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Leakless AGP liquid ammonia pump with its flange-mounted motor

Industrial pumps and mechanical seals · Mumbai, since 1980

Pumps for the liquids that eat ordinary pumps

Acids, solvents, slurries and liquid ammonia, from −60 to 450 °C. We make the pump and its mechanical seal, and test every pump before dispatch.

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Pump series
12
Seal types
13
Flow, up to
500 m³/h
Liquid temperature
−60 to 450 °C

Choose the pump by the liquid it moves

Plastic and lined pumps for acids, metallic pumps up to 450 °C, sealless and glandless pumps where nothing may leak, and a pump built for liquid ammonia. Twelve series, each made and tested in Mumbai.

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  • Polypropylene centrifugal pump with a white moulded casing on a blue bearing frame

    PP and UHMW-PE centrifugal pump

    Moulded plastic casing for acids, pickling and effluent.

    Max flow
    300 m³/h
    Max head
    80 m
    Temp.
    Up to 85 °C
  • PTFE-lined back pull-out pump with a dark lined casing on a blue bearing frame

    PVDF and PTFE-lined pump

    Lined casing for highly corrosive acids up to 150 °C.

    Max flow
    150 m³/h
    Max head
    80 m
    Temp.
    −60 to 150 °C
  • Metallic back pull-out centrifugal pump in blue with its bearing frame

    Metallic back pull-out pump

    Alloy pumps to ISO 2858 and DIN 24256, up to 450 °C.

    Max flow
    500 m³/h
    Max head
    200 m
    Temp.
    Up to 450 °C
  • Self-priming pump with a tall priming chamber on the suction side

    Self-priming chamber pump

    Primes itself to empty pits, drums and underground tanks.

    Max flow
    150 m³/h
    Max head
    100 m
    Temp.
    −20 to 150 °C
  • Monoblock pump with a white casing joined directly to a blue motor

    Monoblock pump

    Pump and motor on one shaft, for tight spaces.

    Max flow
    500 m³/h
    Max head
    100 m
    Temp.
    −20 to 150 °C
  • Multistage self-priming pump coupled to a green motor on a steel base

    Multistage self-priming pump

    Lifts up to 6 m with no foot valve, for solvents and oil.

    Max flow
    100 m³/h
    Max head
    200 m
    Temp.
    Up to 150 °C
  • Blue submersible dewatering pump with a lifting eye and power cable

    Submersible dewatering pump

    Runs fully submerged to drain tanks, pits and sumps.

    Max flow
    200 m³/h
    Max head
    100 m
    Temp.
    Up to 150 °C
  • Vertical submerged sump pump with a long column under its mounting plate

    Vertical sump pump

    Hangs in the tank, up to 4.5 m long, with no seal or gland.

    Max flow
    100 m³/h
    Max head
    100 m
    Temp.
    −20 to 150 °C
  • Vertical sealless glandless pump with white flanges and a grey motor

    Vertical sealless glandless pump

    No seal or gland: any seepage flows back to the tank.

    Max flow
    200 m³/h
    Max head
    150 m
    Temp.
    Up to 150 °C
  • Leakless AGP liquid ammonia pump with its flange-mounted motor

    Liquid ammonia pump

    Circulates liquid ammonia in cold stores and ice plants.

    Max flow
    150 m³/h
    Max head
    15 kg/cm²
    Temp.
    −60 to −10 °C
  • Blue canned motor pump on a steel base

    Canned motor pump

    Motor and pump sealed in one casing, with no shaft seal.

    Max flow
    100 m³/h
    Max head
    100 m
    Temp.
    Up to 150 °C
  • Blue magnetic drive sealless pump with a close-coupled motor

    Magnetic drive sealless pump

    Magnet-driven with no shaft seal, for chemical transfer.

    Max flow
    25 m³/h
    Max head
    30 m
    Temp.
    Up to 150 °C

The seal is where pumps leak, so we make our own

Mechanical seals for pumps, agitators and mixers, from −50 to 350 °C and up to 80 bar. Fitted to our own pumps and sold on their own.

