Product Overview
The SUN HYDRAULICS PBFB-LAN is a direct-acting, cartridge-style pressure reducing/relieving valve designed to maintain a constant reduced outlet pressure regardless of fluctuations in inlet pressure or downstream flow demand. Manufactured by Sun Hydraulics, a global leader in high-performance screw-in hydraulic cartridge valves, the PBFB-LAN operates on a balanced-poppet, spring-biased principle that provides smooth, stable pressure regulation across the full operating range. As a pressure control valve, it regulates secondary circuit pressure by throttling flow to the reduced pressure port while simultaneously relieving excess pressure back to tank, making it ideal for clamping circuits, actuator sequencing, and any application requiring a dependable, repeatable reduced pressure setting in industrial hydraulic systems.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Hydraulic Valve — Pressure Control Valve (Pressure Reducing/Relieving, Cartridge Style) |
| Model Designation | PBFB-LAN |
| Manufacturer | Sun Hydraulics |
| Operating Pressure | Standard Industrial Grade (Up to 350 bar / 5000 psi rated inlet) |
| Adjustment Style | “L” Control — Adjustable, screw-type with locknut |
| Mounting & Connection | Standard Sun Hydraulics T-11A cavity, 7/8-14 UNF cartridge thread |
| Seal Material | Buna-N (Nitrile) standard; Viton available |
| Flow Capacity | Up to 30 L/min (8 gpm) nominal |
Engineering Features & Advantages
- Precision Pressure Regulation: Balanced-poppet design delivers accurate, repeatable reduced pressure settings with minimal hysteresis and excellent stability across varying flow demands.
- Integrated Relieving Function: Automatically relieves excess downstream pressure back to tank, protecting sensitive components from pressure spikes and thermal expansion.
- Compact Cartridge Construction: Screw-in cartridge format minimizes manifold space requirements and simplifies installation, service, and replacement in dense hydraulic circuits.
- Industrial Reliability: Hardened, precision-machined internal components are built for continuous operation under severe industrial conditions, ensuring long service life and reduced downtime.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original Sun Hydraulics PBFB-LAN specifications and standard T-11A cavity tooling.
Typical Industrial Applications
The SUN HYDRAULICS PBFB-LAN pressure reducing valve is widely deployed in demanding industrial hydraulic circuits, including plastic injection molding machines where precise clamp and injection pressure control is critical, metallurgical presses and rolling mills requiring stable secondary circuit pressures, CNC machine tools and machining centers with hydraulic workholding and tool clamping systems, and construction, agricultural, and marine hydraulic systems where reliable reduced-pressure control protects actuators and downstream components
PRODUCT IMAGES
SUN HYDRAULICS PBFB-LAN Pressure Reducing 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 PBFB LAN 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.