Product Overview
The SUN HYDRAULICS RPCC-LAN is a pilot-operated 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 utilizes a two-stage pilot-operated working principle to deliver stable pressure regulation and fast response across a wide flow range. The RPCC-LAN functions as a normally closed pressure control element, opening only when system pressure exceeds the pilot setting to divert excess flow to tank, thereby protecting downstream components from overpressure. Its balanced poppet and pilot-stage architecture ensures minimal pressure override and consistent performance, making it a critical safety and control component in industrial hydraulic power units, manifolds, and integrated valve blocks.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Hydraulic Valve — Pilot Operated Relief Valve (Pressure Control) |
| Model Designation | RPCC-LAN |
| Operating Pressure | Standard Industrial Grade (Up to 350 bar / 5000 psi rated) |
| Mounting & Connection | Standard Sun Hydraulics T-11A Cavity, 7/8-14 UNF Cartridge Interface |
| Valve Configuration | Pilot Operated, Normally Closed, Poppet Type |
| Adjustment Style | Adjustable — Screw / Knob with Locknut (LAN Control Option) |
| Flow Capacity | Up to 60 L/min (16 gpm) nominal |
| Seal Material | Buna-N (Nitrile) Standard, Viton Optional |
Engineering Features & Advantages
- Precision Performance: Two-stage pilot-operated design delivers smooth, accurate pressure regulation with minimal pressure override, ensuring stable system pressure even under varying flow demands.
- Industrial Reliability: Built for continuous operation under severe industrial conditions with hardened poppet and seat for long service life and resistance to contamination.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original OEM Sun Hydraulics cartridge cavity T-11A, allowing drop-in replacement without manifold modification.
- Fast Response: Pilot stage provides rapid opening and closing characteristics to protect hydraulic systems from pressure spikes and transient overloads.
- Adjustable Setting: The LAN adjustment option allows precise field adjustment of cracking pressure with a locking mechanism to maintain setpoint under vibration.
Typical Industrial Applications
The SUN HYDRAULICS RPCC-LAN pilot-operated relief valve is widely deployed in hydraulic power units, plastic injection molding machines, metallurgical presses, CNC machine tools, construction and marine hydraulic systems, and integrated manifold blocks where reliable overpressure protection and precise pressure control are essential for system safety and performance.
PRODUCT IMAGES
SUN HYDRAULICS RPCC-LAN Pilot Operated 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 RPCC-LAN Pilot Operated Check Valve. This USA-made hydraulic component features a pilot piston design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.