F12-030-RS-SV-S-000 Parker Pump | 450 Bar Bent-Axis

Product Overview

The F12-030-RS-SV-S-000-000-P0 is the smallest displacement model in Parker’s F12 series of large-frame bent-axis fixed displacement axial piston pumps/motors, featuring clockwise rotation configuration (RS code), SAE splined shaft (S code) and FKM high-pressure shaft seal (SV code). The manufacturer part number is 3721599.

The F12 series originated from the VOAC product line in Trollhättan, Sweden, and represents Parker’s high-performance bent-axis heavy-duty fixed displacement pump/motor platform, covering displacements from 30 to 250 cm³/rev, operable as either pump or motor in open and closed circuits. The F12 series conforms to current ISO and SAE mounting flange and shaft end configurations, with a very compact cartridge version also available. The F12-030 features a unique 40° bent-axis angle design with spherical piston construction and a 7 or 9-piston configuration, capable of operating at unusually high shaft speeds with continuous operating pressures up to 450 bar for high output power capability.

Model Code Breakdown: The F12-030-RS-SV-S-000-000-P0 code segments are as follows: F12 identifies the F12 series large frame; 030 denotes the 30 cm³/rev displacement; RS indicates clockwise rotation direction (Right rotation) and pump standard duty function; SV denotes SAE 3/4″ 6000 psi flange ports with FKM high-pressure shaft seal; S indicates SAE splined shaft (SAE B 13T 16/32 DP spline); 000 is the standard option combination; P0 indicates preparation for speed sensor. The product weighs approximately 11.8 kg and is manufactured in Sweden.

Every F12-030-RS-SV-S-000-000-P0 unit undergoes 100% simulated operating-condition bench testing prior to shipment. Mounting flange, shaft end and port dimensions comply with ISO 3019-2 and SAE standards and are identical to the original Parker F12-030 series, ensuring true drop-in interchangeability with zero modification required.

Technical Specifications

F12 Series Frame Size Specifications:

• F12-030 (This Model): Displacement 30.0 cm³/rev (1.83 in³/rev), max intermittent pressure 480–500 bar, max continuous pressure 420–450 bar, max intermittent speed 7,300–8,600 rpm, max continuous speed 6,700–7,300 rpm, theoretical torque at 100 bar 47.6 N·m, max intermittent flow 219 L/min

• F12-040: Displacement 40.0 cm³/rev (2.44 in³/rev), max intermittent pressure 480–500 bar, max continuous pressure 420–450 bar, max intermittent speed 6,700–6,900 rpm, max continuous speed 6,100–6,300 rpm, theoretical torque at 100 bar 63.6 N·m, max intermittent flow 268 L/min

• F12-060: Displacement 59.8 cm³/rev (3.65 in³/rev), max intermittent pressure 480–500 bar, max continuous pressure 420–450 bar, max intermittent speed 5,800–6,400 rpm, max continuous speed 5,300–5,800 rpm, theoretical torque at 100 bar 95.1 N·m, max intermittent flow 347 L/min

• F12-080: Displacement 80.4 cm³/rev (4.91 in³/rev), max intermittent pressure 480–500 bar, max continuous pressure 420–450 bar, max intermittent speed 5,300–5,500 rpm, max continuous speed 4,800 rpm, theoretical torque at 100 bar 127.6 N·m, max intermittent flow 426 L/min

• F12-090: Displacement 93.0 cm³/rev (5.68 in³/rev), max intermittent pressure 420 bar, max continuous pressure 350 bar, max intermittent speed 5,000–5,100 rpm, max continuous speed 4,600 rpm, theoretical torque at 100 bar 147.7 N·m, max intermittent flow 465 L/min

• F12-110: Displacement 110.1 cm³/rev (6.72 in³/rev), max intermittent pressure 480 bar, max continuous pressure 420 bar, max intermittent speed 4,800 rpm, max continuous speed 4,400 rpm, theoretical torque at 100 bar 174.8 N·m, max intermittent flow 528 L/min

• F12-125: Displacement 125.0 cm³/rev (7.63 in³/rev), max intermittent pressure 480 bar, max continuous pressure 420 bar, max intermittent speed 4,600 rpm, max continuous speed 4,200 rpm, theoretical torque at 100 bar 198.5 N·m, max intermittent flow 575 L/min

• F12-150: Displacement 149.8 cm³/rev (9.14 in³/rev), max intermittent pressure 420–480 bar, max continuous pressure 350–420 bar, max intermittent speed 3,500–4,000 rpm, max continuous speed 3,200 rpm, theoretical torque at 100 bar 238.0 N·m, max intermittent flow 525 L/min

• F12-250: Displacement 242 cm³/rev (14.8 in³/rev), max intermittent pressure 420 bar, max continuous pressure 350 bar, max intermittent speed 3,000 rpm, max continuous speed 2,700 rpm, theoretical torque at 100 bar 384.5 N·m, max intermittent flow 726 L/min

F12-030-RS-SV-S-000-000-P0 Additional Specifications:

• Model Code: F12-030-RS-SV-S-000-000-P0 (Part No. 3721599)

• Type: Bent-axis axial piston fixed displacement pump/motor

• Displacement: 30.0 cm³/rev (1.83 in³/rev), fixed and non-adjustable

• Max Intermittent Pressure: 480–500 bar (6,960–7,252 psi)

• Max Continuous Pressure: 420–450 bar (6,092–6,527 psi)

