Product Overview
The YUKEN BG-03-32 is a pilot operated relief valve engineered for precise pressure control in industrial hydraulic systems. Manufactured by YUKEN, a globally recognized leader in hydraulic component design, this valve belongs to the BG series of pressure control valves. It operates on a two-stage pilot operated principle: the main poppet remains closed until system pressure overcomes the adjustable pilot stage setting, at which point the pilot flow shifts the main poppet to divert excess fluid to the tank. This design delivers smooth, stable pressure regulation with minimal override pressure rise, making it ideal for protecting hydraulic circuits from overpressure while maintaining consistent system performance. The BG-03-32 is a direct-mount, subplate-type valve widely deployed in industrial machinery requiring dependable pressure limiting and unloading functions.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Hydraulic Valve — Pilot Operated Relief Valve (Pressure Control Valve) |
| Model Designation | BG-03-32 |
| Manufacturer | YUKEN |
| Valve Type | Pilot Operated, Balanced Poppet / Subplate Mounting |
| Nominal Size | 03 (ISO/DIN NG6 equivalent mounting pattern) |
| Pressure Adjustment Range | Up to 32 MPa (approx. 320 bar) — code “32” denotes maximum setting |
| Operating Pressure | Standard Industrial Grade (Up to rated 320 bar) |
| Mounting & Connection | Subplate mounting per ISO 6264 / YUKEN standard interface |
| Adjustment Method | Hand knob / hex screw with locknut (optional pressure gauge port) |
| Hydraulic Fluid | Mineral-based hydraulic oil (ISO VG32–VG68) |
Engineering Features & Advantages
- Precision Pressure Regulation: The two-stage pilot operated design ensures accurate cracking pressure and minimal pressure override, maintaining stable system pressure even under varying flow conditions.
- Low Pressure Overshoot: Balanced poppet construction reduces the influence of back pressure and flow forces, delivering consistent relief performance across the full adjustment range.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with hardened internal components and a robust cast body resistant to vibration and thermal cycling.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original YUKEN standards, allowing straightforward retrofit into existing hydraulic systems without rework.
Typical Industrial Applications
The BG-03-32 is a direct-mount, subplate-type valve widely deployed in industrial machinery requiring dependable pressure limiting and unloading functions.
PRODUCT IMAGES






YUKEN BG-03-32 Pilot Operated Relief Valve
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Shop the genuine YUKEN BG-03-32 Pressure Control Valve. This Japan-made hydraulic component features a balanced piston design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.