Product Overview
The Rheodyne 7000 Rotary Switching Valve is a precision-engineered, multi-port rotary shear valve designed for reliable fluid and gas flow path selection in analytical and industrial process systems. Manufactured by Rheodyne (now part of IDEX Health & Science), this valve operates on a rotary shear principle in which a rotating stator and stationary seal face create precise, repeatable fluidic connections between multiple ports. The Model 7000 is widely recognized as an industry-standard component for sample injection, column switching, and flow diversion in high-performance liquid chromatography (HPLC) and general process instrumentation. Its robust construction and chemically inert wetted materials make it suitable for demanding continuous-duty applications where leak-free, low-dead-volume switching is critical.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Rotary Switching Valve (Process & Pneumatic Valve) |
| Model Designation | Rheodyne 7000 |
| Operating Pressure | Standard Industrial Grade (Up to rated bar, dependent on port configuration and seal material) |
| Mounting & Connection | Standard ISO / Manufacturer Interface (1/4-28 or 10-32 threaded ports typical) |
| Valve Principle | Rotary shear, multi-port flow switching |
| Wetted Materials | Chemically inert PTFE / PEEK seal, stainless steel body |
| Actuation | Manual or pneumatic rotary actuator (model-dependent) |
Engineering Features & Advantages
- Precision Performance: Rotary shear sealing mechanism delivers repeatable, low-dead-volume flow path switching with minimal carryover and excellent chemical compatibility.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with a durable stainless steel body and wear-resistant seal face ensuring long service life.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original OEM standards, allowing drop-in replacement in existing Rheodyne 7000 installations.
- Versatile Port Configuration: Multi-port design supports sample injection, column switching, and flow diversion without system redesign.
Typical Industrial Applications
The Rheodyne 7000 Rotary Switching Valve is commonly deployed in HPLC and analytical instrumentation for sample injection and column switching, in chemical process and petrochemical sampling systems for stream selection, in pharmaceutical production lines for precise fluid routing, and in general industrial process and pneumatic control circuits requiring reliable multi-port flow diversion.
PRODUCT IMAGES
Rheodyne 7000 Rotary Switching Valve
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