WanerF BG-03-3-30 – 3/8 Inch Pilot Operated Hydraulic Relief Valve, 7–210 Bar
✅ WanerF BG-03-3-30 is a pilot-operated hydraulic relief valve designed to limit and protect system pressure in hydraulic circuits. It releases hydraulic oil when system pressure reaches the preset level, helping protect pumps, pipelines, actuators and other hydraulic components against overpressure.
✅ The BG-03-3-30 belongs to the WanerF BG Series, featuring sub-plate mounting and valve size 03 for hydraulic systems using the corresponding connection configuration. The pilot-operated design provides stable pressure control for demanding industrial applications.
✅ The “-3-30” configuration indicates pressure adjustment range 3, providing an adjustment range of approximately 7–210 bar, while “-30” represents the standard adjustment type.
✅ During operation, the valve relieves excess hydraulic oil when the system pressure reaches the preset value. This helps maintain system pressure within the required operating range and reduces the risk of hydraulic equipment damage.
✅ The valve features a robust industrial construction suitable for hydraulic machinery and continuous-duty applications where reliable pressure protection is required.

Technical Specifications
✅ Product name: Pilot-operated hydraulic relief valve
✅ Brand: WanerF
✅ Series: BG
✅ Model: BG-03-3-30
✅ Valve type: Pilot-operated relief valve
✅ Mounting type: Sub-plate mounting
✅ Valve size: Size 03
✅ Reference connection size: 3/8 inch
✅ Pressure adjustment range: Approximately 7–210 bar
✅ Equivalent range: Approximately 0.7–21 MPa
✅ Adjustment type: Standard type
✅ Function: System pressure limiting and pressure relief
✅ Construction: Industrial metal hydraulic valve body
✅ Working medium: Hydraulic oil
Advantages
✅ Protects hydraulic systems against overpressure
✅ Pilot-operated design provides stable pressure control
✅ Wide pressure adjustment range
✅ Compact manifold-mounted design
✅ Robust construction for industrial applications
✅ Suitable for continuous hydraulic operation
✅ Convenient adjustment and maintenance
Applications
✅ Hydraulic presses
✅ CNC and machining equipment
✅ Industrial hydraulic systems
✅ Forming and pressing machines
✅ Metalworking and casting machinery
✅ Hydraulic lifting systems
✅ Construction machinery
✅ Automated hydraulic equipment
✅ Hydraulic pump pressure protection systems
✅ Hydraulic manifolds and control units
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