Logo
NFB Line: Two-Headed Diaphragm Liquid Pumps

NFB Diaphragm Liquid Transfer Pumps

diaphragm liquid pumps
KNF's complete line of NFB 2-head diaphragm liquid transfer pumps.

Compact, boxer-type diaphragm liquid transfer pumps feature two pump heads driven by one motor with adjustable flow rates, and plenty of pump customization options.

The two-headed design of KNF boxer-type diaphragm fluid pumps delivers flow rates from 5 mL/min to 1.3 L/min (per head). Plus, KNF boxer-type liquid pumps feature two modes of operation, each offering cost-savings potential. In parallel mode, the alternating pump head operation results in a smooth, even flow of media -- important for systems sensitive to pulsation. In individual mode, the NFB diaphragm pumps can transfer two different liquids simultaneously, thereby eliminating the need for a second pump.

Driven by an adjustable speed, brushless DC motor; fluid flow rates can be regulated and matched to the parameters in the customer's pump system. Optimize a KNF boxer-type diaphragm pump to your OEM performance needs, with spec-driven configurations, materials, and motors available through our engineer-to-engineer project pump process.

 

Low Pulsation

Small & Powerful

2 Pumps in 1

 

  


NFB liquid pumps reduce pulsation by half compared to single-headed liquid pumps.

 

  


NFB transfer pumps produce high fluid flow rates in a compact size - perfect for portable devices.

 

  


NFB liquid pumps can be configured to transfer two different fluids simultaneously - saving space and money.

 

Contact a KNF Application Engineer to discuss your unique requirements

NFB 5

Flow Rate
(per head)

 5-50
 mL/min

Pressure

 15 psig

Suction

 9 inHg


Datasheet

Operating Instructions

NFB Pumps Flyer

NFB 5 Pump Performance Chart

NFB 25

Flow Rate
(per head)

 15-300
 mL/min

Pressure

 15 psig

Suction

 9 inHg


Datasheet

Operating Instructions

NFB Pumps Flyer

NFB 25 Pump Performance Chart

NFB 30

Flow Rate
(per head)

 300
 mL/min

Pressure

 15 psig

Suction

 18 inHg


Datasheet

Operating Instructions

NFB Pumps Flyer

NFB 30 Pump Performance Chart

NFB 60

Flow Rate
(per head)

 600
 mL/min

Pressure

 15 psig

Suction

 9 inHg


Datasheet

Operating Instructions

NFB Pumps Flyer

NFB 60 Pump Performance Chart

NFB 100

Flow Rate
(per head)

 1,300
 mL/min

Pressure

 15 psig

Suction

 9 inHg


Datasheet

Operating Instructions

NFB 100 details

NFB 100 Pump Performance Chart

Operating Modes

Parallel Mode
Individual Mode

Boxer Pump Configurations

Custom Pump Solutions

Our sophisticated modular system enables our engineers to optimize each diaphragm pump precisely to their application requirements. Additionally, KNF offers a number of pump accessories including:

Pressure control valves

Pulsation dampers

Filters