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Centrifugal Pumps

Centrifugal pumps are one of the key products of Naniwa Pump Mfg. We produce up to 12,000 of these pumps annually. They are designed primarily for ships, but also have an extensive track record in pumps for use on land . We offer a wide-ranging lineup, from large pumps for clean water, sea water, and ballast to small and mid-sized pumps such as drinking water and boiler feedwater pumps.

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  1. Model Capacity
    (m3/h)    		 Total Head
    (m)    		 Type Handled Fluid
    FEV 25–600 13–59 Vertical Fresh Water/Sea Water
    FEWV 300–3000 13–45 Vertical Fresh Water/Sea Water
    FBV 30–500 15–42 Vertical Fresh Water/Sea Water
    FBWV 300–3000 13–52 Vertical Fresh Water/Sea Water
    FE2V-E 40–600 20–126 Vertical Fresh Water/Sea Water
    FB2V 40–500 20–170 Vertical Fresh Water/Sea Water
    FBCV 60–800 25–115 Vertical Fresh Water/Sea Water
    FFV-E 20–120 40–100 Vertical/High Speed Fresh Water/Sea Water
    FGV-E 40–300 20–100 Vertical/High Speed Fresh Water/Sea Water
    FGWV 100–600 30–155 Vertical/High Speed Fresh Water/Sea Water
    FDDV 2–150 18–47 Vertical Fresh Water/Sea Water/Condensate Water
    FEDV-E 2–150 18–47 Vertical Fresh Water/Sea Water/Condensate Water
    2FDDV 2–130 18–115 Vertical Fresh Water/Sea Water/Condensate Water
    TOM 80–2000 0.3–1.05
    MPa    		 Vertical Lublicating Oil
    TOMG 0.5–1800 20–150 Vertical Lublicating Oil
    USV 100–2000 13–45 Vertical/Bottom Suction Fresh Water/Sea Water
    FCDV 1000–15000 4–24 Vertical Fresh Water/Sea Water
    SHV 25–180 20–100 Vertical/Self-Priming Fresh Water/Sea Water
    FVC 2–42 2–70 Vertical Fresh Water/Sea Water
    C 500–12000 50–200 Vertical/Horizontal Fresh Water/Sea Water
    DV 700–5000 15–45 Vertical Fresh Water/Sea Water
    BHR 2–80 4–88 Horizontal Fresh Water/Sea Water
    BHD 2–17 10–59 Horizontal Fresh Water/Sea Water
    CRD 7–150 10–45 Horizontal Fresh Water/Sea Water
    SHR 2–80 10–67 Horizontal/Self-Priming Fresh Water/Sea Water
    EB2H 2–130 60–300 Horizontal Boiler Feed Water
    EB4H 2.5–150 120–400 Horizontal Boiler Feed Water
    BBH 2–130 15–85 Horizontal Boiler Circ. Water
    EKH 2–7.5 60–120 Horizontal Boiler Feed Water
    FB2E 200–700 50–180 Horizontal Fresh Water/Sea Water
    BHFR(L) 30–300 40–200 Horizontal Fresh Water/Sea Water
    FBW 300–3000 13–45 Horizontal Fresh Water/Sea Water

Rotary Gear Pumps

Naniwa Pump Manufacturing’s gear and screw pumps are proven in service for applications such as fuel and lubricating oil transfer. They are renowned for their durability and dependability, and our recent addition of gear and screw pumps for low-viscosity to our lineup has expanded options for users.

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  1. Model Capacity
    (m3/h)    		 Total Head
    (Mpa)    		 Type Handled Fluid
    ALG 1–125 0.2–2.5 Horizontal Lubricating Oil/Fuel Oil
    ALGV 20–125 0.2–1.5 Vertical Lubricating Oil/Fuel Oil
    TLG 0.1–3 0.2–1.6 Horizontal Lubricating Oil/Fuel Oil

1 Rotor Screw Pumps

Single screw pumps are made up of three components: a bearing housing component within the drive shaft that turns with the rotational force received from the motor; a suction casing component with a coupling rod that transmits rotation to the rotor unit; and the main pump body, which is comprised of the rotor and stator. The drive shaft ball bearings can withstand temperatures of up to 130°C.

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  1. Model Capacity
    (m3/h)    		 Total Pressure
    (MPa)    		 Type Handled Fluid
    AE1N/
    AE1E/
    AHN    		 0.1–200 0.1–0.6 Horizontal Bilge/Sludge
    AE2E 80–100 0.1–0.6 Horizontal Bilge/Sludge

2 Spindle Screw Pumps

Naniwa Pump Manufacturing offers two types of twin screw pumps. One uses an internal bearing system in which the lubrication is performed by the pump liquid for the bearings and timing gears. The other features an external bearing system that lubricates using oil.

