Product Overview
The Danfoss RV8-8-S-0-15/1.75 (Part No. 12003729) is a direct-acting, spring-loaded pressure relief valve engineered for precise overpressure protection in industrial hydraulic systems. As a member of the Danfoss RV8 series, this valve operates on a poppet-and-spring working principle: when system pressure at the inlet port exceeds the valve’s preset cracking pressure, the poppet lifts off its seat, diverting excess flow to the tank port and thereby limiting the maximum pressure within the circuit. The “8” size designation indicates a nominal flow capacity of 8 L/min, while the “15” denotes a pressure adjustment range up to 150 bar and the “1.75” suffix specifies a factory-set cracking pressure of 1.75 bar. This compact cartridge-style valve is designed for manifold or inline mounting, providing reliable, repeatable pressure control in demanding industrial hydraulic circuits where system integrity and component protection are critical.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Hydraulic Valve – Pressure Control Valve (Direct-Acting Pressure Relief Valve) |
| Model Designation | RV8-8-S-0-15/1.75 |
| Manufacturer Part Number | 12003729 |
| Nominal Flow Capacity | 8 L/min (size 8) |
| Pressure Adjustment Range | Up to 150 bar (range designation “15”) |
| Factory Set Cracking Pressure | 1.75 bar |
| Operating Pressure | Standard Industrial Grade (Up to 150 bar rated) |
| Actuation Type | Direct-acting, spring-loaded poppet |
| Mounting & Connection | Cartridge-style, standard Danfoss RV8 interface (manifold or inline body) |
| Seal Material | NBR (Buna-N) standard; compatible with mineral-based hydraulic fluids |
| Fluid Compatibility | Mineral oil, HLP/HM hydraulic fluids per DIN 51524 |
Engineering Features & Advantages
- Precision Performance: The hydraulic valve – pressure control valve (direct-acting pressure relief valve) delivers precise, repeatable performance with low hysteresis and stable control across the full working range.
- Industrial Reliability: Designed for dependable long-term operation in demanding industrial environments, with quality bearings and sealing systems ensuring extended maintenance intervals.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original DANFOSS OEM standards, ensuring drop-in replacement without modification to existing manifolds or piping.
- Rated Capability: Rated for pressure ratings up to 150 bar and flow rates up to 8 L/min, supporting stable operation across the full working range.
Typical Industrial Applications
This compact cartridge-style valve is designed for manifold or inline mounting, providing reliable, repeatable pressure control in demanding industrial hydraulic circuits where system integrity and component protection are critical.
PRODUCT IMAGES

DANFOSS RV8-8-S-0-15/1.75 / 12003729 Pressure 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 DANFOSS RV8-8-S-0-15/1.75 / 12003729 Pilot Operated Relief Valve. This Denmark-made hydraulic component features a precise pressure regulation design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.