Danfoss 106cc PVM Variable Displacement Piston Pump User Guide

The Vickers by Danfoss PVM Variable Displacement Piston Pump is designed to handle pressures up to 315 bar, featuring a strong rotating group for durability and reduced maintenance costs.

Key Features

Saddle-type yoke with steel-backed polymer bearings

Single control piston for reduced pump size
Adjustable maximum stop for flow tuning

Gauge ports for monitoring inlet and outlet conditions
Mounting flange offered in SAE configurations

Side-ported models available for ease of plumbing
Compatible with various types of hydraulic fluids

Installation

Ensure proper alignment and secure mounting of the pump using the provided SAE configurations for flange and port connections.
Consider machine space needs when selecting side-ported models.

Fluid Compatibility

The pump can operate with a variety of hydraulic fluids including high-water-content, phosphate ester, petroleum-based, and synthetic fluids. Ensure compatibility with the specific fluid used in your industrial system.

FAQ

Q: What is the maximum pressure range of the Vickers by Danfoss PVM Variable Displacement Piston Pump?

A: The pump can handle pressures up to 315 bar.

Q: Are there specific requirements for the hydraulic fluid used with this pump?

A: The pump is capable of operating with various types of hydraulic fluids, including high-water-content, phosphate ester, petroleum-based, and synthetic fluids. Ensure compatibility with the fluid being used in your system.

Q: How can I monitor the inlet and outlet conditions of the pump?

A: Gauge ports are provided on the pump for monitoring the inlet and outlet conditions.

Introduction

Vickers by Danfoss M Series pumps are open-circuit, axial piston designs. A variety of control options allows the pumps to perform most efficiently in a specific application. EfÏciency of the pump controls allows down-sizing of system cooling needs, saving upfront costs in the machine. Alternatively, the cooling capacity could be kept the same and the flow capability of the system increased, thus improving performance and customer satisfaction.
The M Series also contains a strong proven rotating group allowing the pumps to handle pressures up to 315 bar (4568 psi) continuously with less maintenance cost. High-load carrying capacity bearings and a stiff drive shaft help provide a very long life at rated industrial conditions, reducing operating costs and extending operating life.

M Series pumps feature a saddle-type yoke with steel-backed polymer bearings. The stiff yoke reduces deflection and allows even loading of bearings, improving life. A single control piston reduces loading on the yoke, resulting in reduced pump size which allows installation in tighter locations.
M Series pumps operate at a level of quietness that exceeds the requirements of today’s demanding work conditions. The pumps feature a unique three-piece envelope (flange, housing, and valve block) specifically created for low fluid-borne and structure-borne noise levels. Another pump feature – a bimetal timing plate – improves pump filling characteristics which, in turn, reduces fluid-borne noise and extends pump life.

M Series pumps reduce, or in some cases remove, the need for damping barriers between the noise source and the operator. This saves money on the installed cost of the system while improving customer comfort.
An adjustable maximum stop provides a means of tuning flow to your system, while gauge ports allow monitoring of inlet and outlet conditions. These standard features reduce system complexity and cost.
The mounting flange is offered in SAE con fig curations, and ports are offered in SAE flange versions.
Side-ported models are available to facilitate plumbing and help fit the pump to your machine space needs. Multiple drain ports allow many mounting orientations, reducing installed costs.
M Series pumps are capable of operating with many types of hydraulic fluids used in industrial systems. High-water-content and phosphate ester fluids can be accommodated, in addition to the typical petroleum-based and synthetic fluids.

Typical Applications

Mining machinery
Injection molding machines
Metal forming machines
Oil and Gas Equipment
Conveyor lines
Primary metals
Metal cutting equipment

Features and Benefits

Teardrop-shaped housing contains fluid-borne sound and reduces operator fatigue
Standard adjustable maximum volume screw and gage ports give the ultimate flexibility to the engineer or service technician
High overall efficiency reduces operating costs

Robust shaft bearings extend operating life and lower maintenance costs
Multiple port types and locations aid in the flexibility of machine design
Very low-pressure ripple reduces shock in the system resulting in less leakage

Model Code Selection

Specifications and Performance

Quiet version, optimized for 1000-1800 rpm (E)

Displacement, Pressure, and Flow Ratings At 50°C (120°F), SAE 10W oil, 1 bar absolute (0 psig) inlet

Less than 0.5 seconds.

