Compact 2- and 3-Port Media Isolation Valve
PVR series
The PVR series compact 2- and 3-port media isolation valves are designed for medical analysis, featuring high flow rates in a small form factor. Here's a detailed breakdown of their specifications and features:
Key Features:
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Compact and High Flow Rate: These valves are ideal for applications requiring high flow rates in tight spaces.
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Orifice Sizes: Available in two variants:
- PVR16: 1.6 mm (φ1.6)
- PVR20: 2.0 mm (φ2.0)
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Internal Volume: Streamlined internal passages minimize internal volume:
- PVR16: 35 μL
- PVR20: 60 μL
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Air-Operated Valve: One variant (PVR16) is air-operated, while both types are available in solenoid or air-operated configurations.
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Rocker Type Mechanism: This minimizes changes in internal volume during operation, ensuring more stable performance.
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Corrosion Resistance: Wetted areas are metal-free to enhance corrosion resistance, making them suitable for sensitive medical environments.
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Long Service Life: Capable of up to 10 million cycles, based on Koganei testing conditions, ensuring durability.
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Low Power Consumption: Equipped with a power-saving circuit, these valves are designed to consume minimal energy.
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Pressure Range:
- PVR16: Operating pressure between 0.075 to 0.2 MPa (-11 to 29 psi).
- PVR20: Operating pressure between 0.075 to 0.3 MPa (-11 to 43.5 psi).
Flow Characteristics:
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Flow Rate (Cv):
- PVR16: Cv = 0.04 (water), C = 0.16 (air)
- PVR20: Cv = 0.065 (water), C = 0.23 (air)
Materials:
- Diaphragm Materials: Options include EPDM, FKM, and Kalrez® for different sealing requirements.
- Body and Sub-plate: Made from PEEK, a high-performance thermoplastic known for its strength and chemical resistance.
Power Consumption:
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Solenoid Type:
- In-rush: 3.7 W, Holding: 1 W (24 VDC).
- 12 VDC variant: In-rush: 5.2 W, Holding: 1 W.
Additional Notes:
- Manifolds: Can be custom-manufactured to meet specialized specifications.
- Valve Sizes: PVR16 is 10 mm in height, and PVR20 is 12 mm in height, making them very compact for their high flow capabilities.
These valves are specifically engineered for medical systems where space is limited, and high reliability, low power consumption, and minimal internal volume are critical.
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Mounting and Alignment:
- Dual locating pins ensure easy alignment during mounting. Captive seals and mounting screws help maintain secure attachment.
- The internal volume changes minimally during valve operation, reducing equipment uniformity impact.
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Safety Precautions:
- The product is for use in specific analytical devices and not for medical, safety-critical, or food-related applications.
- Users must ensure the compatibility of the valve with the chemicals used, avoid flammable or toxic media, and follow safety protocols to prevent injury, chemical leaks, and system damage.
- It is essential to adhere to the recommended torque settings for mounting and piping to avoid equipment failure.
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Electrical and Installation Warnings:
- Precautions include ensuring proper wiring, avoiding exposure to strong magnetic fields, and preventing accidental leaks when connecting or disconnecting tubes and wires.
- Users should follow correct procedures for solenoid valve installation, maintenance, and handling to avoid electrical hazards, fires, or malfunctioning.
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Media Quality:
- Ensure fluids are compatible and clean, as contaminants may cause malfunction. Use filters when necessary for water or air.
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Warranty and General Disclaimers:
- The warranty covers products malfunctioning within a year (two years for some products). Koganei is not liable for damages resulting from improper usage, incorrect installation, or external factors like natural disasters.
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Additional Considerations:
- The product should be installed in environments within specified temperature and humidity ranges. It's not waterproof and must not be used in high-impact or vibration-prone areas.
- Proper training and adherence to safety guidelines are necessary to avoid accidents during product handling and operation.
The document stresses the importance of proper installation, regular inspection, and handling to maintain safety and ensure long-term functionality of the product.
