Chemical processing and severe-service piping systems require valves capable of handling highly corrosive acids, alkalis and aggressive process fluids. African Valve, an Zirconium Valves Manufacturer in South Africa, provides zirconium valves designed for reliable isolation and flow control in demanding chemical applications. Zirconium grades such as Zirconium 702 (UNS R60702) and Zirconium 705 (UNS R60705) are selected primarily for their exceptional corrosion resistance. Zirconium's protective oxide layer provides resistance to many mineral and organic acids, although process chemistry, temperature, concentration and fluoride content must be carefully evaluated.
Valves Features
- High Corrosion Resistance
- Excellent Acid Resistance
- Fluoride-Sensitive Material
- High-Temperature Capability
- Localized Corrosion Resistance
- Long Service Life
- Multiple Valve Configurations
- Manual or Automated Operation
Technical Specifications
Parameter | Specification |
Valve Type | Zirconium Gate / Globe / Ball / Check Valve |
Material Grade | Zirconium 702 / Zirconium 705 |
UNS Grade | R60702 / R60705 |
Application | Chemical / Petrochemical / Pharmaceutical / Process Piping |
Size Range | Typically DN15 to DN600, depending on valve type |
Pressure Rating | Project-specific according to size, material and valve design |
End Connection | Flanged / Threaded / Socket Weld / Butt Weld |
Operation | Handwheel / Lever / Gear Operated / Pneumatic / Electric Actuated |
Flow Direction | Bi-Directional or Uni-Directional, depending on valve design |
Materials & Components
- Body - Zirconium 702 / Zirconium 705
- Bonnet - Zirconium 702 / Zirconium 705
- Disc - Zirconium 702 / Zirconium 705
- Ball - Zirconium 702 / Zirconium 705
- Stem - Zirconium / Compatible Nickel Alloy
- Shaft - Zirconium / Corrosion-Resistant Alloy
- Seat - PTFE / RPTFE / PEEK / Metal Seat
- Bearing - PTFE-Based Materials / Compatible Corrosion-Resistant Alloy
- Gasket - PTFE / Graphite / Spiral Wound
- Packing - Flexible Graphite / PTFE-Based Materials
- Fasteners - Stainless Steel / Nickel Alloy / Application-Specific Alloy
- Trim - Zirconium / Compatible Corrosion-Resistant Alloy
Applications
- Chemical Processing - Aggressive chemical and acid-handling systems
- Hydrochloric Acid Systems - Selected HCl process services
- Sulfuric Acid Processing - Selected sulfuric acid applications
- Nitric Acid Systems - Corrosive nitric acid process lines
- Chemical Recovery - Corrosive recovery and process systems
- Mining & Mineral Processing - Selected corrosive process-fluid systems
- Petrochemical - Corrosive process and chemical-handling systems
- Corrosive Wastewater Treatment - Selected aggressive treatment streams
- Specialty Chemicals - Severe chemical-process applications
Testing & Standards
Depending on the valve construction, pressure rating, valve type and connection configuration, applicable requirements may include ASME B16.34, API 600, API 602, API 608, API 623, API 598, API 6D, ASME B16.5, ASME B16.10 and ASME B16.25, where relevant to the selected valve design. Testing should be carried out according to the applicable valve standard and project specification, with pressure, leakage, material and dimensional requirements confirmed for the specific zirconium valve configuration.
Standard Zirconium Valves Products
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