Speed, Input Power, and Torque Ratings At 50°C (120°F), SAE 10W oil, 1 bar absolute (0 psig) inlet

Standard Response Times

High-speed version (M)

Displacement, Pressure, and Flow Ratings At 93°C (200°F), SAE 10W oil, 1 bar absolute (0 psig) inlet

Speed, Input Power, and Torque Ratings At 93°C (200°F), SAE 10W oil, 1 bar absolute (0 psig) inlet

Approximate Model Series	Operating Speed and Pressure r/min 1 bar Inlet 0,85 bar Inlet Flange Ports Flange Ports	Max. Input Power at Max. Speed and 280 bar (4000 psi) kW (hp)	Max. Torque at 280 bar (4000 psi) Nm (lb-ft)	Weight (dry) kg (lbs)
PVM098	2200 r/min 105 (141) 457 (337)			55 (121)
	1800 r/min 86 (115) 457 (337)			55 (121)
PVM106	2200 r/min 87 (117) 377 (278)			55 (121)
	1800 r/min 70 (94) 377 (278)			55 (121)

Standard Response Times

Variable Speed Drive

Variable Speed Performance- System Pressure vs Speed

Valve plate type
Less than 0.5 seconds.
Note – For Variable Speed Drive applications, Modelcode Position 14 should be set at 0, and positions 15, 16, and 17 should be set to 000 to configure the pump to the “Fixed Displacement” type.

Moment of Inertia (single pump rotating group)

Model	Moment of Inertia
	N-m (sec2)	lbf-in (sec2)
PVM098	0.0132	0.1165
PVM106	0.0123	0.1086

PVM System Pressure vs. Shaft Speed

Test condition: Mineral oil SAE 10W, oil temperature 49º C (120º F), 1 bar absolute inlet pressure.

Control Options

Pressure Compensator Control – Code A

The pump will provide a continuously modulated flow to meet changing load demands at a pre-adjusted compensator pressure. At pressures below the compensator setting, the pump will operate at maximum displacement.
Warning: The pressure compensator may be adjusted beyond the rated pressure of the pump.

When adjusting the pressure limiter, install a 0-350 bar (0-5000 psi) gage in the outlet gage port and limit the pressure setting to the continuous rated pressure for the pump displacement.

Pressure Cut-off Characteristics of Pressure Compensator Control

Industrial: at 50°C (120°F), Static conditions

Mobile: 93°C (200 °F), Static conditions

Pressure Cut-off Characteristics of Pressure Compensator Control @ 50°C (120°F), Static Conditions

Model Series	Max. Speed r/min	“Q” Outlet Flow l/min (USgpm)	“P” Outlet Pressure bar (psi)	A bar (psi)	B L/min (USgpm)
PVM098	1800	179 (47)	315 (4568)	1,5 (22)	25 (6.6)
PVM106	1800	195 (51.5)	230 (3300)	1,5 (22)	20 (5.3)

Pressure Cut-off Characteristics of Pressure Compensator Control @ 93°C (200°F), Static Conditions

Model Series	Rated Speed r/min	“Q” Outlet Flow l/min (USgpm)	“P” Outlet Pressure bar (psi)	A bar (psi)	B L/min (USgpm)
PVM098	2200	217 (57)	315 (4568)	1,5 (20)	32 (8.4)
PVM106	2200	234 (62)	230 (3300)	1,5 (22)	24 (6.33)

Load Sensing and Pressure Compensator Control – Code B or C

The pump will provide power matching of pump output to system load demand, maximizing efficiency and improving load metering characteristics of any directional control valve installed between the pump and the load.
Load sensing ensures that the pump always provides only the amount of flow needed by the load. At the same time, the pump operating pressure adjusts to the actual load pressure plus a pressure differential required for the control action.

When the system is not demanding power, the load sense control will operate in an energy-saving stand-by mode.
Typically, the differential pressure is that between the pressure inlet and service port of a proportionally controlled directional valve, or a load-sensing directional control valve.
If the load pressure exceeds the system pressure setting, the pressure compensator de-strokes the pump. The load sensing line must be as short as possible and can also be used for remote control or unloading of the pump pressure.

