Product Overview
The Thermo Scientific LPG-3400XRS Proportioning Valve (Part No. 5043.0036) is a precision-engineered fluid proportioning valve assembly designed for the Thermo Scientific UltiMate 3000 series HPLC/UHPLC systems. This valve functions as a multi-port flow control component that precisely proportions and blends mobile phase solvents from up to four independent reservoirs before delivery to the high-pressure pump. Operating on a solenoid-actuated, low-pressure gradient proportioning principle, the valve ensures accurate solvent mixing ratios with minimal dead volume, delivering reproducible gradient performance critical for analytical chromatography. As a direct OEM replacement component, it maintains exact dimensional and functional compatibility with the original factory specification.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Proportioning Valve (General Process & Pneumatic Valve) |
| Model Designation | LPG-3400XRS / 5043.0036 |
| Operating Pressure | Low-pressure gradient proportioning (pre-pump, up to 5 bar inlet) |
| Mounting & Connection | Standard OEM interface, 4-channel solvent inlet, 1 outlet to pump |
| Number of Ports | 4 solvent inlets + 1 common outlet |
| Actuation Type | Solenoid-actuated, electronically controlled |
| Wetted Materials | PTFE, PEEK, and inert polymer components |
| Compatibility | Thermo Scientific UltiMate 3000 series HPLC/UHPLC systems |
Engineering Features & Advantages
- Precision Performance: Solenoid-actuated proportioning mechanism delivers accurate and reproducible solvent blending ratios, ensuring consistent gradient profiles and retention time stability in chromatographic analysis.
- Industrial Reliability: Constructed with chemically inert wetted materials (PTFE/PEEK) for broad solvent compatibility and long service life under continuous operational cycles.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original OEM standards, enabling straightforward drop-in replacement without system modification or recalibration.
- Low Dead Volume Design: Minimizes gradient delay volume for faster equilibration and sharper gradient transitions.
- Multi-Channel Capability: Supports up to four independent solvent lines for flexible binary, ternary, or quaternary gradient methods.
Typical Industrial Applications
This proportioning valve is primarily utilized in analytical and research laboratory environments, including pharmaceutical quality control and drug development (HPLC/UHPLC gradient analysis), environmental testing and water quality monitoring, food safety and beverage analysis, and academic/proteomics research requiring precise multi-solvent gradient chromatography. It is also applicable in petrochemical and fine chemical analytical workflows where accurate solvent proportioning is critical.
PRODUCT IMAGES
THERMO SCIENTIFIC LPG-3400XRS / 5043.0036 Proportioning Valve
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- Authentic & Fully Tested: 100% bench tested for hydraulic response, pressure rating, and null-bias stability before dispatch.
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- Peace of Mind: Covered by our 12-Month Replacement Warranty.
Shop the genuine THERMO SCIENTIFIC LPG-3400XRS / 5043.0036 Solenoid Valve. This Germany-made 24V DC hydraulic component features a 2-way normally closed design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.