VersaGrad

​​This is a Leg​acy product and has been discontinued.

However, Teledyne SSI will continue to provide spare parts and service.​​

VersaGrad Legacy HPLC Pu​mp

​Versatility and Unmatched Performance

The Versagrad™ Binary Pump line produces binary high-pressure gradients in a variety of flow and pressure ranges. Flow rates available from 0.001 – 100 mL/min with pressures up to 18,000 psi. Pulse-free, accurate flow is guaranteed with automatic pressure compensation, solvent selection, and internal pulse dampeners.

Both single and dual-piston configurations are available to meet any combination performance/value requirements. Single-piston models include 5, 10, or 40-mL/min maximum flow rates, with dual-piston models of 12, 36, or 100-mL/min maximum.

Replaced by LS Binary
VersaGrad Legacy HPLC Pump

Material Compatibility for All Applications

VersaGrad™ pumps are available in 316 stainless steel or biocompatible PEEK™ (polyetherether ketone) for metal-sensitive applications.

Reduced Maintenance

All pumps include automatic piston wash to dramatically extend the life of the high-pressure seal. Each piston stroke actively flushes the back of the primary seal with a flushing solution. The result is less down-time and reduced operating expenses.

Accuracy Over Entire Pressure Range

VersaGrad pumps are designed with precision mechanism and fluid-path components and complex control algorithms to provide accurate flow regardless of flow, backpressure, or solvent.

Performance Beyond Its Price

Simplicity of design and proven drive technology allow for superior performance at a reasonable price. Reliable operation is guaranteed long into the future with a 3-year warranty.

Easy Control

Standard controls include RS-232 serial communication ports (for complete control and pump status monitoring) and Run/Stop inputs. ​

Standard Features and Options

  • Stainless Steel or PEEK fluid path
  • Single or Dual pump heads, cam-driven with single stepper motor drive
  • AutoPrime™ one button toggles flow rate for rapid solvent change
  • Front keypad control LCD display with pressure, flow, set points, etc.
  • High-efficiency Pulse Dampener for pulse-free flow while maintaining low dead volume
  • Isolated pressure transducer to prevent solvent contamination
  • Prime/Purge Valve; Outlet Filter
  • Automatic piston wash

Standard Controls

  • RS-232 Serial Com Port (one per channel) for complete control and status monitoring
  • Run/Stop Inputs (5 Volt TTL)
  • Remote Flow Rate Voltage Control (0 – 10 Volts DC)
  • Remote Flow Rate Frequency Control (0 – 10 kHz)
  • Pressure Monitoring with user-selected upper/lower pressure limits
  • User-addressable solvent calibration feature
  • Interactive LCD control panel

Standard Specifications

Flow Accuracy2% of set flow rate
Flow Precision 0.2% RSD
Physical 7.3” H x 13.7” W x 19.5” D (18.5 x 34.8 x 49.5 cm)
Weight 46 lbs. (21 kg)
Power 100/110 Volts AC; 220 Volts AC, 50/60 Hz​

Legacy manuals and datasheets

Learn More

SSI offers several single-piston and dual-piston pumps built on the Versagrad™ pump platform. Consult the chart below to find the pumps that best suit your needs:

Single Piston Binary Gradient Pumps Part No. Flow Range Max Pressure
Series III, 5mL, PEEK VG305PFT01 0.001 - 5.0 mL/min 5,000 PSI
Series III, 5mL, Stainless Steel VG305SFT01 0.001 - 5.0 mL/min 6,000 PSI
Series III, 10mL, PEEK VG310PFT01 0.01 - 10.0 mL/min 5,000 PSI
Series III, 10mL, Stainless Steel VG310SFT01 0.01 - 10.0 mL/min 6,000 PSI
Series III, 40mL, PEEK VG340PFT01 0.1 - 40.0 mL/min 1,600 PSI
Series III, 40mL, Stainless Steel VG340SFT01 0.1 - 40.0 mL/min 1,600 PSI
Dual Piston Binary Gradient Pumps Part No. Flow Range Max Pressure
Series 1500, 12mL, PEEK VGD05PFT01 0.01 - 12 mL/min 5,000 PSI
Series 1500, 12mL, Stainless Steel VGD05SFT01 0.01 - 12 mL/min 6,000 PSI
Prep 36, 36 mL, PEEK VGP15PFT01 0.01 - 36 mL/min 5,000 PSI
Prep 36, 36 mL, Stainless Steel VGP15SFT01 0.01 - 36 mL/min 6,000 PSI
Prep 100, 100 mL, PEEK VGP40PFT01 0.1 - 100 mL/min 4,000 PSI
Prep 100, 100 mL, Stainless Steel VGP40SFT01 0.1 - 100 mL/min 4,000 PSI
UHP, 5 mL, Stainless Steel VGU05SFT01 0.001 - 5 mL/min 18,000 PSI​