Industries | BZVF

Valves Built for Real-World Demands

We build valves that work where it matters most. From Oil & Gas to Chemical & Petrochemical, Mining & Metals, Power Generation, Waterworks, and Municipal Pipe Networks—our valves are made to handle the pressure (literally).

Whether it's tough slurries, corrosive chemicals, high-pressure steam, or clean water, our products are designed to keep your systems running smoothly, safely, and efficiently

Oil & Gas

1. Hydrocarbons (Liquid & Gaseous)

Media include crude oil (sweet and sour)
Refined products (diesel, gasoline, jet fuel, kerosene)
Condensates (natural gas liquids)
LPG (propane, butane)
Natural gas (methane, ethane)
Naphtha (light and heavy).

2. Water-Based Media

Common media are:

Produced water
Injection water (treated seawater or freshwater)
Seawater, and boiler feed water used in large-scale thermal and process systems.

3. Thermal Media

Includes:

steam (saturated and superheated) and heat transfer fluids, typically used in high-capacity heating and energy systems.

4. Cryogenic Media

Large-scale cryogenic flows include:

LNG (methane at -162°C)
LPG (liquefied propane/butane)
liquid nitrogen, and liquid ethylene

All requiring specialized large-bore valves for flow control and safety.

5. Sour & Acidic Media

Sour gas (H₂S-rich)
CO₂-rich gas
Acidizing fluids like hydrochloric acid and acetic acid

Typically handled in process pipelines and treatment facilities with corrosion-resistant materials.

Chemical & Petrochemical

1. Acids

Includes strong and often corrosive acids used in bulk processes, such as:

Sulfuric acid (H₂SO₄)
Hydrochloric acid (HCl)
Nitric acid (HNO₃)
Phosphoric acid (H₃PO₄)

2. Alkalis & Caustics

Used widely in neutralization and pH control systems:

Sodium hydroxide (NaOH)
Potassium hydroxide (KOH)
Ammonia solutions (NH₃)

3. Hydrocarbons & Derivatives

Found in refining and petrochemical feedstock or intermediate flows:

Benzene, toluene, xylene (BTX)
Ethylene, propylene, butadiene
Naphtha, gas oils, reformates

4. High-Temperature Media

Used in cracking, reforming, or heat-intensive chemical processes:

Thermal oil circuits (e.g., Dowtherm, Therminol)
Superheated process steam
Hot hydrocarbons and vapors

5. Cryogenic & Refrigerated Media

Common in petrochemical storage and transport:

Liquid ethylene (-104°C)
Liquid propylene (-47°C)
Refrigerated ammonia or butane

6. Slurries & Viscous Chemicals

Used in polymer, pigment, or catalyst production:

Polymer slurry
Titanium dioxide slurry
Catalyst suspensions

7. Water & Utility Media

Extensive use in support and processing systems:

Cooling water (open/closed loop)
Deionized or process water
Firewater and flushing systems

Mining & Metals

1. Slurries (Abrasive & Dense)

Heavily loaded with solids and requiring wear-resistant valves:

Ore slurries (copper, gold, nickel, iron, etc.)
Tailings slurry
Phosphogypsum slurry
Bauxite residue (red mud)
Lime slurry
Flotation concentrate and tailings

2. Process Water

Essential for mineral transport, separation, and cleaning:

Raw water
Reclaim/recycled water
Process water with suspended solids or reagents
High-pressure water for jetting or hydraulic transport

3. Acids, Alkalis & Fluoride-Containing Media

Used in leaching, refining, and pH control—often highly corrosive:

Sulfuric acid (H₂SO₄) – for heap and tank leaching
Hydrochloric acid (HCl) – for rare earths and specialty metals
Sodium hydroxide (NaOH) – alumina refining
Sodium cyanide – gold extraction
Fluoride-rich solutions – in phosphate rock processing, apatite leaching, and rare earth element recovery (can include HF, NaF, CaF₂, or fluosilicic acid)

4. Gases & Aeration Flows (High Volume)

Used for flotation and oxidation:

Plant air and blower systems
Oxygen-enriched air for leaching
Flotation air injection

5. Steam & Heated Fluids

Used in thermal treatment and pressure leaching:

Process steam
Hot slurry or chemical solutions
Heat transfer media in refining circuits

6. Waste & Effluent Streams

Final stage media with high solid or chemical content:

Thickener underflow
Tailings dam decant water
Chemical-rich wastewater
Sludge and filtrate from dewatering systems

Power Generation

1. Steam (High-Temperature / High-Pressure)

Critical in most thermal power systems for energy conversion and heat transfer:

Saturated steam
Superheated steam
Low-pressure turbine exhaust steam

2. Cooling Water

Used in condensers, heat exchangers, and cooling towers:

Raw cooling water (river, seawater, or lake)
Circulated cooling water (CCW)
Chilled water in auxiliary systems

3. Boiler Feedwater & Condensate

High-purity water cycles within boilers and turbines:

Deaerated boiler feedwater
Condensate return
Make-up water for closed loops

4. Flue Gases & Air

Key to combustion, emissions control, and heat recovery:

Flue gas (post-combustion) – may contain SO₂, NOₓ
Combustion air – primary and secondary
Gas streams in FGD (Flue Gas Desulfurization) units
Air for ash handling or fluidized bed combustion

5. Fuel & Process Fluids

Used in conventional and combined-cycle power plants:

Fuel oil (light and heavy)
Natural gas
Diesel backup systems
Heat transfer oils

6. Renewable & Nuclear-Specific Media

Molten salts – in concentrated solar power (CSP)
Heavy water / light water – in nuclear reactors
Radioactive cooling fluids (special valves required)

Waterworks, and Municipal Pipe Networks

1. Potable Water

Treated drinking water distributed through transmission and distribution mains:

Chlorinated potable water
Fluoridated water
UV-treated or ozonated water

Requires valves with approved materials for drinking water safety.

2. Raw Water

Untreated water from natural sources used for treatment or industrial use:

River water
Lake/reservoir water
Groundwater/well water

Often contains sediments; valves must be designed to handle low to moderate solids.

3. Treated Wastewater & Reuse Water

Effluent from municipal treatment plants reused or discharged:

Secondary/tertiary treated wastewater
Reclaimed water for irrigation or industrial reuse
Chlorinated or UV-disinfected effluent

4. Stormwater & Drainage

Collected runoff requiring large-bore valves for flow control:

Rainwater runoff
Combined sewer overflow (CSO)
Drainage water in flood management systems

5. Sewage & Sludge (Gravity or Pressurized)

Heavier media transported through large interceptors or force mains:

Raw municipal sewage
Activated sludge
Return activated sludge (RAS)
Waste activated sludge (WAS)

Valves must resist biological buildup, gas release (H₂S), and abrasive solids.