• EOGB Filter Element in Kenya, Uganda, Tanzania and EthiopiaEOGB Filter Element in Kenya, Uganda, Tanzania and Ethiopia

    EOGB Filter Element in Kenya, Uganda, Tanzania and Ethiopia

    Specification Details
    Product Name EOGB Filter Element
    Synonyms EOGB Replacement Filter Element
    Filter Type Filter element / media
    Compatibility Fuel, oil, and hydraulic filter housings
    Material High-efficiency filtration media
    Installation Filter housing replacement
    Features Efficient contaminant removal, easy replacement
  • EOGB Fuel Filter 1/4" in Kenya, Uganda, Tanzania and Ethiopia

    EOGB Fuel Filter 1/4″in Kenya, Uganda, Tanzania and Ethiopia

    Specification Details
    Product Name EOGB Fuel Filter 1/4″
    Synonyms EOGB Inline Fuel Filter, 1/4″ Fuel Line Filter
    Filter Type Fuel filter
    Connection Size 1/4 inch
    Application Small engines, generators, vehicles
    Material Metal body with filtration media
    Installation Inline mounting
    Features Compact, durable, efficient filtration
  • Danfoss oil burner nozzle 2.5 × 60° supplied by Opal Industrial Solutions in Kenya and East Africa

    Danfoss Nozzles 2.5 × 60° in Kenya & East Africa

    Specification Details
    Product Name Danfoss Nozzles 2.5 × 60°
    Synonyms Danfoss Oil Burner Nozzle, Fuel Nozzle
    Nozzle Type Oil burner nozzle
    Flow Rate 2.5 GPH
    Spray Angle 60°
    Spray Pattern Solid / Hollow (model dependent)
    Fuel Type Light oil / diesel
    Applications Industrial and commercial burner systems
  • Danfoss oil burner nozzle 2.0 × 60° supplied by Opal Industrial Solutions in Kenya and East Africa

    Danfoss Nozzles 2.0 × 60° in Kenya & East Africa

    Specification Details
    Product Name Danfoss Nozzles 2.0 × 60°
    Synonyms Danfoss Oil Burner Nozzle
    Nozzle Type Precision oil burner nozzle
    Flow Rate 2.0 GPH
    Spray Angle 60°
    Spray Pattern Solid / Hollow
    Fuel Type Light oil / diesel
    Applications Industrial and commercial heating systems
  • EOGB Fuel Filter 3/8" in Kenya, Uganda, Tanzania and Ethiopia

    EOGB Fuel Filter 3/8″ in Kenya, Uganda, Tanzania and Ethiopia

    Specification Details
    Product Name EOGB Fuel Filter 3/8″
    Synonyms EOGB Diesel Filter, Fuel Line Filter 3/8″
    Filter Type Fuel filter
    Connection Size 3/8 inch
    Application Engines, generators, machinery
    Material Metal and filtration media
    Flow Capacity Small to medium engines
    Installation Inline fuel system
    Features Durable, efficient filtration, easy to install
  • Steinen oil burner nozzle 1.5 × 60° supplied by Opal Industrial Solutions in Kenya and East Africa

    Steinen Nozzle 1.5 × 60° in Kenya & East Africa

    Specification Details
    Product Name Steinen Nozzle 1.5 × 60°
    Synonyms Oil Burner Nozzle, Steinen Burner Nozzle
    Nozzle Type Oil burner nozzle
    Flow Rate 1.5 GPH
    Spray Angle 60°
    Spray Pattern Solid / Hollow (model dependent)
    Fuel Type Light oil / diesel
    Application Industrial and commercial burners
  • Steinen oil burner nozzle 3.5 × 60° supplied by Opal Industrial Solutions in Kenya and East Africa

    Steinen Nozzles 3.5 × 60° in Kenya & East Africa

    Specification Details
    Product Name Steinen Nozzles 3.5 × 60°
    Synonyms Oil Burner Nozzle, Steinen Burner Nozzle
    Nozzle Type Precision oil nozzle
    Flow Rate 3.5 GPH
    Spray Angle 60°
    Spray Pattern Solid / Hollow
    Fuel Compatibility Diesel / light oil
    Application Industrial and commercial oil burners
  • Steinen 2.5 × 60° oil burner nozzle supplied by Opal Industrial Solutions in Kenya and East Africa

