Product Overview
The SUN Hydraulics RBAP-LBN is a direct-acting, poppet-type relief valve designed for precise pressure control in demanding hydraulic circuits. Manufactured by Sun Hydraulics, a global leader in high-performance cartridge valve technology, this valve functions as a normally closed pressure-limiting device that protects hydraulic systems from overpressure conditions. When system pressure reaches the valve’s predetermined setting, the poppet lifts off its seat, diverting excess flow to tank and thereby maintaining safe operating pressure. The RBAP-LBN is a screw-in cartridge valve intended for use in Sun Hydraulics’ standardized cavities, offering reliable, repeatable pressure regulation in a compact, leak-resistant package. Its balanced poppet design ensures stable operation across a wide range of flows and pressures, making it a preferred choice for industrial and mobile hydraulic systems requiring dependable pressure protection.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Hydraulic Valve – Pressure Control Valve (Relief Valve) |
| Model Designation | RBAP-LBN |
| Operating Pressure | Standard Industrial Grade (Up to 350 bar / 5000 psi, dependent on adjustment range) |
| Mounting & Connection | Screw-in cartridge, Sun Hydraulics standard cavity (T-11A or equivalent) |
| Valve Type | Direct-acting, poppet-type relief valve |
| Adjustment Style | Internal hex adjustment (LBN adjustment option) |
| Flow Capacity | Up to 30 L/min (8 gpm) nominal |
| Seal Material | Buna-N (NBR) standard; Viton available on request |
| Fluid Compatibility | Mineral-based hydraulic oil, phosphate esters, and synthetic fluids |
Engineering Features & Advantages
- Precision Pressure Control: The direct-acting poppet design provides accurate and repeatable pressure limiting, ensuring system protection with minimal hysteresis and fast response to pressure spikes.
- Balanced Poppet Construction: Minimizes the effects of backpressure and flow forces, delivering stable performance across varying flow rates and pressure conditions.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with hardened, precision-machined components that resist wear and contamination.
- Direct Fit Replacement: Exact dimensional and functional compatibility with Sun Hydraulics standard cavities, allowing drop-in replacement without modification.
- Compact Cartridge Design: Space-saving screw-in configuration simplifies installation and maintenance in manifold and integrated hydraulic systems.
Typical Industrial Applications
The SUN Hydraulics RBAP-LBN
PRODUCT IMAGES
SUN HYDRAULICS RBAP-LBN Relief 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 SUN HYDRAULICS RBAP LBN Pilot Operated Check Valve. This USA-made hydraulic component features a poppet-type design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.