LS Class PEEK LS Class SS

The reliable LS Class consists of single-headed, positive displacement piston pumps incorporating advanced cam designs for very low pulsation. With micro-stepping motor technology and a proven single-piston pump mechanism, the LS Class exceeds the performance of more expensive units at a fraction of the cost.

The pumps are ideal for a wide variety of HPLC applications (including Biocompatible separations), Semi-Prep LC, metering & dispensing, and general laboratory use. Standard fluid path materials are Stainless Steel and PEEK, in addition to optional Titanium. Other available features include jacketed heads for temperature controlled processes. With 5 mL/min, 10 mL/min, and 40 mL/min versions available, and pressure capability up to 6,000 psi, these versatile pumps will meet the most demanding applications.

Features include automatic pressure compensation, Pulse Dampener, integrated Prime-Purge Valve, interactive keypad control, and complete PC control and status through RS-232 and Micro USB 2.0 ports. The unique LS Class provides the highest performance/cost ratio in a compact package.

Flow Rate Pressure Fluid Path Control
5 mL/min
10 mL/min
40 mL/min
Up To
6,000 psi
(5 ml/min or 10 ml/min)
Stainless Steel
PEEK or Titanium
RS-232, Micro USB
Voltage Flow Control

LS Class Specifications

Flow Rate and Max Pressure Ratings* 0.000 -5.000 ml/min (6,000 psi)
0.00- 10.00 ml/min (6,000 psi)
0.0 – 40.00 ml/min (1,600 psi)
Pulsation** ≤2% @ 1 mL/min and 1,000 psi
Pressure Accuracy +/-2% of full scale pressure
Flow Precision 0.2% RSD
Flow Accuracy Within 2% of set flow rate, 0.20 mL/min and above; 80:20 Water/IPA @ 1,000 psi (5 mL and 10 mL)
Within 2% of set flow rate, 0.80 mL/min andabove; 80:20 Water/IPA @ 1,000 psi (40 mL)
Wetted Materials (Options), Synthetic Ruby, Sapphire, UHMWPE, PTFE
Dimensions 6.5” H x 7” W x 16” D (16.5 x 17.8 x 40.6 cm)
Weight 15.3 lbs. (6.9 kg)
Power 100-240 Vac (± 10%), 50-60 Hz
Control RS-232, Micro USB, Voltage Flow Control, Run/Stop

* Flow Rate is dependent on solvent selection and operating pressure. ** Pulsation value with pulse dampener.