    Steinen Nozzles 2.5 × 60° in Kenya & East Africa

    Specification Details
    Product Name Steinen Nozzles 2.5 × 60°
    Synonyms Oil Burner Nozzle, Fuel Atomizing Nozzle
    Flow Rate 2.5 GPH
    Spray Angle 60°
    Spray Pattern Solid / Semi-solid
    Fuel Type Diesel / light oil
    Application Oil burner combustion
    Mounting Burner-mounted
    Operation Continuous duty
  • Steinen oil burner nozzles 2.0 × 60 degrees supplied by Opal Industrial Solutions in Kenya and East Africa

    Steinen Nozzles 2.0 × 60° in Kenya & East Africa

    Specification Details
    Product Name Steinen Nozzles 2.0 × 60°
    Synonyms Oil Burner Nozzle, Steinen Burner Nozzle
    Flow Rate 2.0 GPH
    Spray Angle 60°
    Spray Pattern Solid / Hollow
    Fuel Type Light oil / Diesel
    Material Precision-machined metal
    Compatibility Industrial and commercial oil burners
    Applications Boiler and burner heating systems
  • Baite BT 85 industrial oil burner supplied by Opal Industrial Solutions in East AfricaBaite BT 85 industrial oil burner supplied by Opal Industrial Solutions in East Africa

    Baite BT 85 Burner in Kenya, Uganda, Tanzania and Ethiopia

    Specification Details
    Product Name Baite BT 85 Burner
    Synonyms BT85 Industrial Burner, Baite Oil Burner
    Burner Type Industrial oil burner
    Fuel Type Diesel / light oil
    Thermal Output Approx. 850 kW
    Operation Mode One-stage / Two-stage
    Ignition Automatic electronic
    Power Supply 230V / 400V
    Combustion Control Adjustable air-fuel regulation
    Mounting Type Boiler-mounted
    Applications Industrial and commercial heating systems
  • Baite BT14L Diesel burner in Kenya, Uganda, Tanzania and EthiopiaBaite BT14L Diesel burner in Kenya, Uganda, Tanzania and Ethiopia

    Baite BT14L Diesel burner in Kenya, Uganda Tanzania and Ethiopia

    Specification Details
    Product Name Baite BT14L Diesel Burner
    Synonyms BT14L Industrial Diesel Burner, Baite Diesel Burner
    Burner Type Diesel burner
    Fuel Type Diesel
    Thermal Output Approx. 30–60 kW
    Operation One-stage combustion
    Ignition System Automatic electronic ignition
    Power Supply 230V, 50Hz
    Motor Power ~0.11 kW
    Mounting Boiler-mounted
    Applications Industrial boilers, hot water systems, process heating
  • Baite BT20G burner in Kenya, Uganda, Tanzania and EthiopiaBaite BT20G burner in Kenya, Uganda, Tanzania and Ethiopia

    Baite BT20G burner in Kenya, Uganda, Tanzania and Ethiopia

    Specification Details
    Product Name Baite BT20G Burner
    Synonyms BT20G Gas Burner, Baite Industrial Gas Burner
    Burner Type Gas burner
    Fuel Type Natural gas / LPG
    Thermal Output Range Approx. 60–205 kW
    Operation Single-stage combustion
    Power Supply 230V 50Hz
    Motor Power ~0.37 kW
    Mounting Boiler-mounted
    Applications Industrial boilers & thermal systems
  • Baite BT 17G Burner Kenya, Uganda, Tanzania and Ethiopia

    Baite BT 17G Burner in Kenya, Uganda, Tanzania and Ethiopia

    Specification Details
    Product Name Baite BT17G Burner
    Synonyms BT17G Gas Burner, Baite Industrial Gas Burner
    Burner Type Gas burner
    Fuel Type Natural gas / LPG
    Thermal Output Approx. 69–168 kW
    Operation Single-stage
    Ignition System Electronic ignition
    Power Supply 230V, 50Hz
    Mounting Boiler-mounted
    Applications Industrial boilers and heating systems
  • RIELLO RL 70 industrial burner supplied by Opal Industrial Solutions in Kenya, Uganda, Tanzania, and EthiopiaRIELLO RL 70 industrial burner supplied by Opal Industrial Solutions in Kenya, Uganda, Tanzania, and Ethiopia