See all mechanical seals
  • Multi-spring pusher seal with a carbon face and stainless body

    Multi-spring seal

    Balanced or unbalanced, for acids, alkalis and slurries.

    Temp.
    −45 to 125 °C
    Pressure
    Up to 40 bar
    Shaft
    12 to 200 mm
  • Single-spring seal with one large stainless spring

    Single-spring seal

    For viscous, abrasive and crystallising liquids.

    Temp.
    −10 to 350 °C
    Pressure
    Up to 20 bar
    Shaft
    12 to 150 mm
  • Slurry seal with a heavy stainless sleeve

    Slurry seal

    For sewage, paper pulp, sugar and effluent with solids.

    Temp.
    −50 to 250 °C
    Pressure
    Up to 25 bar
    Shaft
    12 to 150 mm
  • Cartridge seal with gland plate, shown assembled and in section

    Cartridge seal

    Supplied as one unit for solvents, fumes and vacuum.

    Temp.
    −45 to 250 °C
    Pressure
    Up to 50 bar
    Shaft
    16 to 250 mm
  • PTFE bellow seal with a white bellow and stainless clamp ring

    PTFE bellow seal

    PTFE bellow for corrosive acids, alkalis and solvents.

    Temp.
    10 to 125 °C
    Pressure
    Up to 5 bar
    Shaft
    12 to 100 mm
  • Agitator seal cartridge with a flanged mounting plate

    Agitator seal

    For mixers, dryers and reactor vessels under pressure.

    Temp.
    −50 to 350 °C
    Pressure
    Up to 80 bar
    Shaft
    25 to 400 mm
  • Metal bellow seal with a welded stainless bellow

    Metal bellow seal

    For thermic fluid, petroleum and refinery service.

    Temp.
    −45 to 950 °C
    Pressure
    Up to 25 bar
    Shaft
    12 to 150 mm
  • Thermosyphon vessel with pressure gauge and level glass

    Thermosyphon system

    Cools the seal and pressurises its buffer chamber.

    Temp.
    −10 to 350 °C
    Pressure
    Up to 25 bar
    Vessel
    5 to 30 L
A Leakless machinist working at a lathe in the Malad worksAn engineer recording readings at the pump test panelA finished Leakless pump coupled to its motor on the test bed

Made in our own works in Mumbai, since 1980

Leakless (India) Engineering has built industrial pumps in Malad, Mumbai, since 1980, and our team supports them on site after installation. Three steps stay under our own roof:

  • Machining and assembly

    Pumps are machined and assembled in our own workshop.

  • Mechanical seal making

    We make seals as well as pumps, so the seal suits the pump.

  • Pressure and run tests

    Each finished pump is run on our test bed before dispatch.

About Leakless

Every pump runs on our test bed before it ships

Before dispatch, each assembled pump is pressure-tested, then run on a suitable motor while eight readings are recorded. Materials come with test certificates from outside laboratories.

Readings on every run
8
Casing test, × shut-off
1.5×
Parts pressure-tested
3

Hydraulic readings

  • Discharge head
  • Flow rate
  • Power drawn
  • Speed (rpm)

Mechanical readings

  • Vibration
  • Noise level
  • Bearing housing temperature
  • Mechanical seal leakage

Pressure and material

  • Seal under hydraulic pressure
  • Volute casing
  • Casing cover
  • Lab certificates for material

Standards and registration

  • ISO 9001 quality system
  • ISO 2858 / DIN 24256 pumps
  • Registered with NSIC and MSME
  • SMERA rated, D-U-N-S listed

Built for the duty, industry by industry

An acid pickling line, an ammonia cold store and a refinery each need a different pump and seal. These are the ones Leakless supplies for each.

Also supplied toFertilizer plants, drugs and pharmaceuticals, dyes and pigments, food processing, detergents and caustics, breweries, solvent plants, air conditioning, chilling plants, textile mills, steel plants, filter press units.

Tell us the liquid, we’ll match the pump

Send the duty and our team will suggest the pump or mechanical seal that suits it, with a quote. We reply within one working day.

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