Product Overview
The Rheodyne 3725i-119 is a precision manual sample injector valve engineered for accurate, repeatable introduction of liquid samples into analytical and process flow streams. As part of the Rheodyne 3725i series, this valve utilizes a robust rotary shear-seal design that delivers consistent injection volumes with minimal sample carryover. The 3725i-119 is configured for manual actuation, making it ideal for laboratory and pilot-scale process environments where operator-controlled injection is preferred. Its chemically inert wetted flow path ensures compatibility with a broad range of solvents, reagents, and process fluids, while the durable construction supports reliable performance in continuous industrial operation.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Manual Sample Injector Valve (Process & Pneumatic Valve) |
| Model Designation | 3725i-119 |
| Operating Pressure | Standard Industrial Grade (Up to rated bar) |
| Mounting & Connection | Standard ISO / Manufacturer Interface |
| Actuation Type | Manual rotary lever |
| Flow Path Material | Chemically inert wetted components |
| Sealing Principle | Rotary shear-seal (PTFE-based) |
Engineering Features & Advantages
- Precision Performance: Rotary shear-seal design delivers highly repeatable injection volumes with minimal sample carryover, ensuring analytical accuracy.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with a durable body and wear-resistant sealing interface.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original OEM Rheodyne 3725i series valves for drop-in service.
- Chemical Compatibility: Inert wetted flow path accommodates a wide range of solvents, reagents, and aggressive process fluids.
- Manual Control: Lever-actuated design provides clear, tactile switching between load and inject positions for operator confidence.
Typical Industrial Applications
This manual sample injector valve is commonly deployed in analytical instrumentation and process sampling systems, including high-performance liquid chromatography (HPLC) and liquid chromatography-mass spectrometry (LC-MS) workflows, pilot-scale chemical and pharmaceutical process sampling, petrochemical and refinery stream analysis, and food and beverage quality control laboratories. Its robust construction also suits continuous industrial monitoring where reliable, operator-controlled sample introduction is required.
PRODUCT IMAGES
Rheodyne 3725i-119 Manual Sample Injector 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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