HPLC and flow chemistry Pumps

LC Pumps from FLOM, made in Japan

Pumps for HPLC, UHPLC and flow chemistry

Flom (part of GL Sciences), is a manufacturer of HPLC, UHPLC and liquid transfer pump components. Choose from a wide range of pumps, from high performance types with automatic control of flow rates, to simple pumps at an affordable price.

MP-22 Series, No-Pulsation Linear-drive Pump
At low flow rates (0.5mL/min. or lower), check valves become an variable factor for flow volume and pulsation. The new MP-22 doesn’t use any check vales but instead it is using a fast switching valve. This results in stable flows and pressure even with low flows.

Driving method	Linear-drive pump + auto switching valve
Selectable flow rate	Controllable range of pulsation:10~500µL/Min.
Wetted materials	Pump: SUS 316, High-density polyethylene, Kalrez, Sapphire, PFA and PEEK Valve: SUS316 and PEEK
Maximum pressure	20 MPa (2900psi)
Plunger diameter	3.2 mm
Plunger stroke	10 mm
Flow per stroke	80µL
Flow accuracy	< 0.3%

Brochure of MP-22 no check valve pump.

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Linear drive type pump Intelligent pump UI-22
The UI-22 series are replaced by the UI-32 series from 2025.

• Reduces pulsation to an absolute minimum, making super low pulsation flow possible
• Problems with bubbles are greatly reduced
• Plunger seal life extended
• Limit switch for both high and low pressure
• Choose Stainless Steel, PEEK or Fluorocarbon polymer

Popular setup in flow chemistry

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New Linear drive type pump Intelligent pump UI-32

Combines high-precision flow and ease of use

• Reduces pulsation to an absolute minimum, making super low pulsation flow possible
• Problems with bubbles are greatly reduced
• Plunger seal life extended
• Limit switch for both high and low pressure
• Choose Stainless Steel, PEEK or (Fluorocarbon polymer from April 2025)
• Very small design

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Medium to High Pressure Single Pump SP Series
Developed using our intelligent pump technology, but aiming for high performance at a low price.
Single Plunger Pump SP-32 Series

• With Pressure Sensor
• equipped with pulse control mechanism (quick return mode)
• easy to read backlighted LCD display
• real-time pressure display
• column integrity protected by convenient upper-limit pressure switch
• convenient precision metered solvent volume dispensing
• RS-232C interface for computer control
• can choose from 8 different models to match desired flow ranges
• SUS or PEEK versions

Single Plunger Pump SP-31 Series

• Without Pressure Sensor
• equipped with pulse control mechanism (quick return mode)
• easy to read backlighted LCD display
• convenient precision metered solvent volume dispensing
• RS-232C interface for computer control
• variety of seals to choose from depending on solvent
• can choose from 8 different models to match desired flow ranges
• SUS or PEEK versions

SP-22 and SP-21 are no longer available.

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Roller Pump WP-21

New peristaltic or roller pump from FLOM

- Space-saving compact design
- Choose tubing to match your solvent
- Tube cassette can be set in any of 4 directions
- Great for plunger pump cleaning

Product name	Roller Pump
Part number	WP-21
Flow rate range	4 step settings (approx. 0.5 - 1.0 - 2.0 - 3.0 ml/min)
Switching	4 steps from front switch (rotary style)
Features	hold down front switch to purge ( approx. 5 mL/min )
Flow accuracy	± 5 % (Pharmed BPT)
Output pressure	90 kpa or less (Pharmed BPT)
Intake pressure	-90 kpa or less (Pharmed BPT)
Temperature range	5 - 50°C
Rotary direction	Clockwise when viewed from front
External I/O	Input : OFF/ ON switch (powering on begins pumping) Output :Error Signal
Tubing	Pharmed BPT / Fluran F-5500-A / TransMaster TM-15
Dimensions	65 (H) x 46 (W) x 110 (D) mm, excluding protuberances
Weight	Approx. 0.5 kg
Power	AC100 - 240 V(50 / 60 Hz) MAX 15 W