Guangdong Sheungchak Hydraulic Technology Co., Ltd. is one of the leading manufacturers and suppliers of pvm098 in China. With abundant experience, we warmly welcome you to buy high-grade pvm098 for sale here from our factory. All customized products are with high quality and competitive price. Contact us for quotation.
PVM098 and PVH098 are easy to mix up on an enquiry. Both say 98.3 cc. Both can arrive as a dark, square-looking piston pump in a poor phone photo. Stop at the family letters: PVM is the 315 bar industrial range described here. A PVH code or control chart cannot be pasted onto it.
The next question is usually "E or M?" An E build is the familiar 1800 rpm version. Multiply displacement by speed and you get 176.9 L/min; the catalog gives about 170 L/min effective flow at 315 bar. M is the fast build. Its 2200 rpm, 200 L/min point assumes 1 bar absolute at the inlet.
That inlet line needs to stay beside the speed line. With only 0.85 bar absolute available, the M table drops back to 1800 rpm. Tank height matters. So do pipe bore, elbows, a cold filter and oil that is too heavy at start-up. A pressure reading from the tank is no substitute for one taken at the pump port.
Here is a complete published example: PVM-098-E-R-10-G-S-2-A-070-00-000-E-A-B. It calls out the 098 displacement, E speed group, right rotation, keyed shaft, SAE C mount, side connections and its pressure control. Useful for learning the code; dangerous as a blind stock number for an unknown machine.
Send the entire plate for a PVM098 hydraulic pump match. We also want separate photos of the shaft, pilot, main ports, drain, controller and back. If a second pump is attached, remove the cover from the story-show us the adapter and coupling. Tell us whether the old noise was only cold or continued after the oil warmed.
Key Features & Benefits
- Motor speed stays fixed while the swashplate changes pump delivery.
- 315 bar is the working reference. The 350 bar entry is a peak shorter than half a second.
- E and M are not marketing labels; their speed and inlet-pressure tables differ.
- At cut-off, the pressure compensator pulls the rotating group toward minimum stroke.
- Load sense follows a remote demand line. A power limiter answers a different problem: available shaft power.
- A mechanical stop can trim the top displacement for a machine that needs less flow.
- Thru-drive? Check coupling, total torque, alignment, support and the room behind the pump.
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Technical Data
|
Item |
PVM098 Catalog Data |
|
Pump construction |
Open-circuit, in-line variable displacement axial piston pump |
|
Geometric displacement |
98.3 cm³/rev (6.00 in³/rev) |
|
Nominal operating pressure |
315 bar (4568 psi) |
|
Peak pressure |
350 bar (5076 psi), momentary peak less than 0.5 second |
|
Standard E maximum speed |
1800 rpm |
|
Standard E theoretical flow at 1800 rpm |
Approx. 176.9 L/min (46.7 US gpm), before volumetric loss |
|
Standard E effective catalog flow at 1800 rpm |
Approx. 170 L/min (44.9 US gpm) at 315 bar |
|
Standard E effective flow at 1500 / 1200 / 1000 rpm |
Approx. 141 / 112 / 92 L/min at 315 bar |
|
High-speed M maximum speed |
2200 rpm at 1 bar absolute inlet pressure |
|
High-speed M speed at 0.85 bar absolute inlet |
1800 rpm |
|
High-speed M theoretical flow at 2200 rpm |
Approx. 216.3 L/min (57.1 US gpm), before volumetric loss |
|
High-speed M effective catalog flow at 2200 rpm |
Approx. 200 L/min (52.8 US gpm) at 315 bar |
|
Approximate mass |
55 kg (121 lb), depending on configuration |
|
Published pressure-control response, standard E |
Approx. 65 ms on-stroke and 25 ms off-stroke under catalog test conditions |
|
Published pressure-control response, high-speed M |
Approx. 85 ms on-stroke and 24 ms off-stroke under catalog test conditions |
|
Example front mounting |
SAE C four-bolt flange; confirm the code |
|
Example shaft |
SAE C-C straight keyed shaft on PowerSource assembly 12007990 |
|
Rotation |
Right or left depending on the ordering code, viewed from the shaft end |
|
Typical installation choices |
Side or rear ports, single pump or thru-drive, several control configurations |
Write 350 bar / <0.5 s in one box on the commissioning sheet. It is not the compensator setting. Normal pressure planning starts from 315 bar and the machine's relief scheme. A half-second peak does not excuse dirty oil, thick oil, inlet starvation or a restricted case drain.
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How It Works
The shaft takes the cylinder barrel around with it. Pistons circle inside that barrel, while their slippers stay against the sloping plate. A bore fills as its piston comes out. On the opposite half-turn the piston goes in and sends the oil through the pressure window. The port plate keeps inlet and outlet from meeting directly.
Now move the angle. A steep plate gives a long piston stroke and brings delivery close to 98.3 cc per turn. Flatten the plate and each piston moves less oil, even though the electric motor has not slowed. On a press that can mean quick approach first, followed by lower flow as the tooling meets the work.
The ordered controller decides when that angle changes. Pressure compensation reacts at cut-off; load sense also reads the valve's signal line; a power control backs away as input demand grows. None replaces the main relief. None makes a small suction pipe larger. The E or M inlet condition and a free case drain remain part of the installation.
