PVV Open Loop Pumps

Table of Contents Performance Assurance Features and Benefits Specifications Controls Single Pressure Compensator Single Pressure Compensator w/Load Sense Single Pressure Compensator w/Horsepower Limit Single Pressure Compensator w/Horsepower Limit & Load Sense Single Soft Start Pressure Compensator Single Soft Start w/Load Sense Single Soft Start w/Horsepower Limit Single Soft Start w/Horsepower Limit & Load Sense Dual Pressure Compensator Triple Pressure Compensator Dual Soft Start Triple Soft Start Electronic Proportional Pressure Compensator Remote Pressure Compensator w/Horsepower Limiter...

PERFORMANCE ASSURANCE – STANDARD WITH EVERY OILGEAR PUMP As a customer, you also benefit from access to with our Performance Assurance — a corporate Oilgear’s impressive technical support network. commitment to stay with your installation until You’ll find factory trained and field-experienced our equipment performs as specified. application engineers on staff at every Oilgear facility. They are backed by headquarters staff Hydraulic equipment and systems have been who can access the records and knowledge learned Oilgear’s primary business since 1921. For from decades of solving the most difficult...

PVV Open Loop Pumps Compact, computer optimized, high horsepower pumps with Oilgear’s time proven rotating group. n Up to 587 horsepower (438 kw) in a small package enables compact, light weight installation package. n Proven designed rotating group with 25 years of heavy duty applications. n Engineered with proven materials and finite element analysis. Swashblock and integral saddle with special polymerous bearings. n Allows running with low viscosity or other special fluids. n Permits consistent control reaction. n Eliminates troublesome yoke bearing. n Provides long life. Keyed or splined...

Cylinder mounted polymerous journal bearings. n Enables operation with low viscosity or other special fluids. n Provides infinite bearing life. n Enables compact design. Thru-shaft availability. n Thru-shaft torque capability. n Enables multiple pump installation from a single shaft. Rugged cylinder design. n Hardened nodular iron construction for improved performance and contamination resistance. Valve plate selection. n Rear or top and bottom port connections available. Quiet port plate design. n Minimizes noise at typical electric motor speeds.

SPECIFICATIONS 80-550 SSU VISCOSITY FLUID UNIT SIZE THEORETICAL RATED MAXIMUM CONTINUOUS DISPLACEMENT PRESSURE * Consult Oilgear Technical Sales Department. NOTE: PVV-440 is supercharged only (2-8 bar). POWER INPUT AT CONTINUOUS RATED PRESSURE 1000 rpm hp kw 185 138 203 152 489 365 460 343 * Consult Oilgear Technical Sales Department. DIMENSIONS AND WEIGHTS W/O CONTROLS

Pump Controls* PRESSURE* Single Pressure Compensator Ensures maximum pump flow until unit reaches preset control setting then regulates output flow to match the requirements of the system while maintaining preset output pressure. Maintains a constant flow rate for a given flow control valve setting regardless of changes in drive speed and/or working pressure. flow control valve Pump Controls* Single Pressure Compensator “P-1NN/F” w/Load Sense * Be sure system and pumps are protected against over loads with a high pressure relief valve. If control shifts faster than 150 m/seconds, cavitation can...

PRESSURE* Single Pressure Compensator “P-1NN/H” w/Horsepower Limit To limit horsepower consumption, pump delivery is automatically reduced as unit pressure rises. Pump Controls* Refer to note in “How to Order” prior to specifying input horsepower. Single Pressure Compensator “P-1NN/G” w/Horsepower Limit & Load Sense Load sensing control matches pump flow and pressure to load demand until (limited) horsepower setting is reached. Control then automatically reduces pump delivery as system pressure rises to limit horsepower consumption. flow control valve Refer to note in “How to Order” prior to...

Single Soft Start Pressure Compensator# Pump starts “softly” by going quickly at low pressure to a reduced flow setting, thereby reducing start-up torque requirements. After start-up, the pressure compensator function takes over. Pump starts “softly” by going quickly at low pressure to a reduced flow setting, thereby reducing start-up torque requirements, before maintaining a constant flow rate for a given flow control valve setting regardless of changes in drive speed and/or working pressure. Pump Controls* Single Soft Start w/Load Sense# * Be sure system and pumps are protected against over...

PRESSURE* “P-C--/H” Single Soft Start w/Horsepower Limit# Pump Controls* Pump starts “softly” by going quickly at low pressure to a reduced flow setting, thereby reducing start-up torque requirements, before automatically reducing pump delivery as unit pressure rises and limiting horsepower consumption. Single Soft Start w/Horsepower Limit & Load Sense# Pump starts “softly” by going quickly at low pressure to a reduced flow setting, thereby reducing start-up torque requirements before load sensing control matches flow and pressure to load demand until (limit) horsepower setting is reached. Control...

Dual Pressure Compensator Similar to “P-1NN” but provides two independently adjustable pressure compensated deliveries as selected by an integral solenoid. Pump Controls* Triple Pressure Compensator Similar to “P-1NN” but, provides three independently adjustable pressure compensated deliveries as selected by integral solenoids. * Be sure system and pumps are protected against over loads with a high pressure relief valve. # Not to be used for decompressing system. ** PVV-440 only available with F, VR, RU and VM controls.

PRESSURE* Dual Soft Start# Pump Controls* Pump starts “softly” similar to “P-C--” but then provides two independently adjustable pressure compensated deliveries as selected by an integral solenoid. Triple Soft Start# Similar to “P-C--” but, after the soft start the unit provides three independently adjustable pressure compensated deliveries as selected by an integral solenoid. * Be sure system and pumps are protected against over loads with a high pressure relief valve. # Not to be used for decompressing system. ** PVV-440 only available with F, VR, RU and VM controls.