35V35A 1C22R Vickers by Danfoss Vane Pump 112 cc/rev

Product Overview

The 35V35A 1C22R is a Vickers by Danfoss V Series fixed-displacement industrial vane pump based on the 35V frame.

Danfoss describes its Vickers industrial vane-pump portfolio as compact, quiet and serviceable, with solutions for industrial and mobile hydraulic applications. The V Series uses an intra-vane cartridge design and is available in single, double and thru-drive configurations.

The exact 35V35A 1C22R configuration is directly identified in Danfoss PowerSource:

• 35: Series designation
• V: Vane pump
• 35: 35 GPM ring capacity
• A: 4-bolt flange inlet and outlet
• 1: 1-5/16-in square-key straight shaft
• C: Outlet inline with inlet
• 22: Design No. 22
• R: Clockwise rotation viewed from the shaft end.

Danfoss’s official V Series technical information specifies the 35V35 displacement as 112 cm³/rev (6.83 in³/rev). The applicable 35V rating reaches 172 bar (2500 psi) with a maximum speed of 1800 r/min.

For aftermarket replacement, the complete model code should be matched rather than only the 35V35 designation. Our replacement units can be engineered around the original shaft, port orientation, mounting and rotation configuration and then subjected to 100% simulated operating-condition testing before shipment.

Technical Specifications

Primary Model: 35V35A 1C22R

• Brand: Vickers by Danfoss
• Series: V Series
• Model: 35V35A 1C22R
• Pump Type: Fixed-displacement vane pump
• Frame Size: 35V
• Ring Capacity: 35 GPM
• Geometric Displacement: 112 cm³/rev
• Control: Fixed displacement
• Maximum Speed: 1800 r/min
• Maximum Working Pressure: 172 bar (2500 psi)
• Shaft: 1 — 1-5/16-in square-key shaft
• Rotation: R — clockwise, viewed from shaft end
• Port Connection: A — 4-bolt flange inlet and outlet
• Outlet Position: C — outlet inline with inlet
• Design: 22
• Mounting: Flange mounting
• Housing Material: Cast iron, as identified in published 35V product records.
• Product Height: 152.4 mm (6.00 in)
• Product Length: 258.1 mm (10.16 in)
• Product Width: 212.9 mm (8.38 in)
• Flange System: SAE 4-bolt flange; the official installation documentation identifies the applicable 35V FL-10 / FL-16 flange series.
• Weight: Not individually displayed in the currently retrieved official PowerSource record for 35V35A 1C22R; therefore no unsupported weight is stated.
• Peak Pressure: The official material uses maximum working pressure rather than a separate universal peak-pressure value for this configuration. The published working-pressure rating is 172 bar.

Other 35V Displacements

The official V Series technical information defines the following 35V displacement codes:

• 35V25: 81 cm³/rev
• 35V30: 97 cm³/rev
• 35V35: 112 cm³/rev
• 35V38: 121 cm³/rev

Therefore, the supplied 35V25A, 35V35A and 35V38A designations represent different displacements within the same 35V frame family.

Model Verification

35V25A-1D-22R

The official V Series coding system confirms the configuration structure:

• 35V25: 25 GPM ring capacity
• Geometric displacement approximately 81 cm³/rev
• 1: 1-5/16-in square-key shaft
• D: Outlet 90° clockwise from inlet
• 22: Design 22
• R: Clockwise rotation.

The hyphenated form 35V25A-1D-22R in the supplied title corresponds structurally to the official-style 35V25A 1D22R coding format.

35V38A 11A22R

Danfoss PowerSource directly identifies:

• 35V38
• 38 GPM
• 121 cm³/rev
• 11: 14T 12/24 MDF spline
• A: Outlet opposite inlet
• 22: Design 22
• R: Clockwise
• 4-bolt flange
• Cast iron
• 172 bar maximum working pressure.

35VQ45A-1C20R

This designation requires further verification.

Danfoss documentation confirms 35VQ configurations using 25, 30, 35 and 38 GPM ring sizes, while no standard 35VQ45 single-pump product was found in the official material reviewed. Official PowerSource records do contain 35VQ combinations such as 3525VQ and 4535VQ, where 45V identifies a different frame size.

Therefore, 35VQ45A-1C20R should not be published as a fully verified standard model without checking the original nameplate. It may refer to a 35VQ38 configuration or a 45VQ45 configuration.

Key Technical Advantages

1. Intra-Vane Cartridge Architecture

The Vickers by Danfoss V Series uses an intra-vane cartridge design, which Danfoss associates with the family’s quiet operation, serviceability and long operating life.

