HRC 60+.
What media can stainless steel valve balls handle?
Can stably handle water, steam, fuel, chemicals, and food media.
Which stainless steel material is suitable for harsh industrial and marine scenarios?
17-4PH material combines strength and corrosion resistance, making it particularly suitable for this type of scenario.
What type of component does a stainless steel valve ball belong to?
belongs to the industrial field general-purpose sealing element , with a wide range of applications.
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