Product Overview
The GR47-2V-028CC-FSAEBAC-O-DX is a high-pressure silent internal gear pump from the Italian Settima GR series. This model belongs to the GR47 frame size, with a displacement of 28 cm³/rev.
Founded in 1978 by engineer Cagnani, Settima has been dedicated to producing noise-free, high-tech, and affordable hydraulic pumps. The GR series features a unique helical gear design that combines the efficiency of gear pumps with the silent operation of screw pumps.
Every unit is manufactured to original equipment specifications, ensuring 100% drop-in interchangeability with genuine Settima GR47 series pumps without any system modifications. Each pump undergoes rigorous 100% simulated duty-cycle testing on dedicated test benches to validate pressure-flow-efficiency performance curves.
Brand Disclaimer: This product is a high-quality compatible replacement engineered for full interchangeability with Settima original equipment. All Settima brand names and model codes are referenced solely to indicate compatibility and interchangeability. This product is manufactured by an independent producer and is not an original Settima product.
Technical Specifications
Model Code: GR47-2V-028CC-FSAEBAC-O-DX
Brand Series: Settima GR Series (GR47 Frame Size)
Product Type: Internal Gear Pump / Helical Gear Pump
Series Code: 2V
Displacement: 28.0 cm³/rev
Continuous Pressure: 270 bar
Interval Pressure: 280 bar
Instant/Peak Pressure: 300 bar
Maximum Speed: 3,000 rpm
Minimum Speed: 150 rpm
Connection Type: FSAEBAC
Seal Material (Ports) : O (O-ring)
Rated Flow (@ rated speed) : Approx. 40.3 L/min
Noise Level: Approx. 57 dB(A)
Noise Advantage: 15 dB(A) quieter than standard external gear pumps
Hydraulic Fluid: Compliant with DIN 51524 Part 2 (HLP) and Part 3 (HVLP)
Housing Material: Cast Iron (Body: GGG40, Flanges: GG25)
Seals: NBR / FKM / V optional
Mounting: European standard flange mounting
Self-Priming: Good
Key Technical Advantages
1. Helical Gear Design – Ultra-Low Noise Operation
The unique helical internal gear design delivers ultra-low noise levels as low as 57 dB(A) —approximately 15 dB(A) quieter than standard external gear pumps. Remains quiet even at high speeds, eliminating the need for additional noise reduction measures and reducing system costs.
2. High-Pressure Capability – Industrial-Grade Durability
Rated continuous pressure up to 270 bar, interval pressure 280 bar, and peak pressure 300 bar. Far exceeding standard gear pump pressure ratings, the cast iron housing (GGG40 material) ensures long-term reliability under high-pressure, high-frequency, continuous-duty operations.
3. Wide Speed Range – Maximum Flexibility
Supports a wide speed range of 150 to 3,000 rpm, maintaining stable flow characteristics whether operating at low-speed precision control or high-speed continuous duty. One pump for diverse application requirements—simplifying selection and inventory management.
4. High Efficiency & Excellent Contamination Resistance
The helical internal gear design delivers continuous and smooth pressure output with ultra-high efficiency. Excellent anti-pollution capability ensures longer service life and lower maintenance costs in industrial hydraulic systems.
5. Good Self-Priming & Compact Design
Features good self-priming capability, allowing direct tank mounting to save installation space. The compact European-style design makes it suitable for a wide range of machinery applications.
6. 100% Simulated Duty-Cycle Testing
Every pump is 100% tested on dedicated hydraulic test benches under simulated real-world operating conditions—validating pressure-flow characteristics and efficiency curves at continuous pressure (270 bar), interval pressure (280 bar), peak pressure (300 bar), and full speed range—ensuring zero-defect, plug-and-play performance upon installation.
Application Areas
Machine Tools: CNC machines, grinders, machining center hydraulic systems
Industrial Machinery: Injection molding machines, die-casting machines, press hydraulic systems
Mobile Hydraulics: Construction and agricultural equipment auxiliary hydraulic systems
Noise-Sensitive Applications: Laboratories, medical equipment, urban operation equipment
High-Pressure Systems: Industrial hydraulic systems requiring 270 bar+ pressure
Expert Maintenance Tips
1. Fluid Cleanliness Control
Internal gear pumps are sensitive to fluid contamination. Maintain system fluid cleanliness to ISO 4406 19/17/14 or better. Install a ≤10 μm absolute filtration filter upstream of the inlet port to prevent particle contamination from damaging precision gear pairs.
2. Inlet Line Requirements
Keep suction lines short and straight with adequate diameter—not less than the port size. Recommended suction line flow velocity: ≤1.5 m/s to prevent cavitation from excessive inlet resistance. Inlet pressure must be maintained between 0.8 – 2.0 bar (absolute) .
3. Coupling Alignment Precision
Ensure pump shaft-to-drive shaft coaxiality deviation ≤0.05 mm and angular deviation ≤0.5° during installation. Flexible couplings are strongly recommended. If the drive involves sprockets or V-belt pulleys, an independent outboard bearing MUST be installed to protect pump shaft bearings.
4. First-Start Priming Procedure
Before initial startup, prime the pump by bleeding air through the drain port or a loosened outlet fitting. Perform 2–3 jog starts with the outlet open (no load) until oil fills the pump cavity without air bubbles, then connect the load circuit for full operation.
5. Fluid Type & Viscosity Confirmation
This model is designed for hydraulic fluids compliant with DIN 51524 Part 2 (HLP) and Part 3 (HVLP) specifications. Recommended operating viscosity: 12 – 100 cSt. During cold starts when viscosity exceeds the recommended range, ensure adequate suction conditions or preheat the fluid.
6. Rotation Direction Confirmation
Always verify that the drive motor/engine rotation matches the pump before installation. Settima GR series supports both clockwise (CW) and counterclockwise (CCW) rotation configurations.
