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Basic Introduction
Monel valve balls are special valve balls designed for highly corrosive working conditions such as those in the marine and chemical industries. They are based on Monel 400 (Ni-Cu alloy) or Monel K-500 (precipitation hardening type), and possess excellent corrosion resistance and mechanical properties. The products can withstand media such as seawater, full-concentration hydrofluoric acid (up to boiling point), alkalis, and sulfuric acid. Through hot working and age hardening processes (for K-500), their strength and corrosion fatigue resistance are enhanced, making them core sealing components for pickling, alkylation, and marine fluid systems.
Product Specification
|
Indicator Item |
Technical Parameters |
|
Size Range |
1/2"–56" (DN15–DN1400) |
|
Pressure Rating |
PN10–PN420(Class 150–4500) |
|
Sphere Material |
Monel 400 (Ni-Cu alloy), Monel K-500 (precipitation hardening type) |
|
Sealing surface material |
Monel alloy body (available with hardening treatment) |
|
Coaxiality |
≤0.05mm |
|
Roundness Accuracy |
≤0.02mm |
|
Surface Hardness |
Monel 400: Base hardness; Monel K-500: Strength and hardness significantly improved after age hardening |
|
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 |
-200°C (cryogenic) to 400°C (normal operating conditions), K-500 can be adapted to a higher temperature range |
Product Features
- Specialized for highly corrosive working conditions, with Monel 400 (Ni-Cu alloy), Monel K-500 (precipitation hardening type) as the base material
- It has extremely strong corrosion resistance and can withstand highly corrosive media such as seawater, full-concentration hydrofluoric acid (up to boiling point), alkalis, and sulfuric acid
- After hot working, the K-500 material is additionally processed through age hardening process, resulting in a significant improvement in strength and corrosion fatigue resistance
- Excellent mechanical properties, suitable for various highly corrosive and harsh environments
- As a core sealing component, it operates stably and has a long service life
- Specifically adapted to highly corrosive process scenarios, with strong versatility
Product Application Scope / Usage Scenarios
Applicable Media:
seawater, full-concentration hydrofluoric acid (up to boiling point), alkalis, sulfuric acid and other highly corrosive media
Applicable Working Conditions:
Marine Environment, Chemical Strong Corrosion Working Conditions, Pickling Process, Alkylation Process Working Conditions
Application Area:
Pickling Industry, Alkylation Unit, Marine Fluid System, Chemical Strong Corrosion Pipeline
FAQ
What core material is used for the Monel valve ball?
Uses Monel 400 (Ni-Cu alloy) or Monel K-500 (Precipitation Hardening Type) as the substrate.
What corrosive media can Monel valve balls withstand?
It can withstand strong corrosive media such as seawater, full-concentration hydrofluoric acid (up to boiling point), alkalis, and sulfuric acid.
What special process has Monel K-500 material undergone?
After the age hardening process, the strength and corrosion fatigue resistance are further improved.
What are the core advantages of Monel valve balls?
The core advantage is excellent corrosion resistance and mechanical properties, specifically designed for highly corrosive working conditions, with stable and reliable operation.
What are the main applications of Monel valve balls?
It is mainly used in pickling, alkylation, and marine fluid systems as a core sealing component.
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