NSH100V-3 Hydrosila Gear Pump 100cc 160bar 2400rpm

Product Overview

The NSH100V-3 (НШ100В-3) is an external gear pump from the Hydrosila MASTER M-3 series, with a displacement of 100 cm³/rev. Manufactured to strict GSTU/GOST standards， this model is specifically designed for the hydraulic systems of MOAZ 7505, 6014, 4048, and 546P heavy-duty dump trucks, scrapers, and tractor units.

Engineered with a high-strength aluminum alloy housing and precision-ground gear pairs， the pump delivers compact structure, light weight, high efficiency, and low noise. NSH series gear pumps are widely used in MTZ, YuMZ, LTZ, DT-75, T-150, T-25 tractors and MAZ, KAMAZ, BelAZ heavy vehicles.

Every unit is manufactured to original equipment specifications, ensuring 100% drop-in interchangeability with genuine Hydrosila NSH100V-3 (НШ100В-3) 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 Hydrosila original equipment. All Hydrosila brand names and model codes are referenced solely to indicate compatibility and interchangeability. This product is manufactured by an independent producer.

Technical Specifications 

• Model Code: NSH100V-3 (НШ100В-3)

• Brand Series: Hydrosila MASTER M-3 (NSH / НШ)

• Product Type: Fixed Displacement External Gear Pump

• Design Standard: GSTU / GOST

• Displacement: 100 cm³/rev

• Continuous Pressure (P₁) : 160 bar

• Intermittent Pressure (P₂) : 210 bar

• Peak Pressure (P₃) : 250 bar

• Maximum Speed (n_max) : 2,400 min⁻¹

• Minimum Speed (n_min) : 500 min⁻¹

• Rated Flow Rate: 173.4 L/min

• Maximum Input Power: 66.4 kW

• Volumetric Efficiency: ≥ 0.95

• Rotation Direction: Right-hand (CW) / Left-hand (CCW) available

• Housing Material: High-strength aluminum alloy

• Seals: NBR (Nitrile rubber), FKM (Viton) optional

• Hydraulic Fluid: Mineral oil

• Operating Temperature Range: -20°C to +80°C

• Weight: 14.5 kg

• Group: Group 4

• Multi-Pump Configuration: Tandem pumps supported (up to 2 sections)

Key Technical Advantages

1. Lightweight Aluminum Alloy Construction

The high-strength aluminum alloy housing delivers a total weight of only 14.5 kg—significantly lighter than traditional cast iron equivalents. It provides excellent pressure containment at 160 bar continuous and 250 bar peak ratings, making it ideal for MOAZ dump trucks and scrapers where weight sensitivity is critical.

2. GOST/GSTU Standard Interface – 100% Drop-In Interchangeability

Manufactured to strict GSTU and GOST mounting dimensions and interface standards. Delivers 100% drop-in interchangeability with genuine Hydrosila NSH (НШ) series pumps—install directly with zero system modifications on MOAZ 7505, 6014, 4048, 546P and other equipment.

3. High Volumetric Efficiency – Stable Flow Output

Volumetric efficiency reaches ≥ 0.95. Precision-machined gear pairs with optimized tooth profiles maintain stable flow output (rated flow 173.4 L/min) across the full pressure range—ensuring reliability and efficiency of critical hydraulic functions such as lifting, steering, and braking.

4. High Power Density – Built for Heavy-Duty Equipment

Maximum input power of 66.4 kW meets the high-power hydraulic demands of MOAZ series heavy-duty dump trucks and scrapers under heavy-load operating conditions. Combined with 250 bar peak pressure, it handles extreme operating conditions with ease.

5. Broad Speed Operating Range

Supports a wide speed range of 500 to 2,400 min⁻¹. Maintains stable flow characteristics from low-speed precision control to high-speed continuous duty.

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 (160 bar), intermittent pressure (210 bar), peak pressure (250 bar), and full speed range—ensuring zero-defect, plug-and-play performance upon installation.

Application Areas

• MOAZ Heavy-Duty Dump Trucks: MOAZ-546P, MOAZ-6014 hydraulic lift and steering systems

• MOAZ Scrapers: MOAZ-7505, MOAZ-4048 self-propelled scraper hydraulic systems

• Tractors: MTZ, YuMZ, LTZ, DT-75, T-150, T-25 series hydraulic systems

• Construction Equipment: Wheel loaders, graders auxiliary hydraulic systems

• Road Construction Machinery: Asphalt pavers, rollers hydraulic systems

• Heavy Trucks: MAZ, KAMAZ, BelAZ heavy vehicle hydraulic systems

Expert Maintenance Tips

1. Fluid Cleanliness Control

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 and bearings.

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. Rotation Direction Confirmation

NSH series supports both right-hand (clockwise) and left-hand (counterclockwise) rotation configurations. The “L” suffix indicates left-hand rotation; unmarked indicates right-hand. Always verify that the drive motor/engine rotation matches the pump before installation.

6. Viscosity & Temperature Monitoring

Recommended operating viscosity: 12 – 100 cSt. During cold starts when viscosity exceeds the recommended range, ensure adequate suction conditions or preheat the fluid to prevent cavitation damage. Recommended operating temperature range: -20°C to +80°C.