POLYTEC

Pompe Denison

Pompe assiali a pistoni

• Economiche
• Silenziose.
• A basso consumo.
• Pressione massima di funzionamento intermittente: Da 310 bar eccetto la PV29 (276 bar).
• Conformazione completa.

Pompe assiali a pistoni - Serie World Cup

• Elevata potenza: 204 HP (152 kW) continuous
• Controllo di compensazione: rapida risposta per un eccellente controllo di pressione. Disponibile con lo stop di massimo volume o uno stop aggiustabile con manopola.
• Ventable Compensator - for load sensing or remote control application.
• Various controls available - rotary servo, electrohydraulic stroker, hydraulic stroker, pressure compensator override option, load sensing and torque limiter.
• SAE conformance - SAE-D 4-bolt mounting pad and SAE-D 4-bolt flange connections have full conformance to SAE specifications.
• Barrel bearing to reduces barrel face loads, reduces wear and extends temperature and speed range.
• Elevata velocità: massimo 3000 giri al minuto, 2050 RPM with atmospheric inlet. 2100 RPM maximum for Series 8.
• Elevata pressione 345 bar continuativi, 414 bar intermittenti. 300 bar per la serie 8.
• Rear drive allows auxiliary or boost pump to be driven from rear. SAE-B, BB, C and D drive pads are available. Piggyback feature allows two pumps to be run in tandem.
• Field proven rotating group - the main rotating group is the same as in the Goldcup hydrostatic transmissions that have been in service for than 19 years.

Trasmissioni idrostatiche

• Elevata potenza Da 169kW a 519kW continuativi.
• Pump displacement control is rotary servo with pressure compensator overrides. Optional additional controls available as standard include spring-positioning, automatic brake control, electro-hydraulic, torque limiter override, servovalve with feedback and others.
• Compensator override for the pump is effective in both flow directions, may be vented or remotely pressure controlled together or individually. It typically eliminates the need completely for system reliefs because it has full-flow relieving capability. Compensator is fast, (.050 seconds on the series 6, 7, & 8), (.070 seconds on the series 11&14) and (.100 seconds on the series 24&30) and extremely stable.
• SAE conformance The mounting pads and shafts are all within full conformance of SAE standards. The two shaft options; SAE keyed and SAE splined.
• Shaft-through-rocker design allows convenient mounting and porting.
• Rocker displacement control shrinks package size, eliminates high force linkages and reduces noises.
• Barrel bearing reduces barrel face loads, reduces wear and extends temperature and speed range.
• Low speed operation of pump without cavitation-because drain oil makes up replenishment flow when needed. NOTE: Optional case pressure check valve must be used for low speed operations.
• Military Specifications These products are qualified to meet Military specifications MIL-P-17869A and MIL-S-901C Grade A (P8 , P30 pending).
• Fixed displacement pumps and motors, also available from 4.05 in3/rev. (66.38 cm3/rev.) to 7.25 in3/rev. (118.8 cm3/rev).

Pompe assiali a pistoni - P16

• Alta pressione 500 bar intermittente (Premier), e 420 bar continuativi.
• High Speed The porting design and number of pistons allow the Premier Series pump to fill at higher speed- up to 1850 rpm at atmospheric inlet pressure and 2500 rpm maximum with boost.
• Low Noise Level The heavily dampened rocker cam and 7 piston design produces a lower fundamental noise frequency and gives the Premier Series a lower decibel rating than competitive units.
• Full Power Through Drive The through shaft design allow two pumps to be run in tandem at full rated pressure and flow. SAE-A, B, BB, C, CC, D, E and ISO 100, 125, 160, 200 and 250 rear mounting and full torque capabilities on rear pump up to and including another unit of the same size operating at 6000psi (420 bar).
• Increased B10 Life The heavy shaft bearing allows side loading. Higher B10 life with all low viscosity fluids.Compensator Control A compensator control with maximum volume stop is standard. The two stage, pilot operated compensator provides sharp pressure cutoff at compensator setting, typically regulating pressure within 50 psi (3.5 bar). The compensator has a vent port for unloading when starting, stopping, multiple operating pressures and for load sensing.
• Optional controls Optional primary controls include: torque limiter, rotary servo, hydraulic stroker, electric stroker and load sensing. Primary control option: handwheel max. volume stop optional on pressure compensator and torque limiter controls. Adjustable maximum volume stop is on all controls.
• Easy Maintenance With a minimum number of parts the Premier Series is easy to repair in the field.
• Available in both SAE and ISO configurations.

TB Vane Pump

• 7 different flow displacements.
• 2 standard shafts.
• 2 different port connections.
• Bi-directional rotation can be achieved by changing cartridge position.

