We use cookies to understand how you use our site and to improve your experience. This includes personalizing content and advertising. To learn more, click here. By continuing to use our site, you accept our use of cookies. Cookie Policy.

LabMedica

Download Mobile App
Recent News Expo Clinical Chem. Molecular Diagnostics Hematology Immunology Microbiology Pathology Technology Industry Focus

Mechanism of the Valveless Pump Revealed in Online Video Presentation

By LabMedica International staff writers
Posted on 16 Dec 2014
Image: The QG line of pumps is ideal for general laboratory and industrial use (Photo courtesy of Fluid Metering, Inc.).
Image: The QG line of pumps is ideal for general laboratory and industrial use (Photo courtesy of Fluid Metering, Inc.).
The secrets behind a precision valveless pump used in both research and clinical instruments and processes have been revealed in a high definition video presentation.

Fluid Metering, Inc. (New York, USA) is a metering pumps and dispensers manufacturer, who pioneered the first patented valveless rotating and reciprocating piston metering pump concept and has been producing instruments for precise fluid control for over 55 years.

The Fluid Metering, Inc. CeramPump design utilizes a single, dimensionally stable, chemically inert ceramic piston that ensures long term, drift free fluid control. The valveless pumping function is accomplished by the synchronous rotation and reciprocation of the ceramic piston in a precisely mated ceramic cylinder liner. One complete piston revolution is required for each suction/discharge cycle. The flow rate, which can be changed while pump is operating or at rest, is easily adjusted between 0%–100% by moving the pump head position, which changes the piston stroke length and, in turn, the flow rate.

As described in a recently released on-line video presentation, the CeramPump relies on only one moving part, a rotating and reciprocating ceramic piston, to accomplish all fluid control functions without valves and will maintain a precision of 0.5% for millions of cycles without calibration or maintenance.

Related Links:
Fluid Metering, Inc.


New
Gold Member
Immunochromatographic Assay
CRYPTO Cassette
Collection and Transport System
PurSafe Plus®
New
Automatic Chemiluminescence Immunoassay Analyzer
Shine i2000
New
HBV DNA Test
GENERIC HBV VIRAL LOAD VER 2.0

Channels

Hematology

view channel
Image: New research points to protecting blood during radiation therapy (Photo courtesy of 123RF)

Pioneering Model Measures Radiation Exposure in Blood for Precise Cancer Treatments

Scientists have long focused on protecting organs near tumors during radiotherapy, but blood — a vital, circulating tissue — has largely been excluded from dose calculations. Each blood cell passing through... Read more

Pathology

view channel
Image: Erythrocyte Sedimentation Rate Sample Stability (Photo courtesy of ALCOR Scientific)

ESR Testing Breakthrough Extends Blood Sample Stability from 4 to 28 Hours

Erythrocyte sedimentation rate (ESR) is one of the most widely ordered blood tests worldwide, helping clinicians detect and monitor infections, autoimmune conditions, cancers, and other diseases.... Read more

Technology

view channel
Image: Conceptual design of the CORAL capsule for microbial sampling in the small intestine (H. Mohammed et al., Device (2025). DOI: 10.1016/j.device.2025.100904)

Coral-Inspired Capsule Samples Hidden Bacteria from Small Intestine

The gut microbiome has been linked to conditions ranging from immune disorders to mental health, yet conventional stool tests often fail to capture bacterial populations in the small intestine.... Read more