For remote control purposes, it is recommended that you contact your Danfoss representative for the correct configuration of the control.
Warning: The pressure compensator may be adjusted beyond the rated pressure of the pump.
When adjusting the pressure limiter, install a 0-350 bar (0-5000 psi) gage in the outlet gage port and limit the pressure setting to the continuous rated pressure for the pump displacement.

Industrial Control Compensator – Code E and F

This pump is intended for use when multiple, remote, or electronically controlled compensating settings, with or without load sensing, are desired.
Pressure compensation is obtained when an internal plug is removed, the load-sense signal port is kept plugged, and internal pilot pressure is applied to the spring chamber of the control spool.

For pressure compensation with load sensing, the internal plug stays, the load-sense signal port is unplugged, and pilot pressure is externally applied.
An external relief valve (not supplied) controls spring chamber pressure. The externally adjustable spring determines the differential pressure setting of the control.
Outlet pressure is limited to the valve of the spring chamber (pressure port) pressure, plus control differential pressure.

Spring chamber (pilot) pressure is separated from outlet pressure by an internal orifice. Outlet pressure shifts the spool when the pressure drop across the orifice reaches the differential pressure setting and the pump de-strokes.
The relief valve can be mounted to an NFPA-D03/ISO 4401-03 pad on the pump control, or remotely located via tapping and blanking plates installed on the pad.
The standard factory-set differential pressure setting of the pump control is 20 bar (290 psi) and is not specified in the pump model number. Any other ordered differential pressure, within the control’s adjustable pressure range of 17-35 bar (247-508 psi), will be specified in the model number.

With Pressure & Flow Compensator (E)

Pressure Compensating without Load Sensing (F)

Power Control – Code L

The Power control limits the maximum torque output by the piston pump by reducing the displacement as pressure increases hence limiting the power rating at a given speed.
As pressure increases the pump displacement is reduced such that the set torque value is not exceeded.
The torque can be set between 20-90% of rated torque for a given displacement at 1500 rpm.

Warning: The pressure compensator may be adjusted beyond the rated pressure of the pump.
When adjusting the pressure limiter, install a 0-350 bar (0-5000 psi) gage in the outlet gage port and limit the pressure setting to the continuous rated pressure for the pump displacement shown.
Note: If the application runs at a different speed, for example, 1800 rpm, and the power should be limited to 50 kW then use this formula: (50 kW)/(1800 rpm)×1500 rpm=41.66 kW

Then round off to the next available modelcode i.e., 045.
Characteristics of Code L Power Control at 50°C (120°F), static conditions.

Torque setting range by displacement
Displacement (cc) Rated Torque		Min torque setting	Max torque setting
lb-in (N-m)		lb-in (N-m), 20% of rated torque*	lb-in (N-m), 90% of rated torque
098	4346 (491)	869 (98.2)	3912 (442)
106	3434 (388)	690 (78)	3089 (349)

For Minimum torque setting (20%) the pump may not deliver the flow at higher pressure. Please contact Danfoss Engineering for flow generated at max pressure

Operation and installation – Power Control / Torque Limiter

Description

PVM series piston pump with Power Control consists of, A)pump with modified pressure and flow compensator and B) Power Control subassembly installed.

Pump with Power limiter control

Power Control Operation

The Power Control Subassembly consists of a poppet-type valve guided by a specially designed control piston with a unique profile. The pressure setting of the poppet valve, being guided by the profile on the control piston, is dependent on the actual displacement of the pump. For lower displacement the pressure setting is high. As displacement is increased, the pressure setting is reduced according to the profile on the control piston.

The poppet type valve gets a pressure signal either from the modified load sense port (for Pressure Flow Compensated) or the pump outlet pressure (for Pressure Compensated).
The power control subassembly regulates this pressure based on the displacement.
This regulated pressure is internally fed back to the control piston chamber, which compensates by adjusting the pump displacement appropriately. This results in achieving the desired control of constant input power.

Power Control Adjustment

To adjust the control power setting, power measurement devices are required. For Input power, motor torque and speed need to be measured, typically achieved by use of a clamp-style ammeter.
For output power, devices for pump pressure and flow measurements are required, such as pressure gages or transducers, and flow meters.

