Product Overview
The Thermo Fisher 4448958 is a precision-engineered solenoid valve designed for reliable fluid and gas control in analytical instrumentation, laboratory automation, and general industrial process systems. As a direct-acting, two-way normally closed solenoid valve, it utilizes an electromagnetic coil to actuate an internal plunger or diaphragm, providing fast, repeatable on/off control of compatible media. Manufactured to Thermo Fisher Scientific’s exacting quality standards, this valve is a critical component in OEM equipment and process lines where leak-tight sealing, low power consumption, and consistent response times are essential. Its compact body and chemically resistant wetted materials make it suitable for integration into both new system builds and drop-in replacement applications.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Solenoid Valve (Process & Pneumatic) |
| Model Designation | 4448958 |
| Manufacturer | Thermo Fisher Scientific |
| Valve Configuration | 2-Way, Normally Closed (NC) |
| Actuation Type | Direct-Acting Electromagnetic Solenoid |
| Operating Pressure | Standard Industrial Grade (low to medium pressure range) |
| Mounting & Connection | Standard threaded / manufacturer interface |
| Body & Seal Materials | Chemically resistant wetted materials (OEM specification) |
Engineering Features & Advantages
- Precision Performance: Direct-acting solenoid design delivers fast, repeatable actuation and tight shut-off for accurate on/off control of compatible process media.
- Industrial Reliability: Built for continuous duty cycling under demanding laboratory and industrial process conditions, with stable coil performance and minimal heat rise.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original Thermo Fisher OEM specifications, ensuring drop-in installation without modification.
- Compact & Versatile: Space-saving body design allows integration into dense manifold and instrumentation panels.
Typical Industrial Applications
Commonly deployed in analytical instrumentation and laboratory automation systems, chemical and pharmaceutical process lines, water and gas sampling equipment, and general industrial pneumatic control circuits where precise, low-power solenoid actuation is required.
PRODUCT IMAGES


Thermo Fisher 4448958 Solenoid Valve
âš¡ Emergency Plant Maintenance & Ready-to-Ship Notice:
- Authentic & Fully Tested: 100% bench tested for hydraulic response, pressure rating, and null-bias stability before dispatch.
- Fast Dispatch: In-stock units ready for same-day dispatch via DHL / FedEx Express directly to your plant.
- Pre-Shipment Verification: High-definition photos, video testing runs, and serial number verification provided prior to shipment.
- Peace of Mind: Covered by our 12-Month Replacement Warranty.
Shop the genuine Thermo Fisher 4448958 Solenoid Directional Valve. This USA-made 24 VDC hydraulic component features a 4-way 3-position design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.