From an engineering perspective, the cartridge architecture allows the primary working components to be serviced as an integrated unit, supporting efficient maintenance and performance restoration.

2. High 112 cm³/rev Displacement

The 35V35A 1C22R provides a published geometric displacement of 112 cm³/rev.

At 1800 r/min, the theoretical displacement flow is:

112 × 1800 / 1000 = 201.6 L/min

Therefore, the theoretical geometric flow is approximately 201.6 L/min before accounting for volumetric losses.

Actual delivered flow varies with pressure, viscosity, temperature, speed and volumetric efficiency, so this value should not be treated as a universal guaranteed output.

3. Low-Noise Flow Characteristics

Danfoss specifies a 12-vane system for the V Series and states that it generates low-amplitude flow pulsations, contributing to lower overall system noise.

This is particularly valuable in:

• Machine tools
• Presses
• Injection molding machinery
• Hydraulic power units

where pump-generated pulsation and acoustic noise can affect the machine environment.

4. Hydraulic Balancing

The V Series uses hydraulic balancing to reduce internally generated hydraulic loading on the shaft and bearings. Danfoss lists long operating life and reliability as key characteristics of the V Series.

5. SAE 4-Bolt Flange Interface

The 35V35A 1C22R uses SAE 4-bolt flange inlet and outlet connections. This provides a defined industrial mounting interface and supports rigid hydraulic piping arrangements.

6. Complete Model Code Supports Retrofit Accuracy

For 35V35A 1C22R:

1 + C + 22 + R

define important mechanical configuration elements including shaft, outlet position, design and rotation.

In particular:

C = outlet inline with inlet

This can be critical during retrofit because two pumps with identical displacement may still be mechanically incompatible if shaft or port orientation differs.

7. Service-Friendly Cartridge Concept

The V Series cartridge architecture supports targeted maintenance and is one reason Danfoss emphasizes serviceability as a core product characteristic.

Application Areas

Danfoss’s official Vickers industrial vane-pump application information includes:

• Oil & Gas
• Construction Equipment
• Die Casting
• Presses
• Primary Metals
• Molding Machines
• Hydraulic Power Units
• Material Handling Machines
• Lift Trucks.

The large-displacement 35V35A 1C22R is particularly suitable for:

• Large hydraulic power units
• Metal-forming presses
• Die-casting equipment
• Injection molding machinery
• Primary-metal processing equipment
• Material-handling systems
• Industrial production lines
• Oil and gas hydraulic equipment

Expert Maintenance Tips

1. Verify the Complete Model Number

Before installation, verify:

35V35A + 1 + C + 22 + R

Pay particular attention to:

Shaft → Outlet Position → Design → Rotation

Danfoss PowerSource directly defines these configuration elements in the product record.

2. Confirm Rotation

R = clockwise rotation, viewed from the shaft end.

Verify motor and pump rotation before commissioning.

3. Protect the Inlet Circuit

For a 112 cm³/rev pump, inlet flow requirements are substantial. Poor suction conditions can increase:

• Cavitation risk
• Noise
• Flow instability
• Internal wear
• Temperature rise

The suction circuit should therefore minimize unnecessary restriction, sharp bends and undersized piping.

4. Do Not Treat 172 Bar as a Universal Continuous Design Target

The published 172 bar value represents the applicable maximum working-pressure rating. Actual continuous operation should be evaluated together with fluid condition, speed, temperature and duty cycle.

5. Maintain Drive Alignment

Check:

• Motor-to-pump concentricity
• Coupling alignment
• Key/keyway fit
• Axial movement
• Mounting-face condition

Misalignment can impose excessive loads on the shaft, bearings and shaft seal.

6. Maintain Hydraulic Cleanliness

Danfoss publishes recommended contamination levels for Vickers hydraulic components. Clean fluid and effective filtration are important for protecting vane, rotor and internal working surfaces.

7. Commission Progressively

After installation, use:

Prime → No-Load Rotation → Flow Check → Pressure Build-Up → Rated Load

Monitor noise, vibration, flow, oil temperature, shaft-seal condition and flange leakage.

8. Use 100% Simulated Operating-Condition Testing

For replacement of 35V25 / 35V35 / 35V38 configurations, dimensional inspection alone is not sufficient.

Recommended verification includes:

Displacement → Rotation → Pressure → Flow → Leakage → Noise → Temperature Rise

This helps establish both mechanical interchangeability and functional compatibility.