Product Overview
The Danfoss 407AA00033A / 1UL60P35S is a precision-engineered hydraulic unloading valve belonging to the Danfoss 1UL series of pressure control valves. Designed for industrial hydraulic systems, this valve functions as a pilot-operated unloading and sequence control component that automatically diverts pump flow to the reservoir (tank) when a predetermined system pressure is achieved, thereby minimizing power consumption, reducing heat generation, and extending the service life of the hydraulic power unit. The 1UL60P35S designation indicates a nominal size 60 valve with a specific pressure setting range and adjustment configuration. Manufactured to Danfoss’s stringent quality standards, this unloading valve is a direct-fit replacement for OEM installations and is widely deployed in demanding industrial circuits requiring reliable pressure management and energy-efficient pump unloading.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Hydraulic Valve — Pressure Control Valve (Unloading Valve) |
| Model Designation | 407AA00033A / 1UL60P35S |
| Manufacturer | Danfoss |
| Series | 1UL Series — Pilot-Operated Unloading / Sequence Valve |
| Nominal Size | NG60 (per model code 1UL60) |
| Operating Pressure | Standard Industrial Grade (Up to rated bar per Danfoss 1UL series specification) |
| Pressure Adjustment | Adjustable via pressure setting element (P35 pressure range designation) |
| Actuation Type | Pilot-Operated / Hydraulically Actuated |
| Mounting & Connection | Standard ISO / Manufacturer Interface (Subplate or Inline Configuration) |
| Fluid Compatibility | Mineral-based hydraulic oils per DIN 51524 / ISO VG grades |
Engineering Features & Advantages
- Precision Pressure Control: Pilot-operated spool design delivers accurate and repeatable unloading pressure settings, ensuring stable system pressure regulation and precise sequence control across varying load conditions.
- Energy-Efficient Pump Unloading: Automatically diverts pump output to tank upon reaching the set pressure, reducing power consumption, minimizing heat buildup, and lowering wear on the hydraulic power unit during idle or low-demand phases.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with robust construction and wear-resistant internal components for extended service life.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original Danfoss standards, allowing straightforward retrofit into existing hydraulic systems without rework.
Typical Industrial Applications
Manufactured to Danfoss’s stringent quality standards, this unloading valve is a direct-fit replacement for OEM installations and is widely deployed in demanding industrial circuits requiring reliable pressure management and energy-efficient pump unloading.
PRODUCT IMAGES
Danfoss 407AA00033A / 1UL60P35S Unloading Valve
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- Authentic & Fully Tested: 100% bench tested for hydraulic response, pressure rating, and null-bias stability before dispatch.
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Shop the genuine Danfoss 407AA00033A / 1UL60P35S Hydraulic Solenoid Directional Valve. This Denmark-made 24V DC hydraulic component features a spool-type design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.