Analyical Scientific Instruments

FlatLine™ Pulse Damper

FlatLine™ Pulse Damper Features:

  • Rupture proof Pulse Damper with no diaphragm

  • Flow path geometry combines clean flush out with minimal internal volume

  • Custom sizes available for OEM

  • FlatLine™ HC (High Capacity) increases damping efficiency and range

  • Can be manufactured to include a pressure transducer and/or a prime purge valve

The ASI FlatLine™ Pulse Damper combines performance and reliability in a simple, easy to use housing. Standard 10-32 inlet and outlet ports allow quick connection into virtually any HPLC system. Solid core technology provides reliable long term operation without the down time associated with ruptured or leaking membrane dampers. Custom sizes and additional features like integral prime/purge valve available for the OEM market.

Although similar to the standard ASI FlatLine™ Damper, the HC (High Capacity) features a bimodal damping mechanism which includes solid core and dynamic spring deflection. This combination increases damping efficiency over a wider pressure range. The HC is particularly well suited for damping at low pressures, below 500 PSI.

Ordering Information:

Description ASI Part Number
ASI FlatLine™ Pulse Damper 590-0001
ASI FlatLine™ HC Pulse Damper 590-0010

Pulse Damper Comparison

Performance and Reliability

Figure 45

HPLC System Configuration:
HPLC Pump
Amplified Ext. Pressure Transducer
Varian Star Data Acquisition

HPLC Conditions:
MP: A = H2O
Flow Rate: 1.0 mL/min. Isocratic
Pressure: 2,300 PSI with restrictor

Solid Core Design Improves Flush Out and Dispersion

Figure 46

HPLC System Configuration:
HPLC Pump
ABI Model 785 UV/VIS @254 oncolumn
Varian Star Data Acquisition

HPLC Conditions:
MP: A = H2O
Flow Rate: 1.0 mL/min. Isocratic
Pressure: 2,300 PSI with restrictor
Injection: 10 µL Acetone