Product Overview
The RHEODYNE MXT715-004 is a precision analytical injection valve engineered for accurate, repeatable sample introduction in high-performance liquid chromatography (HPLC) and analytical instrumentation systems. Manufactured by IDEX Health & Science under the renowned Rheodyne brand, this valve utilizes a rotary shear-valve working principle in which an internal rotor and stator pair align to switch between LOAD and INJECT positions. The MXT715-004 is a manually actuated, two-position injection valve designed for low-dispersion sample transfer, making it a critical flow-control component in analytical fluid circuits where precise volumetric reproducibility and chemical inertness are essential.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Analytical Injection Valve (Rotary Shear Valve) |
| Model Designation | MXT715-004 |
| Manufacturer | Rheodyne (IDEX Health & Science) |
| Valve Configuration | Two-position, six-port injection valve (LOAD / INJECT) |
| Actuation | Manual rotary actuation with position-sensing feedback |
| Operating Pressure | Standard analytical grade (up to rated system pressure) |
| Wetted Materials | Inert PTFE / PEEK rotor seal, corrosion-resistant stator |
| Mounting & Connection | Standard 1/4-28 threaded port interface |
Engineering Features & Advantages
- Precision Metering: The rotary shear-valve design delivers highly reproducible injection volumes with minimal sample carryover, ensuring analytical accuracy across consecutive runs.
- Low Dispersion Flow Path: Optimized internal port geometry minimizes band broadening, preserving peak resolution in chromatographic separations.
- Chemical Inertness: Inert wetted materials resist aggressive solvents and mobile phases, extending service life and maintaining sample integrity.
- Industrial Reliability: Built for continuous operation under demanding laboratory and process-analytical conditions.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original Rheodyne OEM standards for drop-in service.
Typical Industrial Applications
The RHEODYNE MXT715-004 is widely deployed in HPLC and UHPLC systems, pharmaceutical quality-control laboratories, petrochemical and environmental analytical instrumentation, and process analytical technology (PAT) skids. It is equally suited to food and beverage testing, clinical diagnostics, and any fluid-handling circuit requiring precise, repeatable sample injection under controlled pressure.
PRODUCT IMAGES

RHEODYNE MXT715-004 Analytical Injection 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.
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