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About fuel pump

About Specification

Model name/specs of fuel pump

See below link to check model name/basic specifications
modelname_specs_fuelpump

Applicable oil/fuel

  1. Kerosene, fuel oil A, high calory fuel oil A, fuel oil B, fuel oil C can be transferred.
  2. Dirty oil, modified oil, water-mixed oil, gasoline, thinner, volatile oil can NOT be used.

Suction performance of fuel pump

Suction performance of NOP® fuel pump is max. 600mmHg, but use fuel pump within the range of specification.

Allowable nozzle capacity list for fuel pump

See details in below chart:
Allowable nozzle capacity list for fuel pump (Japanese)

Advantage of NOP® fuel pump

  1. Dimention/specs to install NOP® fuel pump is basically the same as other manufacturer's one.
  2. Max. revolution speed is 3,600rpm and start-up torque is smaller than other pump.
  3. Kerosene, fuel oil A can be transferred under the condition of low temperature.
  4. NOP® fuel pump comes with durable and oil-proof shaft seal.
  5. Pressure relief valve has built-in cut off mechanism with high durability.
  6. Designated trochoid® pump is used so that durability is very high.
  7. Thanks to its compact size, the restriction to install is very small and possible to use with single or dual piping.

Allowable ambient temperature

Stand-alone fuel pump must be operated from -20 to 40℃ of ambient temperature. In the case of fuel pump with motor, use it from -10 to 40℃.

Allowable fluid temperature

Kerosene, fuel oil A: Up to 80℃, under the condition of less than 20mm²/sec in kinematic viscosity.

Fuel oil B, fuel oil C: Up to 130℃, under the condition of less than 400mm²/sec in kinematic viscosity.

Applicable range of kinematic viscosity

For low viscosity model: 1.2~20mm2/sec

For high viscosity model: 20~400mm2/sec

Allowable pressure for shaft seal

Allowanble pressure range to protect shaft seal is between -0.08MPa and 0.2MPa.

Recommended suction filter

The capacity of suction filter must be twice as much as the discharged capacity of the pump, and 60-100 mesh is recommended.

Direction of rotation

Standard spec of direction of rotation is clockwise from the view of pump shaft but check details on the product guide to avoid wrong usage.

Adjusting discharge pressure

  1. It is possible to adjust the pressure but do it within the allowable range.
  2. Do not screw the bolt for releasing pressure too much, otherwise it may cause some damage on pumphead.

About Installation

Connection to the drive shaft

  1. Eccentricity between drive shaft and motor shaft must be under ±0.05.
  2. Shaft of the pump must be direclty connected to the one of the motor.
  3. Never hit the shaft of the pump when installing coupling.
  4. Gap between the shaft of pump, coupling, drive shaft must be between 2 and 3mm.

Measure for safety operation

Set the protecter in or near the roter against issues to catch operator's hand by its roter.

Suitable place to install

Do not use in dusty, low/high temperature area. Consult us if you aim to use pump in speciifc circumstance.

Devices to protect facilities of factory

  1. Install the earth leakage breaker, the protector against over-loaded in the motor of pump.
  2. Install ampere tester and pressure sensor to detect pump operating without fluid.
  3. Set the countermeasure for the case of oil leaking because oil seal/packing is not guaranteed to drive forever.

Caution

Before the operation in the first time

  1. Confirm the direction of rotation and inlet/outlet port of fluid.
  2. Confirm fluid is fully filled up to the inlet line, and oil itself is clean.
  3. Confirm each piping is fully fixed.
  4. Confirm inlet/outlet valves are fully opened.

Trial operation

  1. Never drive pump more than 20 seconds with no fluid filled.
  2. Bleed air completely before starting the operation of pump.
  3. Use drain hose when air bleeding.
  4. Air bleeding must be done in the upper position of the pump unit.

Pre-caution for safety operation

Never touch pump and motor while pump runs or just when pump stops.

Basic inspection when starting up

Start-up inspection must be done. Especially check oil-leaking, noise and temperature on the pump unit.

How to clean up strainer

Pre-caution to clean up strainer:

  1. Cover packing must be replaced when cleaning up the strainer.
  2. Never hit the cover by metal hammer when removing it.
    (GD type pump doesn't have built-in strainer)

Contact us if you have something unclear.

If you have any question on NOP® products, please take a look at "FAQ" at the first place.
If you can not find suitable answer, please give your inquiry via "Contact to" or phone-call.

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