Product Overview
The SAGINOMIYA SEV-603BXF is a direct-acting, normally closed (NC) refrigeration solenoid valve engineered for precise on/off control of refrigerant flow in commercial and industrial refrigeration circuits. Manufactured by Saginomiya, a recognized authority in refrigeration and air-conditioning control components, the SEV series is designed to deliver reliable magnetic actuation, bubble-tight sealing, and rapid response across a wide range of refrigerants and operating conditions. As a process and pneumatic valve, it functions as an electrically actuated flow control device—opening when the coil is energized and closing by spring force upon de-energization—making it ideal for liquid line, suction line, hot gas, and discharge line service in refrigeration and HVAC systems.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Refrigeration Solenoid Valve (Process & Pneumatic Valve) |
| Model Designation | SEV-603BXF |
| Valve Action | Direct-acting, Normally Closed (NC) |
| Operating Pressure | Standard Industrial Grade (Up to rated bar, refrigeration circuit service) |
| Mounting & Connection | Standard ISO / Manufacturer Interface (flare or solder connection per SEV series) |
| Coil Voltage | AC/DC coil options available (per SEV series configuration) |
| Sealing Material | Refrigerant-compatible elastomer (e.g., HNBR / Neoprene) |
Engineering Features & Advantages
- Precision Performance: Direct-acting solenoid design provides positive, bubble-tight shut-off and rapid response to electrical signals, ensuring accurate refrigerant flow control without the need for a minimum pressure differential.
- Industrial Reliability: Built for continuous operation under severe refrigeration and industrial conditions, with a robust magnetic coil and durable valve body resistant to vibration, thermal cycling, and refrigerant exposure.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original Saginomiya SEV series specifications, ensuring drop-in replacement without modification to existing piping or electrical connections.
- Wide Refrigerant Compatibility: Suitable for use with common refrigerants including R-22, R-134a, R-404A, R-407C, and R-410A, depending on seal and coil configuration.
Typical Industrial Applications
The SAGINOMIYA SEV-603BXF refrigeration solenoid valve is widely deployed in commercial refrigeration racks, industrial process cooling systems, cold storage and blast freezing facilities, and HVAC chiller plants. It is also used in plastic injection molding machine cooling circuits, food and beverage processing lines, and marine refrigeration systems where reliable, electrically controlled refrigerant flow shut-off is critical to system efficiency and safety.
PRODUCT IMAGES



SAGINOMIYA SEV-603BXF Refrigeration Solenoid Valve
⚡ Emergency Plant Maintenance & Ready-to-Ship Notice:
- Authentic & Fully Tested: 100% bench tested for hydraulic response, pressure rating, and null-bias stability before dispatch.
- Fast Dispatch: In-stock units ready for same-day dispatch via DHL / FedEx Express directly to your plant.
- Pre-Shipment Verification: High-definition photos, video testing runs, and serial number verification provided prior to shipment.
- Peace of Mind: Covered by our 12-Month Replacement Warranty.
Shop the genuine SAGINOMIYA SEV-603BXF Solenoid Operated Directional Valve. This Japan-made hydraulic component features a spool-type design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.