Chemical Processing Solutions
Chemical-resistant rubber sealing solutions for harsh processing environments. Engineered to withstand acids, bases, solvents, and extreme conditions.
Chemical Processing Applications
Reliable sealing solutions for demanding chemical processing environments
Chemical Resistance
Our materials resist a wide range of chemicals and harsh conditions
Acids (Sulfuric, Hydrochloric, Nitric)
Bases (Sodium Hydroxide, Potassium Hydroxide)
Solvents (Acetone, Toluene, MEK)
Oils and Petroleum Products
Steam and Hot Water
Ozone and UV Exposure
Relevant Product Categories
Explore our chemical-resistant sealing products
Manufacturing Processes
Advanced manufacturing for chemical processing applications
Chemical-Resistant Materials
Key Features
Chemical Compatibility
Comprehensive material selection guide for different chemical environments
Strong mineral acids and corrosive chemicals require specialized elastomers that maintain integrity in low pH environments.
- Viton®: Excellent resistance to sulfuric, hydrochloric, and nitric acids
- Kalrez®: Superior performance with concentrated acids and oxidizers
- PTFE: Complete chemical inertness with all acids
- EPDM: Good resistance to dilute acids and bases
High pH environments and caustic solutions demand materials that resist saponification and chemical attack.
- EPDM: Excellent resistance to sodium and potassium hydroxide
- Viton®: Good performance with dilute alkaline solutions
- PTFE: Complete chemical resistance to all bases
- Silicone: Moderate resistance to alkaline solutions
Hydrocarbon solvents, ketones, and esters require materials with low swell characteristics and chemical stability.
- Viton®: Superior resistance to aromatic and aliphatic hydrocarbons
- Kalrez®: Excellent performance with all organic solvents
- PTFE: Complete chemical inertness with all solvents
- Nitrile: Good resistance to petroleum-based solvents
Chlorine, peroxides, and specialty chemicals require materials that resist oxidative degradation.
- Kalrez®: Outstanding resistance to chlorine and oxidizing agents
- PTFE: Complete resistance to all oxidizing chemicals
- Viton®: Good performance with moderate oxidizers
- EPDM: Suitable for dilute oxidizing solutions
Material Selection Guidelines
Selecting the right elastomer for your chemical processing application requires consideration of multiple factors beyond just chemical compatibility.
Concentration
Material performance varies significantly between concentrated and dilute solutions.
Temperature
Chemical resistance decreases as temperatures increase above ambient levels.
Duration
Short-term exposure may be acceptable where long-term immersion fails.
Temperature & Pressure Capabilities
Extreme condition performance for demanding chemical processing applications
Chemical processing often involves elevated temperatures that challenge elastomer performance. Our materials maintain sealing integrity in extreme heat.
High-pressure systems in chemical processing require seals that maintain integrity under extreme compression and system pressure.
Critical Application Considerations
Chemical processing seals often operate at the intersection of multiple extreme conditions. Material selection must account for combined effects.
- • Combined Stress: High temperature + chemical exposure accelerates degradation
- • Thermal Cycling: Repeated heating/cooling causes stress cracking
- • Pressure Pulsation: Dynamic pressure changes require fatigue-resistant materials
- • System Compatibility: Seals must be compatible with all process fluids
Safety & Compliance
Meeting rigorous industry standards and regulatory requirements for chemical processing safety
Compliance with chemical processing industry standards ensures safe and reliable operation.
- • ASME Pressure Vessel Code
- • API Standards (pumps, valves)
- • ASTM Chemical Resistance
- • ISO 9001 Quality Systems
Meeting environmental and safety regulations for chemical processing facilities.
- • EPA Clean Air Act
- • OSHA Process Safety
- • REACH Chemical Registration
- • RoHS Environmental Standards
Comprehensive testing ensures material performance meets application requirements.
- • Chemical Immersion Testing
- • Temperature Cycling
- • Pressure Endurance
- • Mechanical Property Validation
Chemical Processing Applications
Critical sealing solutions for chemical processing equipment and systems
Chemical process pumps require seals that withstand abrasive slurries, corrosive fluids, and high pressures while maintaining zero leakage.
- • Centrifugal pump mechanical seals
- • Diaphragm pump sealing systems
- • Progressive cavity pump components
- • Magnetic drive pump isolation
Control valves and shut-off valves in chemical systems need seals that provide bubble-tight closure and long-term reliability.
- • Ball valve seats and seals
- • Gate valve stem packing
- • Control valve trim components
- • Check valve sealing elements
Chemical reactors and pressure vessels require seals that maintain integrity under extreme conditions and prevent hazardous leaks.
- • Reactor lid and cover seals
- • Agitator shaft seals
- • Pressure vessel closures
- • Manway and inspection port seals
Piping systems and connectors need seals that prevent leaks in chemical transfer lines and maintain system pressure integrity.
- • Flanged connection gaskets
- • Threaded fitting seals
- • Expansion joint components
- • Hose and coupling seals
Preventive Maintenance
Regular inspection and replacement of seals prevents costly downtime and ensures safe operation of chemical processing equipment.
Visual Inspection
Check for cracks, swelling, or deformation
Pressure Testing
Verify seal integrity under operating conditions
Scheduled Replacement
Replace seals based on operating hours or conditions
Conquer Chemical Challenges
Partner with National Rubber Corporation for chemical-resistant sealing solutions
Chemical Compatibility Notes
Material selection depends on the specific media, concentration, temperature, and exposure time. We help balance FKM, EPDM, PTFE-lined solutions, and perfluoroelastomers to achieve target life without over-specifying cost.
Where exposure varies, we consider sacrificial elements or backed-seal geometries to protect the primary seal. We also coordinate immersion and thermal cycling tests to validate performance before production.