The pump comes with a factory power setting. The setting can be changed by loosening the lock nut on top of the control subassembly and turning the adjustment screw with the help of a hex key.
Rotating the adjustment screw clockwise increases the power setting while rotating it anti-clockwise reduces it. After adjustment as required ensure that the locknut is tightened properly.

Performance

Quiet version, optimized for 1000-1800 rpm (E) PVM098

Higher speed version (M) PVM098

Quiet version, optimized for 1000-1800 rpm (E) PVM106

Higher speed version (M) PVM106

Side-ported Models

Without through-drive capability PVM098

Through-drive Models

PVM098 Generic through-drive assembly

MODEL CODE POSITION 23	Item No. 69 (Adapter) (QTY 1)	Item No.70 (Screw) (QTY 4)	Item No.71 (O-ring) (QTY 1)	Item No.72 (O-ring) (QTY 1)	Item No.73 (Coupler) (QTY 1)
A	○	○	○	●	●
B	○	○	○	●	●
C	●	●	●	●	●
D	●	●	●	●	●
E	●	●	●	●	●
F	●	●	●	●	●

○= Not required for through-drive
●= Required for through-drive

Model Code Position 23
	Description
A	SAE “A,” 9T, 16/32 DP, 30° pressure angle, involute spline
B	SAE “A,” 11T, 16/32 DP, 30° pressure angle, involute spline
C	SAE “B,” 13T, 16/32 DP, 30° pressure angle, involute spline
D	SAE “B-B,” 15T, 16/32 DP, 30° pressure angle, involute spline
E	SAE “C,” 14T, 12/24 DP, 30° pressure angle, involute spline
F	SAE “C-C,” 17T, 12/24 DP, 30° pressure angle, involute spline

SAE “A” Adaptor Flange

Features are in metric but use inch threads Dimensions are in millimeters (inches)

SAE “B” Adaptor Flange

Features are in metric but use inch threads Dimensions are in millimeters (inches)

SAE “C” Adaptor Flange

Features are in metric but use inch threads Dimensions are in millimeters (inches)

Mounting Flange Options

G – SAE J744-127-4 C 4-BOLT

Shaft Options

Input Shaft

Selection Data

SAE Splined Shafts
Model Series	Shaft Designation	Shaft Code	Max. Input Torque† Nm (lb. in.)	Max. Thru-drive Output Torque‡ Nm (lb. in.)
	SAE J744-32-4 (SAE “C,” 14T)	11	640 (5660)	640 (5660)
PVM098/106	SAE J744-38-4 (SAE “C-C,” 17T)	12	1215 (10,750)	640 (5660)
SAE Keyed Shafts
Model Series	Shaft Designation	Shaft Code	Max. Input Torque† Nm (lb. in.)	Max. Thru-drive Output Torque‡ Nm (lb. in.)
	SAE J744-32-1 (SAE “C”)	09	450 (3980)	450 (3980)*
PVM098/106	SAE J744-38-1 (SAE “C-C”)	10	765 (6770)	640 (5660)

Maximum total torque of the thru-drive pump and the thru-driven pump(s).

Maximum torque that can be applied to the thru-driven pump(s).
This value is limited by the maximum input torque.

Port Options

Operating Requirements

Bearing life at 50o C (120o F), SAE 10W oil, 1 bar abs (0 psig) inlet pressure

Fluid Cleanliness

The M Series pumps are rated in anti-wear petroleum fluids with a contamination level of 20/18/13 (Danfoss) or ISO 18/13.
Operation in fluids with levels more contaminated than this is not recommended. Fluids other than petroleum, severe service cycles, or temperature extremes are cause for adjustment of these codes.
Please contact your Danfoss Representative for specific duty cycle recommendations.

Vickers by Danfoss M Series pumps, as with any variable displacement piston pumps, will operate with apparent satisfaction in fluids up to the rating specified here.
Experience has shown, however, that pump and hydraulic system life is not optimized with high fluid contamination levels (high ISO cleanliness codes).
Proper fluid condition is essential for the long and satisfactory life of hydraulic components and systems.