    RIELLO RL 70 Burner in Kenya, Uganda, Tanzania & Ethiopia

    Specification Details
    Product Name RIELLO RL 70 Burner
    Synonyms RL 70 Industrial Burner, RIELLO Heavy Duty Burner
    Burner Type Industrial oil burner
    Fuel Type Diesel / light oil / heavy fuel oil
    Thermal Output Approx. 70–700 kW
    Operation One-stage / Two-stage
    Ignition System Automatic electronic ignition
    Power Supply 230V / 400V
    Combustion Control Adjustable air-fuel regulation
    Mounting Boiler-mounted
    Applications Large industrial and commercial heating systems
  • BAITE BT 18 industrial burner supplied by Opal Industrial Solutions in Kenya, Uganda, Tanzania, and EthiopiaBaite BT 85 industrial oil burner supplied by Opal Industrial Solutions in East Africa

    BAITE BT 18 Burner in Kenya, Uganda, Tanzania & Ethiopia

    Specification Details
    Product Name BAITE BT 18 Burner
    Synonyms BAITE BT18 Industrial Burner, BT Series Oil Burner
    Burner Type Industrial oil burner
    Fuel Type Diesel / light oil
    Thermal Output Approx. 18–150 kW
    Operation One-stage
    Ignition System Automatic electronic ignition
    Power Supply 230V / 400V
    Combustion Control Adjustable air-fuel regulation
    Mounting Boiler-mounted
    Applications Small and medium industrial heating systems
  • Riello RL 34 industrial burner supplied by Opal Industrial Solutions in Kenya, Uganda, Tanzania, and EthiopiaRiello RL 34 industrial burner supplied by Opal Industrial Solutions in Kenya, Uganda, Tanzania, and Ethiopia

    RIELLO RL 34 Burner in Kenya, Uganda, Tanzania & Ethiopia

    Specification Details
    Product Name Riello RL 34 Burner
    Synonyms Riello RL 34 Industrial Burner, RL Series Oil Burner
    Burner Type Industrial oil burner
    Fuel Type Diesel / light oil
    Thermal Output Approx. 130–400 kW
    Operation One-stage / Two-stage
    Ignition System Automatic electronic ignition
    Power Supply 230V / 400V
    Combustion Control Adjustable air and fuel regulation
    Mounting Boiler-mounted
    Applications Industrial and commercial heating systems
  • Multi-stage high pressure pump supplied by Opal Industrial Solutions in Kenya, Uganda, and TanzaniaMulti-stage high pressure pump supplied by Opal Industrial Solutions in Kenya, Uganda, and Tanzania

    Multi-Stage High Pressure Pumps in Kenya, Uganda, and Tanzania

    Specification Details
    Product Name Multi-Stage High Pressure Pump
    Synonyms Multistage Centrifugal Pump, High Pressure Pump
    Pump Type Centrifugal
    Pump Design Horizontal / Vertical multi-stage
    Drive Type Electric motor driven
    Number of Stages Multiple impellers (model dependent)
    Body Materials Cast iron, Stainless steel
    Impeller Material Stainless steel / Alloy
    Port Sizes 1″, 1.5″, 2″, 3″, 4″
    Flow Rate Model dependent
    Operating Pressure High pressure (application dependent)
    Applications High-pressure fluid transfer
  • Vertical long-shaft sump pump supplied by Opal Industrial Solutions in Kenya, Uganda, and TanzaniaVertical long-shaft sump pump supplied by Opal Industrial Solutions in Kenya, Uganda, and Tanzania

    Vertical Long-Shaft Sump Pumps in Kenya, Uganda, and Tanzania

    Specification Details
    Product Name Vertical Long-Shaft Sump Pump
    Synonyms Vertical Sump Pump, Long Shaft Pump
    Pump Type Centrifugal
    Pump Design Vertical long-shaft
    Drive Type Electric motor driven
    Shaft Length Customizable (application dependent)
    Body Materials Cast iron, Stainless steel, Alloy steel
    Impeller Type Open / Semi-open
    Port Sizes 2″, 3″, 4″, 6″
    Flow Rate Model dependent
    Operating Temperature Application dependent
    Applications Sump drainage and fluid transfer
  • Riello G20 Kenya, Uganda, TanzaniaRiello G20 Kenya, Uganda, Tanzania

