Products & Solutions

ASCO Micro-Miniature Solenoid Valves

ASCO Miniature Valve products include a complete line of general service, isolation, pinch, proportional valves & manifold assemblies

​ASCO miniature valves are utilized for the precise and reliable control of liquids and gases in medical equipment, analytical instrumentation, and industrial applications.

ASCO Miniature Valve Products are assembled and 100% factory tested in an ISO Class 8 equivalent cleanroom.

In addition to our comprehensive catalog product offering, ASCO has the ability to create customized assemblies. Whether you need a minor modification of a catalog product or a complete flow control solution, ASCO's trained sales and engineering teams are ready to assist.





General Service Valves
ASCO General Service Valves control the flow of neutral gases. They are known for their long life and fast response time. ASCO General Services Valves are available in multiple mounting configurations.

General Service Miniature Applications Include:

- Blood Pressure Monitoring (non-invasive)
- Oxygen Concentrators
- Dental Equipment
- Air Monitoring Instruments
- Pharmaceutical
- Textile Equipment

View ASCO's General Service Miniature Valve Overview Page for more information.



Isolation Valves
ASCO Isolation Valves control the flow of neutral and aggressive fluids. They key design characteristic of an isolation valve is to isolate the fluid from the solenoid, which is crucial for applications requiring high fluid purity and low dead volume.

Isolation Valve Applications Include:

- Medical Diagnostics
- Mass Spectrometry
- HPLC Analyzers
- Clinical Sterilizers
- Pipette Dispensing
- Hematology Analyzers
- DNA Sequencing

View ASCO's Fluid Automation Solutions Overview Page for more information.


​Pinch Valves
ASCO Pinch Valves provide the ability to control the flow of a fluid through an uninterrupted flow path. The fluid stays in its original supply tube and is controlled by the opening and closing "pinch" of the valve. Because the fluid never leaves the supply tube there is zero dead volume and no cross-contamination risk.

Pinch Valve Application examples include:

- Drug Dispensing
- Food & Beverage Dispensing
- Urinary Collection Systems
- Dialysis Equipment
- Intravenous (IV) Systems

View ASCO's Pinch Valve Overview Page for more information.


Proportional Valves
ASCO Proportional Valves control the flow of neutral fluids. By varying the input current you can precisely adjust the valve's flow rate. This eliminates the need for a variable flow system to contain multiple valves with different flow rates.

Proportional Valve Application examples include:

- Anesthesia Equipment
- Blood Pressure Monitoring (non-invasive)
- Endoscopy Equipment
- Gas Chromatography
- Respirators
- Ventilators

View the Proportional Valve Overview Catalog for more information.

Manifold Assemblies
ASCO offers complete manifold assemblies utilizing our 411 and RB Series valves. These assemblies consist of the valves mounted onto any anodized aluminum manifold and 100% factory tested. They are available in a single station manifold up to 12 station assembly standard.


Miniature Valve Accessories
ASCO offers a variety of accessories including fittings, tubing, and electrical connectors tailored specifically for our miniature valve products