• Alta efficienza volumetrica (94%).
• Basso livello di rumore [64 dB (A) 1500 RPM].
• High self-priming speed (3200 RPM).
• Long life service.
• Alto rapporto peso/potenza (più di 5.7 Kw/kg).

TMB Hydraulic Pumps/Motors Spring Vane

• Balanced Design - Vanes, cam ring and rotor are carefully pressure balanced to give extended useful life at fullest efficiency.
• Interchangeable Rotating Groups - Cam ring and rotor elements may be changed in minutes to renew the motor or to change its displacement to suit altered requirements for speed or torque.
• Reversible Rotation - The motors may be reversed repeatedly and rapidly-driving or braking the connected shaft load of controlled torque levels.
• Operation Over Wide Temperature Ranges - The motor may be started and operated efficiently over a range of -3 to + 2000F. with properly selected fluids. Consult specifications for recommended viscosity for maximum life.
• Dual Purpose Versatility - The TM units may used as motors or as pumps for continuous duty. Operation with atmospheric inlet pressures is recommended to the catalog ratings tabulated.
• Wide Speed Range - Motor will start loads from zero speed and will operate smoothly and at full torque from 60 to maximum rpm.

Large Flow Medium Pressure Low Flow High Pressure Vane Pumps

• High Pressure / High Flow Circuit
  These T67 series vane pumps have been specially designed for high/low circuit. The double and triple pump combination will allow circuit design optimization to build up high pressure 4350 PSI low flow, added to large flow and saving energy.This pump feature will also allow very fast pressuree cycle change with very precise flow repeatability.
  Greater Flow: B: 2 to 10GPM, .35 to 1.94 in3/rev.
  C: 3 to 31GPM, .66 to 6.10 in3/rev.
  D: 14 to 50GPM, 2.90 to 9.64 in3/rev.
  E: 42 to 72GPM, 8.07 to 13.86 in3/rev.
• Higher Pressure: B: 4650 PSI maximum pressure
  C: 4000 PSI maximum pressure
  D: 3500 PSI maximum pressure
  E: 3500 PSI maximum pressure
  Wide Speed range
  Industrial pumps: 600 up to 3600 RPM.
• High Efficiency Better than 94% under high pressure increases productivity and reduces heating and operation costs.
• Low noise level: Increases operator safety and acceptance.
• Mounting Flexibility: Single pumps: 4 positions
  Double pumps: 32 positions
  Triple pumps: 128 positions
  Cartridge design: Provides for drop-in assemblies. It permits easy conversion and renewal of serviceable elements. B Cartridge is bi-rotational and permits easy change of rotation. C,D and E cartridges are uni-rotational.
• Wide range of acceptable viscosity:
  Viscosities from 3900 to 60 SUS, permit colder starts and hotter running. The balanced design compensates for wear and temperature changes. At high viscosity or cold temperature the rotor to side plates gap is well lubricated and improves mechanical efficiency.
• Fire Resistant Fluids and Biodegradable Fluids:
  Including phosphate esters, organic esters, chlorinated hydrocarbons, water glycols, rape-seed may be pumped at higher pressures and with longer service life by these pumps.

Vane Pumps serie T6

• Greater Flow flow for the envelope size is achieved by:
  • Increased displacement cam ring
  • High permissible speeds with atmospheric inlet "C" 31 GPM, "D" 50 GPM, "E" 85 GPM.
• Higher Pressure ratings to 4000 PSI/ reduce size and cost of actuators, valves and lines. At reduced pressures pump life is extended.
• Better Efficiency under load/increases productivity/reduces heating and operating costs.
• Mounting Flexibility Up to 32 positions for double pumps and up to 128 for triple pumps.
• Flexibility reduces mounting costs and improves performance.
• Complete Conformity To SAE-J744c 2-bolt standards and to ISO 3019-1 (T6EDC 3019/2) in various keyed and splined shaft options offered.
• Cartridge Design Provides for drop-in assemblies. They permit easy conversion or renewal of serviceable elements in minuets at minimum expense and risk of contamination. The "C" & "D" cartridge pumps are birotational and indicated by "B" description in cartridge model number. Pump rotation is easy to change by changing position of cam ring on port plate dowel pin hole.
• Wider Range of Acceptable Viscosities Viscosities from 3900 to 60 SUS, permit colder starts and hotter running. The balanced design compensates for wear and temperature changes. At high viscosity or cold temperature the rotor to side plates gap is well lubricated and improve mechanical efficiency.
• Fire Resistant Fluids Including phosphates esters, chlorinated hydrocarbons, water glycol's and invert emulsions may be pumped at higher pressures and with longer service life by these pumps.