    Riello G20 Burner in Kenya, Uganda, Tanzania

    Specification Details
    Product Name Riello G20 Burner
    Synonyms Riello G20 Industrial Burner, G-Series Heavy Duty Burner
    Burner Type Industrial oil burner
    Fuel Type Diesel / light oil / heavy fuel oil
    Thermal Output Approx. 200–2000 kW
    Operation One-stage / Two-stage
    Ignition System Automatic electronic ignition
    Power Supply 230V / 400V
    Combustion Control Adjustable air regulation
    Mounting Boiler-mounted
    Applications Large industrial and commercial heating systems
  • Polypropylene monoblock pump supplied by Opal Industrial Solutions in Kenya, Uganda, and TanzaniaPolypropylene monoblock pump supplied by Opal Industrial Solutions in Kenya, Uganda, and Tanzania

    Polypropylene Monoblock Pumps in Kenya, Uganda, and Tanzania

    Specification Details
    Product Name Polypropylene Monoblock Pump
    Synonyms PP Monoblock Pump, Chemical Monoblock Pump
    Pump Type Centrifugal
    Pump Design Single-stage monoblock
    Drive Type Electric motor driven
    Body Material Polypropylene (PP)
    Impeller Material Polypropylene
    Port Sizes 1″, 1.5″, 2″, 3″
    Flow Rate Model dependent
    Operating Temperature Application dependent
  • Submersible sewage pump supplied by Opal Industrial Solutions in Kenya, Uganda, and TanzaniaSubmersible sewage pump supplied by Opal Industrial Solutions in Kenya, Uganda, and Tanzania

    Submersible Sewage Pumps in Kenya, Uganda, and Tanzania

    Specification Details
    Product Name Submersible Sewage Pump
    Synonyms Sewage Pump, Wastewater Submersible Pump
    Pump Type Centrifugal
    Pump Design Single-stage submersible
    Drive Type Electric motor driven
    Body Materials Cast iron / Stainless steel
    Impeller Type Vortex / Channel / Cutter
    Discharge Sizes 1.5″, 2″, 3″, 4″, 6″
    Flow Rate Model dependent
    Operating Temperature Application dependent
  • Mud monoblock pump supplied by Opal Industrial Solutions in Kenya, Uganda, and Tanzania

    Mud Monoblock Pumps in Kenya, Uganda, and Tanzania

    Specification Details
    Product Name Mud Monoblock Pump
    Synonyms Mud Pump, Slurry Monoblock Pump
    Pump Type Centrifugal
    Pump Design Single-stage monoblock
    Drive Type Electric motor driven
    Body Materials Cast iron
    Impeller Type Semi-open / Open
    Suction / Discharge Sizes 1″, 1.5″, 2″, 3″
    Flow Rate Model dependent
    Operating Pressure Application dependent
  • Multi-stage centrifugal pump supplied by Opal Industrial Solutions in Kenya, Uganda, and TanzaniaMulti-stage centrifugal pump supplied by Opal Industrial Solutions in Kenya, Uganda, and Tanzania

    Multi-Stage Centrifugal Pumps in Kenya, Uganda, and Tanzania

    Specification Details
    Product Name Multi-Stage Centrifugal Pump
    Synonyms High-Pressure Pump, Multi-Impeller Pump
    Pump Type Centrifugal
    Pump Design Multi-stage, horizontal / vertical
    Drive Type Electric motor driven
    Body Materials Cast iron, Stainless steel
    Seal Type Mechanical seal
    Suction / Discharge Sizes 1″, 1.5″, 2″, 3″, 4″
    Flow Rate Model dependent
    Operating Pressure High-pressure, application dependent
  • Fabricated Pumps supplied by Opal Industrial Solutions in Kenya, Uganda, and Tanzania

    Fabricated Pumps in Kenya, Uganda, and Tanzania

    Specification Details
    Product Name Fabricated Pump
    Synonyms Custom Industrial Pump, Engineered Pump
    Pump Type Centrifugal / Positive displacement (application dependent)
    Pump Design Custom fabricated construction
    Drive Type Electric motor driven
    Body Materials Carbon steel, Stainless steel, Alloy steel
    Seal Type Mechanical seal / Packed gland
    Port Sizes Application dependent
    Flow Rate Project-specific
    Operating Pressure Application dependent
    Applications Industrial fluid transfer and process circulation
  • Submersible dewatering pump supplied by Opal Industrial Solutions in Kenya, Uganda, and TanzaniaSubmersible dewatering pump supplied by Opal Industrial Solutions in Kenya, Uganda, and Tanzania