Model Range
|
PVM098 Version / Option |
Control or Configuration |
Main Selection Point |
|
PVM098-E |
Standard-speed industrial configuration |
Up to 1800 rpm; confirm inlet condition and valve plate |
|
PVM098-M |
High-speed configuration |
Up to 2200 rpm only with the published inlet condition |
|
PVM098 pressure compensator |
Pressure cut-off control |
Match the setting code and circuit relief protection |
|
PVM098 load-sensing control |
Pressure and flow demand control |
Verify load-sense margin, signal line and valve system |
|
PVM098 industrial compensator |
Industrial response configuration |
Match response and adjustment range to the original |
|
PVM098 power limiter |
Input-power management |
Set the power curve for the driving motor or engine |
|
PVM098 remote-pressure control |
Remote cut-off adjustment |
Confirm pilot pressure range and connection |
|
PVM098 displacement stop |
Adjustable maximum delivery |
Record the required flow limit before shipment |
|
PVM098 thru-drive |
Auxiliary rear-drive arrangement |
Check rear flange, spline, transmitted torque and overall length |
|
PVM098 single-pump build |
Closed rear cover |
Confirm that no auxiliary pump interface is required |
The table gets us to a version, not to a finished part number. Keep reading the string for speed group, rotation, shaft, flange, port direction and size, controller, setting, stop, rear drive and suffix. "Looks the same" is not one of those fields.
Applications & Industries
PVM098 is most convincing on an industrial cycle that actually uses its pressure class: move, work, hold, repeat. The five groups below fit that pattern. The pump code still comes from the cycle and plumbing, not from the industry name.
Metal Forming
Machine Tools
Plastics Processing
Test & Simulation
Marine & Offshore
|
Industry |
Equipment Examples |
What the Pump Does |
|
Metal Forming |
Hydraulic presses, metal shears, tube benders, transfer lines |
Supplies rapid approach, then trades flow for pressure during forming or cutting. |
|
Machine Tools |
Machining centers, rotary tables, clamping stations, special-purpose machines |
Feeds clamp and index movements and backs off while the fixture holds. |
|
Plastics Processing |
Blow-molding machines, mould-clamping systems, material-preparation units |
Changes output as the machine moves through closing, process support and handling. |
|
Test & Simulation |
Flight simulators, hydraulic test stands, fatigue rigs |
Follows a changing motion-and-load profile without circulating maximum flow continuously. |
|
Marine & Offshore |
Deck machinery, winch power units, offshore service skids |
Powers open-circuit handling functions where a compact high-pressure source is needed. |
About Us
SheungChak builds hydraulic piston pumps, motors and replacement parts under our own OEM production program. The PVM098 hydraulic pump supplied from us is produced as a SheungChak product.
Small pumps can actually be annoying replacement jobs. There is less room to hide a mistake. Wrong rotation and A/B swap. Wrong shaft. Wrong compensator. A 0.75-inch shaft can still be wrong if the key or projection does not match.
Our usual check is quick: nameplate, shaft photo, rear ports, controller side. For an old unit with no readable code, send the pilot diameter too. Around 82.5 mm immediately tells us a lot.
Factory experience: 20+ years
Main products: Piston pumps, piston motors and hydraulic replacement components
Main markets: Europe / South America / Middle East / Southeast Asia / Africa
MOQ: 1 PC
Sample orders: 1 PC
Normal lead time: 1-2 days
OEM support: Drawing check, code matching, dimensional verification and batch production.
Certifications
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FAQ Display Content
Q: Does PVM098 deliver 98.3 litres a minute?
A: That number is cubic centimetres per revolution, not litres per minute. At full stroke the pump displaces 98.3 cm³/rev (6.00 in³/rev). Speed and swashplate angle decide the flow.
Q: Which pressure number belongs on the setting sheet?
A: Use 315 bar as the nominal operating reference. The 350 bar line is a peak lasting less than 0.5 second. It is not a continuous duty figure and should not be copied as the compensator setting.
Q: What flow should I expect from an E pump at 1800 rpm?
A: The arithmetic says 176.9 L/min. The published effective result is about 170 L/min at 315 bar. When checking a machine, note the oil temperature and pressure next to the measured flow.
Q: Is 2200 rpm allowed on the standard version?
A: No. That speed belongs to the M group and assumes 1 bar absolute inlet pressure. At 0.85 bar absolute, even the M table comes back to 1800 rpm.
Q: Are PVM098 and PVH098 interchangeable?
A: No. The 98.3 cc displacement is shared; the family is not. PVM098 is the 315 bar industrial range. The standard PVH098 data on our PVH page uses 250 bar, and the controls and codes differ too.
Q: Can I reverse rotation by changing the hoses?
A: No. R and L identify internal timing when viewed from the shaft end. Follow the old code. Hose changes do not turn one rotation into the other.
Q: Why is the M build so sensitive to its inlet?
A: At 2200 rpm, each bore has very little time to fill. A narrow pipe, high suction lift, cold oil or a loaded filter takes away that filling pressure. Whine is a warning, not a normal sound for the high-speed version.
Q: Will the displacement stop regulate actuator speed?
A: It only caps maximum yoke travel. That trims the highest geometric delivery; it does not measure cylinder speed or correct for a changing load.
Q: May I attach another pump to the back?
A: Only on the appropriate thru-drive build. Match the rear flange, spline and coupling, then check the torque used by both units. Length, support, port clearance and alignment matter after the second pump is installed.
Q: Is this a genuine Danfoss or Vickers product?
A: No. SheungChak makes the compatible replacement offered on this page. Danfoss and Vickers are reference names used to identify the family being matched.
Q: What turns an enquiry into a firm quotation?
A: The complete code and old part number come first. Add separate photographs of the shaft, flange, main ports, control, drain and back. For an M pump, include actual rpm and inlet pressure measured at the port.
Vickers, Eaton and Danfoss are trademarks of their respective owners. The names are used only for product identification and replacement reference. SheungChak is not affiliated with or endorsed by those trademark owners unless a quotation states otherwise.
[Send your PVM098 nameplate for a replacement check (/contact-us)]
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