• Max Intermittent Speed: 7,300–8,600 rpm

• Max Continuous Speed: 6,700–7,300 rpm

• Min Continuous Speed: 50 rpm

• Theoretical Torque (at 100 bar): 47.6 N·m (35.1 lb-ft)

• Max Intermittent Flow: 219 L/min

• Max Continuous Flow: 201 L/min

• Number of Pistons: 7 or 9

• Rotation: Clockwise (Right hand rotation)

• Function: Pump standard duty

• Shaft Seal Material: FKM fluoro-rubber high pressure (SV code)

• Mounting Flange: SAE B – 4 bolt flange, 101.6 mm (4.0″) flange diameter

• Shaft Type: SAE splined shaft, SAE B 13T 16/32 DP

• Port Connections: SAE 3/4″ 6000 psi flange ports (ISO 6162)

• Mounting Mode: SAE 4-bolt mounting flange

• Operating Temperature Range: -40°C to +115°C

• Hydraulic Fluid: Mineral oil (ISO VG46/68), synthetic oil, water glycol

• Optimum Viscosity: 15–30 cSt (rated 8–1,000 cSt)

• Permissible Contamination: ISO 20/18/13

• Moment of Inertia: 0.0017 kg·m²

• Weight: ~11.8 kg

• Country of Origin: Sweden

Key Technical Advantages

1. 40° Bent-Axis Angle with Spherical Piston Design for High Starting Torque and Compact Construction

The F12-030 employs Parker’s signature 40° bent-axis angle design, with the drive shaft and cylinder barrel at a 40° angle, enabling an exceptionally compact, lightweight construction (only about 11.8 kg) at equivalent displacement. Spherical pistons with laminated piston rings minimize internal leakage and provide excellent thermal shock resistance. This design delivers high torque at startup and low speeds, with theoretical torque of 47.6 N·m at 100 bar.

2. Timing Gear Synchronization and High Vibration Tolerance

The unique timing gear design synchronizes the drive shaft and cylinder barrel, enabling the F12-030 to withstand high G-forces and torsional vibration. Heavy-duty tapered roller bearings support the output shaft, permitting substantial external axial and radial shaft loads (maximum radial load 1,900 kg), extending bearing life and overall reliability. The pump version has highly engineered valve plates for increased self-priming speed and low noise.

3. High Speed Capability — 7,300 rpm Continuous

The F12-030 achieves maximum continuous speed of 6,700–7,300 rpm and maximum intermittent speed up to 8,600 rpm, making it one of the highest-speed frame sizes in the F12 series. This speed level leads among comparable bent-axis pumps/motors, making it particularly suitable for high-speed cutting, saw drives and wood processing equipment. F12-030 pump can be equipped with a power boost device that reduces mechanical losses by up to 15% in high-speed applications.

4. Pump/Motor Dual-Purpose and Open/Closed Circuit Compatibility

The F12-030 can operate as either a pump or a motor, suitable for hydrostatic drives in open and closed circuits. FKM fluoro-rubber high-pressure shaft seals offer excellent oil resistance and temperature resistance with a range of -40°C to +115°C. Case drain temperature is affected by pressure and speed and is always higher than circuit temperature—system temperature must not exceed 115°C at any point. ISO/Cartridge/SAW and SAE versions are available for different system installation requirements.

5. 100% Simulated Load Testing & Drop-In Interchangeability

Each F12-030-RS-SV-S-000-000-P0 unit is bench-tested under simulated operating conditions prior to dispatch, covering pressure cycling, speed stepping and thermal shock. Mounting flange, shaft end and port dimensions comply with ISO 3019-2 and SAE standards, matching the original Parker F12-030 series exactly, enabling direct replacement without any interface modification.

Application Areas

The F12-030 is deployed across demanding applications:

• Forestry: saw drives, feller bunchers, skidders, forwarders

• Construction: cranes, mowers, aerial work platforms, skid steer loaders, off-highway trucks, fan drives

• Marine: deck cranes, constant tension winches, hatch covers

• Oil & Gas: nitrogen pumpers, frac trucks, coil tubing

• Industrial: aircraft test stands, dust collectors, machine tool hydraulic systems

Expert Maintenance Tips

1. Pre-Installation: Verify oil cleanliness meets ISO 20/18/13 or better. Do not connect the pump/motor during flushing. Ensure coupling alignment deviation does not exceed 0.05 mm to prevent abnormal bearing wear and shaft seal leakage.

2. Drain Port Management: The drain line must return to the reservoir independently—never share with other return lines. Drain back pressure must not exceed 2 bar. The drain line end must remain submerged. The housing must be filled with oil before first startup. When the pump is self-priming, the pump installation position should be lower than the minimum oil level in the tank.

3. Oil Cleanliness and Temperature Control: VG 46 hydraulic oil is recommended. Operating temperature should be kept below 80°C—system temperature must not exceed 115°C at any point. FKM seals are rated for -40°C to +115°C. Replace hydraulic oil and filter after the first 500 hours, then follow a 2,000-hour or annual replacement cycle.

4. Leakage Monitoring: Measure drain flow at normal operating temperature. Abnormally high drain flow indicates internal piston group or valve plate wear—immediate service is required.

5. Speed Sensor Interface (P0): This model is prepared for a speed sensor (P0 code). Users can install a speed sensor according to system requirements for closed-loop speed control. When installing the speed sensor, ensure the gap between the sensor and the measurement target meets Parker technical manual specifications.