The hydraulic fluid must have the correct balance of cleanliness, materials, and additives for protection against wear of components, elevated viscosity, and inclusion of air.
Essential information on the correct methods for treating hydraulic fluid is included in Danfoss publication 561 – “Danfoss Guide to Systemic Contamination Control” – Available from your local Danfoss distributor. In this publication, filtration and cleanliness levels for extending the life of axial piston pumps and other system components are listed. Included is an excellent discussion of the selection of products needed to control fluid conditions.
Example: PVM131 operating at 1200 rpm, at 230 bar, and 200 lpm

From the chart, find that the rated life is 14000 L10 hours, the rated pressure is 315 bar, the rated flow is 215 lpm and the rated speed is 1800 rpm. Using the formula provided, the new bearing life expectation is calculated as follows:
Further modifications to bearing life are possible, including de-rating due to special fluids.
Generally, standard water-glycol fluids reduce rated bearing life to 20% And case flushing is required. Please contact Danfoss Engineering for assistance.

Moment of Inertia (single pump rotating group)

Model	Moment of Inertia
	N-m (sec2)	lbf-in (sec2)
PVM098	0.0132	0.1165
PVM106	0.0123	0.1086

Alternate fluids guide

Installation and Start-up

Warning: Care should be taken so that mechanical and hydraulic resonances are avoided in the application of the pump. Such resonances can seriously compromise the life and/or safe operation of the pump.

Drive Data

Mounting attitude can be either horizontal or vertical, using the appropriate case drain ports to ensure that the case remains full of fluid at all times. Consult your local Danfoss Representative if a different arrangement is required.
In those cases where geometric tolerances of mounting are critical, or where specific tolerance ranges are required and not specified, consult Danfoss Engineering for specific limits.
The direction of shaft rotation, viewed from the prime mover end, must be as indicated in the model designation on the pump – either right hand (clockwise) or left hand (counterclockwise).
Direct coaxial drive through a flexible coupling is recommended. If drives imposing radial shaft loads are considered, please consult your Danfoss Representative.

Start-up Procedure

Make sure the reservoir and circuit are clean and free of dirt/debris before filling with hydraulic fluid.
Fill the reservoir with filtered oil and fill it to a level sufÏcient enough to prevent vortexing at the suction connection to the pump inlet. It is good practice to clean the system by flushing and filtering, using an external slave pump.
Caution: Before the pump is started, fill the case through the uppermost drain port with hydraulic fluid of the type to be used. The case drain line must be connected directly to the reservoir and must terminate below the oil level.
Once the pump is started, it should prime within a few seconds. If the pump does not prime, check to make sure that there are no restrictions between the reservoir and the inlet to the pump, that the pump is being rotated in the proper direction, and that there are no air leaks in the inlet line and connections. Also, check to make sure that trapped air can escape at the pump outlet.
After the pump is primed, tighten the loose outlet connections, then operate for five to ten minutes (unloaded) to remove all trapped air from the circuit.
If the reservoir has a sight gauge, make sure the fluid is clear – not milky.
Danfoss Power Solutions, Nordborgvej 81, 6430 Nordborg, Denmark, Tel. +45 74 88 22 22, Fax +45 74 65 25 80
danfoss.com/VickersIndustrial, E-mail: info@danfoss.com
Support E-mail: industrialpumpsmotorsupport@danfoss.com
Danfoss can accept no responsibility for possible errors in catalogs, brochures, and other printed material. Danfoss reserves the right to alter its products without notice. This also applies to products already on order provided that such alterations can be made without subsequential changes being necessary in specifications already agreed. All trademarks in this material are the property of the respective companies. Danfoss and the Danfoss logotype are trademarks of Danfoss A/S. All rights reserved.
Printed in USA
Document No. V-PUPI-TM007-E3
DAM No: BC488979909885en-000102
June 2024

Documents / Resources

Danfoss 106cc PVM Variable Displacement Piston Pump [pdf] User Guide
PVM Piston Pump Code B 98, 106cc, 106cc PVM Variable Displacement Piston Pump, 106cc, PVM Variable Displacement Piston Pump, Displacement Piston Pump, Piston Pump

References

User Manual

Danfoss 106cc PVM Variable Displacement Piston Pump

Product Usage Instructions

FAQ

Introduction

Model Code Selection

Specifications and Performance

Control Options

Performance

Side-ported Models

Through-drive Models

Mounting Flange Options

Shaft Options

Input Shaft

Operating Requirements

Alternate fluids guide

Installation and Start-up

Documents / Resources

References

Leave a comment

Cancel reply