Valve Applications in the Chemical Industry

Precision, Safety, and Corrosion Resistance for Critical Processes

In the chemical industry, valves play a vital role in handling aggressive media, toxic fluids, and volatile gases. They must perform reliably under extreme temperatures, pressures, and corrosive environments to ensure process stability and personnel safety.


Acid and Alkali Handling

Resistant to the Harshest Chemicals

Used in transfer, dosing, and storage of acids (e.g., H₂SO₄, HCl) and alkalis (e.g., NaOH)

Requires corrosion-resistant materials like PTFE, PFA, Hastelloy, or Alloy 20

Must prevent leaks, vapor emissions, and contamination

Ideal Valve Types:
Lined Ball Valves, PTFE Lined Butterfly Valves, Diaphragm Valves


Solvent and Flammable Liquid Processing

Safe Operation with Volatile Compounds

Involved in mixing, distillation, and transfer of flammable organic solvents

Valves must be fire-safe, anti-static, and certified for explosion-proof zones

Bubble-tight shut-off prevents vapor loss and ignition risk

Ideal Valve Types:
Fire-Safe Ball Valves, Plug Valves, Flame Arrestor Valves


Reactor and Polymerization Systems

Precision Under High Pressure and Temperature

Valves used in reactors, pressure vessels, and polymer units must handle variable process loads

Requirements: automated control, quick response, chemical compatibility

Ideal Valve Types:
Control Valves, High-Performance Globe Valves, Actuated Ball Valves

Corrosive Gas and Vapor Control

Leak-Free Performance for Hazardous Media

Applications include chlorine, ammonia, SO₂, H₂S, and other hazardous gases

Gas-tight shutoff and anti-fugitive emission design are essential

Often integrated with scrubbing systems or gas distribution manifolds

Ideal Valve Types:
Bellows-Sealed Globe Valves, PFA-Lined Ball Valves, Pressure Relief Valves


Tank Farms & Bulk Storage

Secure Isolation and Flow Regulation in Storage Units

Used on tank inlets/outlets, manifold pipelines, and loading arms

Requirements: long service life, anti-corrosion, anti-static operation, remote actuation

Ideal Valve Types:
Top Entry Ball Valves, Butterfly Valves, Breather Valves


Wastewater and Effluent Treatment

Handling Harsh Byproducts with Durability

Valves manage drainage, neutralization, pH adjustment, and sludge disposal

Must withstand abrasive sludges and corrosive wastewater streams

Ideal Valve Types:
Knife Gate Valves, Diaphragm Valves, Check Valves


Batch and CIP (Clean-in-Place) Systems

High-Cycle Valves for Hygienic & Repetitive Use

Found in fine chemical and pharmaceutical processing

Must be sanitary, easy to clean, and support frequent actuation without failure

Ideal Valve Types:
Sanitary Ball Valves, Aseptic Valves, Pneumatic Actuated Valves


Heat Exchanger and Utility Systems

Flow Regulation for Cooling, Heating, and Steam

Control steam, chilled water, and utility chemicals

Valves should maintain thermal integrity and prevent scaling or blockages

Ideal Valve Types:
Globe Valves, Steam Control Valves, Y-Strainers


Summary Table

Application Area

Key Challenges

Recommended Valves

Acids & Alkalis

Corrosion resistance, leak prevention

Lined Ball, Diaphragm, PTFE Butterfly

Solvents & Flammables

Explosion-proof, fire-safe

Fire-Safe Ball, Plug, Flame Arrestor

Reactors & Polymerization

High temp/pressure, automation

Globe Control, Actuated Ball, High-Pressure

Corrosive Gases

Fugitive emission control

Bellows-Sealed, Relief, PFA Lined

Tank Farms

Anti-corrosion, safe storage

Top Entry Ball, Butterfly, Breather

Effluent & Wastewater

Sludge, chemicals

Knife Gate, Diaphragm, Check

CIP & Batch Systems

Cleanability, high cycles

Sanitary Ball, Aseptic, Pneumatic Valves

Utility & Heat Systems

Steam control, scaling resistance

Globe, Steam Control, Strainers