    Submersible Dewatering Pumps in Kenya, Uganda, and Tanzania

    Specification Details
    Product Name Submersible Dewatering Pump
    Synonyms Dewatering Pump, Submersible Drainage Pump
    Pump Type Submersible centrifugal
    Pump Design Single-stage / Multi-stage (model dependent)
    Drive Type Electric motor driven
    Body Materials Cast iron, Stainless steel
    Seal Type Mechanical seal
    Discharge Sizes 1″, 2″, 3″, 4″, 6″
    Flow Rate Model dependent
    Operating Head Application dependent
  • Barrel pumps supplied by Opal Industrial Solutions in Kenya, Uganda, and TanzaniaBarrel pumps supplied by Opal Industrial Solutions in Kenya, Uganda, and Tanzania

    Barrel Pumps in Kenya, Uganda, and Tanzania

    Specification Details
    Product Name Barrel Pump
    Synonyms Drum Pump, IBC Pump
    Pump Type Centrifugal / Positive displacement
    Pump Design Vertical immersion
    Drive Type Manual / Electric / Air operated
    Body Materials Polypropylene, Aluminum, Stainless steel
    Tube Length Standard drum and IBC lengths
    Port Sizes Model dependent
    Flow Rate Model dependent
    Operating Temperature Application dependent
  • Industrial screw pumps supplied by Opal Industrial Solutions in Kenya, Uganda, and TanzaniaIndustrial screw pumps supplied by Opal Industrial Solutions in Kenya, Uganda, and Tanzania

    Screw Pumps in Kenya, Uganda, and Tanzania

    Specification Details
    Product Name Screw Pump
    Synonyms Progressive Cavity Pump, Helical Rotor Pump
    Pump Type Positive displacement
    Pump Design Single screw / Twin screw
    Drive Type Electric motor driven
    Body Materials Cast iron, Stainless steel
    Rotor / Screw Material Hardened steel / Stainless steel
    Stator Material Nitrile / EPDM (model dependent)
    Port Sizes 1″, 1.5″, 2″, 3″, 4″
    Flow Rate Model dependent
    Operating Pressure Application dependent
    Applications Viscous and continuous fluid transfer
  • Magnetic sealless pump supplied by Opal Industrial Solutions in Kenya, Uganda, and TanzaniaMagnetic sealless pump supplied by Opal Industrial Solutions in Kenya, Uganda, and Tanzania

    Magnetic Sealless Pumps in Kenya, Uganda, and Tanzania

    Specification Details
    Product Name Magnetic Sealless Pump
    Synonyms Mag-Drive Pump, Seal-less Pump
    Pump Type Centrifugal
    Pump Design Single-stage, magnetic drive
    Drive Type Electric motor driven
    Body Materials Stainless steel, Alloy steel, PTFE-lined
    Impeller Type Magnetic coupled
    Flow Rate Model dependent
    Operating Pressure Application dependent
    Operating Temperature Application dependent
    Applications Leak-free chemical transfer and process circulation
  • Sewage dewatering pumps supplied by Opal Industrial Solutions in Kenya, Uganda, and TanzaniaSewage dewatering pumps supplied by Opal Industrial Solutions in Kenya, Uganda, and Tanzania

    Sewage Dewatering Pumps in Kenya, Uganda, and Tanzania

    Specification Details
    Product Name Sewage Dewatering Pump
    Synonyms Sewage Pump, Wastewater Pump, Sludge Pump
    Pump Type Centrifugal
    Pump Design Submersible / Non-submersible
    Drive Type Electric motor driven
    Body Materials Cast iron / Stainless steel
    Impeller Type Vortex / Channel / Non-clog
    Port Sizes 2″, 3″, 4″, 6″
    Flow Rate Model dependent
    Operating Temperature Application dependent
    Applications Sewage and wastewater dewatering
  • Dosing metering pump supplied by Opal Industrial Solutions in Kenya, Uganda, and TanzaniaDosing metering pump supplied by Opal Industrial Solutions in Kenya, Uganda, and Tanzania

