Diaphragm Gas Pump
NMP 850
Diaphragm Gas Pump
NMP 850
- Flow Rate (max.): 4.5 l/min
- Pressure (max.): 2.5 bar (rel.)
- Vacuum (max.): 230 mbar (abs.)
KNF diaphragm gas pumps transfer or compress gases and vapors and generate vacuum without contaminating the media. They are available with options for application requirements related to size, motor, control, voltage, chemical resistance, safety, vibration, noise and temperature resistance. All pump types offer oil-free operation.
Benefits
- Excellent reliability
- High performance-to-size ratio
- Low sound level
- Contamination free transfer
- Maintenance-free
- Highly resistant to aggressive media
- Self priming
- Can run dry
- Low pulsation
- FDA-approved materials available
- Flow-tight in Off mode (NC valve)
- Digitally adjustable motor
Special Features
- Diaphragm pump
Flow Rate (max.) | 4.5 l/min |
Pressure (max.) | 2.5 bar (rel.) |
Ultimate Vacuum (max.) | 230 mbar (abs.) |
Valve Material Options | EPDM, FFKM |
Diaphragm Material Options | EPDM, PTFE coated |
Pump Head Material Options | PPS |
Motor Type Options | DC, Brushless DC |
- Inkjet printing
- Analytical instruments
- Lab equipment
- Agriculture
- Automotive
- Chemical industry
- Climate technology
- Gas analytics
- Emission monitoring
- Food & beverage industry
- Security and defense
- Vacuum technology
- Fuel cells
- Cleaning and disinfection
NMP 850
Technical Details
Flow Rate (max.) | 4.5 l/min |
Pressure (max.) | 2.5 bar (rel.) |
Ultimate Vacuum (max.) | 230 mbar (abs.) |
Valve Material Options | EPDM, FFKM |
Diaphragm Material Options | EPDM, PTFE coated |
Pump Head Material Options | PPS |
Motor Type Options | DC, Brushless DC |
Features
Benefits
- Excellent reliability
- High performance-to-size ratio
- Low sound level
- Contamination free transfer
- Maintenance-free
- Highly resistant to aggressive media
- Self priming
- Can run dry
- Low pulsation
- FDA-approved materials available
- Flow-tight in Off mode (NC valve)
- Digitally adjustable motor
Special Features
- Diaphragm pump
Applications
- Inkjet printing
- Analytical instruments
- Lab equipment
- Agriculture
- Automotive
- Chemical industry
- Climate technology
- Gas analytics
- Emission monitoring
- Food & beverage industry
- Security and defense
- Vacuum technology
- Fuel cells
- Cleaning and disinfection
Downloads
Videos
Get a Sample Pump
Try out and experience the exceptional quality of KNF diaphragm pumps firsthand by ordering a sample pump. To order, create a new account or log in to your existing account.

Diaphragm Gas Pump
NMP 850 KPDC-BI4
Specific Performance Data
- Flow Rate (max.): 4.2 l/min
- Pressure (max.): 2.5 bar (rel.)
- Vacuum (max.): 230 mbar (abs.)
Tech Specifications
- Pump Head Material: PPS
- Diaphragm Material: EPDM
- Valve Material: EPDM
- Motor Type: Brushless DC
- Voltage: 10 - 26.4 V
- Hydraulic Connections: hose connector ID 5 mm
Downloads
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