Flow rate (at atm. pressure)

Up to

4.4

l/min

Pressure head

60

mWg

Suction height, self-priming

3

mWg

KNF FP 1.400
Low-Pulsation Diaphragm Liquid Pump

KNF “Smooth Flow” series provides extraordinarily low pulsation comparable to gear and centrifugal pumps while offering benefits from diaphragm pumps.

The FP 1.400 is a self-priming, dry-run safe liquid pump delivering a flow rate of up to 4.4 l/min with outstanding chemical resistance and the ability to handle sensitive media gently.

The FP 1.400 supports adjustable flow rates along with excellent linearity. Its BLDC motor can be controlled via PWM-inverse or Vctrl.

Other notable features include continuous operation even at high pressure, long service life, low sound level, and IP 65 protection.

An NSF-certified model is available for food and beverage equipment.

Customized Performance on Request
SpecificationUnitCustomizable Parameter
Flow rate (max.)l/min5.2
Suction height (max.)mWg3.5
Pressure head (max.)mWg60
Possible Areas of Use
  • Deionized water systems
  • Inkjet printing
  • Medical technology
  • Laboratory technology
  • Semiconductor industry
  • Fuel cells
  • Permissible ambient temperature °C+5° to +40°C
    Permissible liquid temperature °C+5° to +80°C
    Voltage V24 V
    Weight kg1.8 kg
    Dimensions L×W×H (mm)155×138×100
    Flow rate l/minKP Version: up to 4.4 l/min; KT Version: up to 4.2 l/min
    Suction height mWgKP Version: up to 3 mWg; KT Version: up to 2.8 mWg
    Pressure head mWg60
    Protection class IP 65
    Motor DCB-4
    Power (W) start at 5°C ambient W91
    I (A) start at 5°C ambient A3.9
    I (A) start at 25°C ambient A3.0
    Wires AWG22
    Input signal Vctrl / PWM inverse
    Input signal range - Vctrl 0...5 V
    Input signal range - PWM inverse 100%...0%
    Hydraulic connections G 3/8"
    Hose diameter recommendation mmID 12
    • Pump head: PP
    • Diaphragm: PTFE-coated
    • Valve material options: EPDM or FFKM/FKM

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OEM Diaphragm Liquid Pumps

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