HAWE BVG Series Solenoid Valve | BVG 3 S-G24 BVG 1 R BVG 2 | Leak-Free Seated Valve

The BVG Series solenoid-operated directional seated valves from Chengyuan Hydraulic are zero-leakage control components fully compatible with HAWE industrial standards. Unlike conventional spool valves, the BVG series utilizes a cone-and-seat sealing design, making it the ideal choice for high-pressure systems requiring reliable pressure holding. Covering sizes BVG 1, BVG 2, and BVG 3, these valves support direct pipe mounting. As a cornerstone of Chengyuan’s precision valve range, every unit (such as the BVG 3 S-G24) undergoes 100% simulated high-pressure load testing to guarantee zero-leakage performance at maximum operating pressures, ensuring 100% original-place interchangeability.

Technical Specifications :

• Core Model Series: BVG 1, BVG 2, BVG 3

• Actuation Type: Solenoid Operated

• Max Operating Pressure: 400 bar (40 MPa)

• Max Flow Rate (BVG 1): 20 L/min

• Max Flow Rate (BVG 3): 50 L/min

• Port Sizes: G 1/4, G 3/8 (specification dependent)

• Control Voltages: G24 (24V DC), L24, WG230 (AC via Rectifier Plug)

• Sealing Type: Ball/Cone-seated (Zero-leakage)

• Temperature Range: -40°C to +80°C

Key Technical Advantages:

• Zero-Leakage Seated Design: Instead of a sliding spool, the BVG series uses a steel ball or cone-seated mechanism. In the closed position, the oil path is hermetically sealed, maintaining “zero-drip” performance even at 400 bar, which drastically improves pressure-holding efficiency.

• High-Frequency Response: The short stroke and low mass of the valve core, paired with high-response wet-pin solenoids, ensure stable performance in high-speed control logic with crisp and rapid switching times.

• All-Steel Construction & Hardening: All pressure-retaining components and seals are crafted from premium steel and undergo vacuum heat treatment. This prevents seat deformation under high-pressure spikes and extends service life in harsh environments.

• Compact Inline Mounting: The BVG series supports standard threaded pipe connections with an extremely compact footprint. It can be installed directly into hydraulic lines without complex manifolds, making it an excellent choice for compact retrofits.

Application Areas:

• Clamping Mechanisms: Machine tool fixtures and mold locking where long-term pressure holding is critical.

• Lifting Machinery: Scissor lifts and truck tailgates, preventing load drifting caused by internal leakage.

• Hydraulic Tools: Bolting tools, hydraulic shears, and portable mini-presses.

Expert Maintenance Tips:

• Fluid Cleanliness: Precision seated valves are sensitive to particulates. Maintain system filtration to at least NAS 7 (ISO 4406 18/16/13) to ensure a perfect seal.

• Solenoid Heat Management: Solenoids generate heat during continuous duty. Ensure adequate airflow around the valve and avoid mounting near heat sources to prevent premature coil insulation aging.

• Torque Specifications: When connecting G 1/4 or G 3/8 lines, strictly adhere to the torque values recommended in the official HAWE manual. Over-tightening can cause microscopic body distortion, affecting seat alignment.