KNF – Diaphragm Liquid Transfer Vacuum Pump

The Vacuum Pump Offers Wetted Material Combinations for Optimal Chemical Resistance
Chemically resistant liquid transfer diaphragm pump. Offers wetted material combinations for optimal chemical resistance.
- Manual control of flow rate with LED indicator.
- Equipped with manual and analog controls.
Technical Specifications
Models | LIQUIPORT® NF 1.100 S | LIQUIPORT® NF 1.100 RC | LIQUIPORT® NF 100 S | LIQUIPORT® NF 100 RC | LIQUIPORT® NF 1.300 S | LIQUIPORT® NF 1.300 RC | LIQUIPORT® NF 300 S | LIQUIPORT® NF 300 RC |
Weight | 0.8 kg | 0.8 kg | 0.8 kg | 0.8 kg | 1.5 kg | 1.5 kg | 1.5 kg | 1.5 kg |
Dimensions W x H x D | 130 x 99 x 177 mm | 130 x 99 x 177 mm | 130 x 99 x 177 mm | 130 x 99 x 177 mm | 160 x 104 x 188 mm | 160 x 104 x 188 mm | 160 x 104 x 188 mm | 160 x 104 x 188 mm |
Ambient temperature allowed | +5 to +40 °C | +5 to +40 °C | +5 to +40 °C | +5 to +40 °C | +5 to +40 °C | +5 to +40 °C | +5 to +40 °C | +5 to +40 °C |
Liquid temperature allowed | +5 to +80 °C | +5 to +80 °C | +5 to +80 °C | +5 to +80 °C | +5 to +80 °C | +5 to +80 °C | +5 to +80 °C | +5 to +80 °C |
Maximum viscosity allowed | 150 cSt | 150 cSt | 150 cSt | 150 cSt | 150 cSt | 150 cSt | 150 cSt | 150 cSt |
Protection class | IP65 | IP65 | IP65 | IP65 | IP65 | IP65 | IP65 | IP65 |
Flow Rate | 0.2–1.3 l/min | 0.2–1.3 l/min | 0.2–1.3 l/min | 0.2–1.3 l/min | 0.5–3 l/min | 0.5–3 l/min | 0.5–3 l/min | 0.5–3 l/min |
Pressure (max.) | 4 bar (rel.) | 4 bar (rel.) | 4 bar (rel.) | 4 bar (rel.) | 4 bar (rel.) | 4 bar (rel.) | 4 bar (rel.) | 4 bar (rel.) |
Main supply | 100–240 V / 50–60 Hz | 100–240 V / 50–60 Hz | 100–240 V / 50–60 Hz | 100–240 V / 50–60 Hz | 100–240 V / 50–60 Hz | 100–240 V / 50–60 Hz | 100–240 V / 50–60 Hz | 100–240 V / 50–60 Hz |
Protection class | IP65 | IP65 | IP65 | IP65 | IP65 | IP65 | IP65 | IP65 |
Power consumption | 12–16 W | 12–16 W | 12–16 W | 12–16 W | 29–34 W | 29–34 W | 29–34 W | 29–34 W |
Supply with barbed fittings | for tubing ID 8 mm | for tubing ID 8 mm | for tubing ID 8 mm | for tubing ID 8 mm | for tubing ID 12 mm | for tubing ID 12 mm | for tubing ID 12 mm | for tubing ID 12 mm |
Key Features
Manual and Analog Controls:
- Manual control
- Analog and impulse control (RC)
Motor and Operation:
- New Equipped with brushless DC Motor
- Simple, intuitive operation
Durability and Protection:
- Improved service life
- Integrated overheating protection
- Splashproof with IP65 rating
- Maintenance-free
Performance and Design:
- Small footprint
- Self-priming, can run dry
- Available with different material configurations for chemical resistance
Available Models

LIQUIPORT® NF 1.100 S
LIQUIPORT® NF 1.100 S is a chemically resistant liquid transfer diaphragm pump. Offers wetted material combinations for optimal chemical resistance. Manual control of flow rate with LED indicator.
- Available pump head materials: PP, PVDF, PTFE
- Diaphragm material: PTFE-coated
- Valve material: FFKM

LIQUIPORT® NF 1.100 RC
LIQUIPORT® NF 1.100 RC is a chemically resistant liquid transfer diaphragm pump. Offers wetted material combinations for optimal chemical resistance. Equipped with manual and analog controls.
- Available pump head materials: PP, PVDF, PTFE
- Diaphragm material: PTFE-coated
- Valve material: FFKM-Simriz®

LIQUIPORT® NF 100 S
LIQUIPORT® NF 100 S is a chemically resistant liquid transfer diaphragm pump. Offers wetted material combinations for optimal chemical resistance. Manual control of flow rate with LED indicator.
- Available pump head materials: PP, PVDF, PTFE
- Diaphragm material: PTFE-coated
- Valve material: FFKM-Simriz®

LIQUIPORT® NF 100 RC is a chemically resistant liquid transfer diaphragm pump. Offers wetted material combinations for optimal chemical resistance. Equipped with manual and analog controls.
- Available pump head materials: PP, PVDF, PTFE
- Diaphragm material: PTFE-coated
- Valve material: FFKM-Simriz®

LIQUIPORT® NF 1.300 S
LIQUIPORT® NF 1.300 S is a chemically resistant liquid transfer diaphragm pump. Offers wetted material combinations for optimal chemical resistance. Manual control of flow rate with LED indicator.
- Available pump head materials: PP, PVDF, PTFE
- Diaphragm material: PTFE-coated
- Valve material: FFKM-Simriz®

LIQUIPORT® NF 1.300 RC
LIQUIPORT® NF 1.300 RC is a chemically resistant liquid transfer diaphragm pump. Offers wetted material combinations for optimal chemical resistance. Equipped with manual and analog controls.
- Available pump head materials: PP, PVDF, PTFE
- Diaphragm material: PTFE-coated
- Valve material: FFKM-Simriz®

LIQUIPORT® NF 300 S
LIQUIPORT® NF 300 S is a chemically resistant liquid transfer diaphragm pump. Offers wetted material combinations for optimal chemical resistance. Manual control of flow rate with LED indicator.
- Available pump head materials: PP, PVDF, PTFE
- Diaphragm material: PTFE-coated
- Valve material: FFKM-Simriz®

LIQUIPORT® NF 300 RC
LIQUIPORT® NF 300 RC is a Chemically resistant liquid transfer diaphragm pump. Offers wetted material combinations for optimal chemical resistance. Equipped with manual and analog controls.
- Available pump head materials: PP, PVDF, PTFE
- Diaphragm material: PTFE-coated
- Valve material: FFKM-Simriz®
Brand
KNF was founded in 1946 in Freiburg, Germany as a family-owned business and has 24 locations worldwide to this day. KNF has been established globally as a solution provider specializing in developing, producing, and distributing high-quality diaphragm pumps and systems for gases, vapors, and liquids.
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