Vane Pumps serie T6M

• Greater Flow for the envelope size is achieved by:
  • Increased displacement cam ring
  • High permissible speeds with atmospheric inlet
  "C" 31 GPM, "D" 50 GPM, "E" 85 GPM.
• Higher Pressure ratings to 4000 PSI/ reduce size and cost of actuators, valves and lines. At reduced pressures pump life is extended.
• Better Efficiency under load/increases productivity/reduces heating and operating costs.
• Mounting Flexibility Up to 32 positions for double pumps and up to 128 for triple pumps.
• Flexibility reduces mounting costs and improves performance.
• Complete Conformity To SAE-J744c 2-bolt standards and to ISO 3019-1 (T6EDC 3019/2) in various keyed and splined shaft options offered.
• Cartridge Design Provides for drop-in assemblies. They permit easy conversion or renewal of serviceable elements in minuets at minimum expense and risk of contamination. The "C" & "D" cartridge pumps are birotational and indicated by "B" description in cartridge model number. Pump rotation is easy to change by changing position of cam ring on port plate dowel pin hole.
• Wider Range of Acceptable Viscosities Viscosities from 9240 to 60 SUS, permit colder starts and hotter running. The balanced design compensates for wear and temperature changes. At high viscosity or cold temperature the rotor to side plates gap is well lubricated and improve mechanical efficiency.
• Fire Resistant Fluids Including phosphates esters, chlorinated hydrocarbons, water glycol's and invert emulsions may be pumped at higher pressures and with longer service life by these pumps.
• Lower Noise Levels Increase operator safety and acceptance.
• Application Advantages The high pressure capability up to (4000 PSI), in the small envelope, reduces installation costs and provides extended life at reduced pressure. The high volumetric efficiency typically 94% reduces heat generation, and allows speeds down to (400 RPM) at full pressure.

T6CR Hydraulic Drive Train

• More Applications Drive train vane pumps are available in both industrial and mobile versions. For mobile triple vane pumps consult Denison Hydraulics.
• Greater Flow
  C: 3 to 31 GPM, .66 to 6.10 in3/rev.
  D: 14 to 50 GPM, 2.90 to 9.64 in3/rev.
  E: 45 to 72 GPM, 8.69 to 13.86 in3/rev.
• Higher Pressure
  C: 4000 PSI maximum pressure.
  D: 3500 PSI maximum pressure.
  E: 3500 PSI maximum pressure.
• Wider Speed Range
  Industrial pumps: 600 up to 2800 RPM
  Mobile pumps: 400 up to 2800 RPM
• Better Efficiency Better than 94% for energy saving
• Mounting Flexibility
  Single pumps: 4 positons + 4 on rear drive.
  Triple pumps: 128 positions + 8 on rear drive.
• Rear Drive Mounting pads and coupling fully conform to SAE J744c and ISO 3019-1
  Single pumps
  • SAE A/B/C rear adaptors.
  • SAE A/B/BB/C couplings.
  Triple pumps
  • SAE A adaptor and coupling.
• Cartridge Design Provides for drop-in assembly permitting easy conversion and service. Industrial C & D cartridges are uni-rotational or bi-rotational. Mobile C & D cartridges are only bi-rotational. E cartridges are only uni-rotational.
• Wider range of acceptable viscosity
  Industrial pumps: 58.8 to 3864 SUS
  Mobile pumps: 58.8 to 9240 SUS

T6CH Hybrid Pump - Vane, Piston

• Compactness Overall envelope for up to 9.15in3/rev. pump is under all actual pump sizes of the market.
• High Pressure Pressure rating of both fixed displacement and variable displacement unit is 4000 bar intermittent and 3500 PSI continuous.
• Low Noise Level This combined unit offers the advantage of low noise PV and vane pump which together increase safety and better acceptance of working conditions.
• System Savings because high pressure allows the use of smaller components... you can down size and gain real savings.
• Flexibility: Both units fixed flow and variable flow having separated outlets allow simultaneous machine cycles eg: Mobile machine steering function working at the same time as the hydraulic cylinders.
• Piping cost saving
  • Common suction port.
  • P2 rear port 8 positions
  • Option of variable piston internal drain
  • Compensator venting valve integrated
• Control options on variable displacement
  • Compensator "C"
  • Ventable pressure compensator "F"
  • Load sensing compensator "L"
  • Power limiter "T"
  • Compensator with vent valve only ext. drain "X"
• Cartridge design Vane pump rear cartridge allows great flexibility with 13 different displacements with easy conversion or renewal.
• Wide Range of acceptable fluids: Both units can operate with mineral oil, biodegradable oil and fire resistant fluids.