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  1. Model Capacity
    (m3/h)    		 Total Pressure
    (MPa)    		 Type Handled Fluid
    ALS 30–1000 0.2–1.6 Horizontal/Internal Bearing Lubricating Oil/Fuel Oil
    ALSV 30–1000 0.2–1.6 Vertical/Internal Bearing Lubricating Oil/Fuel Oil
    AHS 30–1000 0.2–1.6 Horizontal/External Bearing Lubricating Oil/Fuel Oil
    AHSV 30–1000 0.2–1.6 Vertical/External Bearing Lubricating Oil/Fuel Oil

3 Spindle Screw Pumps

The triple screw pump features three spindles. One is a double-thread screw-driving spindle, and the others are double-thread screw-driven spindles. These turn within the insert portion of the casing unit with absolutely no rotational gap, so the liquid is continuously discharged. For marine engine room applications, this can primarily be used as low-viscosity fuel oil pumps.

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  1. Model Capacity
    (m3/h)    		 Total Pressure
    (MPa)    		 Type Handled Fluid
    ALT 1.5–125 0.2–0.7 Horizontal Lubricating Oil/Fuel Oil
    ALTV 1.5–125 0.2–0.7 Vertical Lubricating Oil/Fuel Oil
    SNH 1–300 –2.5 Horizontal Lubricating Oil/Fuel Oil
    SNS 1–300 –2.5 Vertical Lubricating Oil/Fuel Oil

Piston Pumps

Naniwa Pump Manufacturing’s piston pumps are double-acting pumps with one or two cylinders. They are optimized for applications such as marine bilge and oil transfer, and offer high efficiency and reduced fluctuation of discharge pressure.

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  1. Model Capacity
    (m3/h)    		 Total Head
    (m)    		 Type Handled Fluid
    HP 0.5–5 10–80 Horizontal Bilge/Sludge
    2VP 2.5–200 20–80 Vertical Bilge/Sludge
    WOV 30–450 10-150 Vertical/Steam Driven Crude Oil

Cargo Pumping System

Naniwa Pump Manufacturing’s cargo pumps have a long history dating back to the establishment in 1974 of Naniwa-Eureka Co., Ltd., a joint venture with Norwegian company Kvaerner-Eureka A.S. And in cargo pump turbines, we have achieved significant successes since our technical tie-up with Mitsubishi Heavy Industries’ Takasago Machinery Works.

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  1. Cargo Pumping System

    Model Capacity
    (m3/h)    		 Total Head
    (m)    		 Type Handled Fluid
    C 500–12000 50–200 Vertical/Horizontal Crude Oil/Product Oil
    AHS 30–1000 20–160 Horizontal/External Bearing Crude Oil/Product Oil
    AHSV 30–1000 20–160 Vertical/External Bearing Crude Oil/Product Oil
    DV 700–5000 15–45 Vertical Ballast Water
    WOV 30–450 10–150 Vertical/Steam Driven Stripping

  2. Steam Turbine for Cargo Pumps

    Model Max. Output
    (kW)    		 Max. Speed
    (min-1)    		 Type
    ENV 600–5000 12500 Vertical/Single Stage
    ERV 1500 11000 Vertical/Two Stage
    CNV 3000 8500 Vertical/Thrree Stage

Other Products & System

Naniwa Pump Manufacturing can also supply products that come with marine engine room pumps as a unit.

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  1. Central Priming System

    Model Max. Air Volume
    (m3/h)    		 Max. Vacuum
    (mmHg)    		 Vacuum Pump Type
    UV 640 650 Horizontal/Water Ring

  2. Vacuum Pump Unit

    Model Extraction
    (m3/h)    		 Vacuum
    (mmHg)    		 Vacuum Pump Type
    UNE 2 720 Horizontal/Water Ring

  3. Self-Priming Unit

    Model Max. Air Volume
    (m3/h)    		 Max. Vacuum
    (mmHg)    		 Type
    VK 1–200 700 Horizontal/Eccentric Vane
    PMC - - Air Ejector

  4. Hydropore Tank Unit

    Model Tank Capacity
    (m3)    		 Pump Capacity
    (m3/h)    		 Pump Total Head
    (m)
    UH 0.2–3.0 3–40 20–80

  5. Inverter Control System

    Model Speed Control Range
    (%)    		 Motor power range
    (kW)    		 Application
    NEO-ME 50–100 –280kW M/E Cooing Water Pump