    Dosing Metering Pumps in Kenya, Uganda, and Tanzania

    Specification Details
    Product Name Dosing Metering Pump
    Synonyms Chemical Dosing Pump, Metering Pump
    Pump Type Positive displacement
    Pump Design Diaphragm / Plunger (model dependent)
    Drive Type Electric motor driven
    Control Type Manual / Digital / Automated
    Body Materials PVC, PP, Stainless steel
    Diaphragm Materials PTFE, EPDM
    Flow Rate Adjustable, model dependent
    Operating Pressure Application dependent
    Applications Chemical dosing and injection
  • Riello G10 Burner Kenya, Uganda, Tanzania and EthiopiaRiello G10 Burner Kenya, Uganda, Tanzania and Ethiopia

    Riello G10 Burner Kenya, Uganda, Tanzania and Ethiopia

    Specification Details
    Product Name Riello G10 Burner
    Synonyms Riello G10 Oil Burner, Riello G-Series Burner
    Burner Type Oil burner
    Fuel Type Diesel / light oil
    Thermal Output Approx. 180–670 kW
    Operation One-stage / Two-stage
    Ignition System Automatic electronic ignition
    Power Supply 230V / 400V
    Combustion Control Adjustable air regulation
    Mounting Boiler-mounted
    Applications Industrial and commercial heating systems
  • Riello G5 Burner Kenya, Uganda, Tanzania and EthiopiaRiello G5 Burner Kenya, Uganda, Tanzania and Ethiopia

    Riello G5 Burner Kenya, Uganda, Tanzania and Ethiopia

    Specification Details
    Product Name Riello G5 Burner
    Synonyms Riello G5 Light Oil Burner, Riello G-Series Burner
    Burner Type Light oil burner
    Fuel Type Diesel / light oil
    Thermal Output Approx. 95–220 kW
    Operation One-stage / Two-stage
    Ignition System Automatic electronic ignition
    Power Supply 230V / 400V
    Combustion Control Adjustable air regulation
    Mounting Boiler-mounted
    Applications Commercial and industrial heating systems
  • Riello G3 Burner in Kenya, Uganda, Tanzania and EthiopiaRiello G3 Burner in Kenya, Uganda, Tanzania and Ethiopia

    Riello G3 Burner in Kenya, Uganda, Tanzania and Ethiopia

    Specification Details
    Product Name Riello G3 Burner
    Synonyms Riello G3 Light Oil Burner, Riello G-Series Burner
    Burner Type Light oil burner
    Fuel Type Diesel / light oil
    Thermal Output Approx. 65–140 kW
    Operation One-stage
    Ignition System Automatic electronic ignition
    Power Supply 230V
    Combustion Control Adjustable air regulation
    Mounting Boiler-mounted
    Applications
  • Chemical process pump supplied by Opal Industrial Solutions in Kenya, Uganda, and Tanzania

    Chemical Process Pumps in Kenya, Uganda, and Tanzania

    Specification Details
    Product Name Chemical Process Pump
    Synonyms Chemical Transfer Pump, Process Pump
    Pump Type Centrifugal
    Pump Design Single-stage centrifugal
    Drive Type Electric motor driven
    Body Materials Stainless steel, Alloy steel, Polypropylene
    Seal Type Mechanical seal / Magnetic drive (optional)
    Port Sizes 1″, 1.5″, 2″, 3″, 4″, 6″
    Flow Rate Model dependent
    Operating Temperature Application dependent
    Applications Chemical transfer and process circulation
  • Rotary gear pumps supplied by Opal Industrial Solutions in Kenya, Uganda, and TanzaniaRotary gear pumps supplied by Opal Industrial Solutions in Kenya, Uganda, and Tanzania

    Rotary Gear Pumps in Kenya, Uganda, and Tanzania

    Specification Details
    Product Name Rotary Gear Pumps
    Synonyms External Gear Pump, Industrial Gear Pump
    Pump Type Positive displacement
    Gear Design External gear
    Drive Type Electric motor / Engine driven
    Body Materials Cast iron, Carbon steel, Stainless steel
    Seal Type Mechanical seal / Packing
    Port Sizes ½″, ¾″, 1″, 1.5″, 2″, 3″, 4″
    Flow Rate Model dependent
    Operating Pressure Application dependent
    Applications Transfer of clean and viscous fluids