PVM Open Loop Pumps

Table of Contents Performance Assurance Features and Benefits Specifications Dimensions and Weights Pressure Pick-ups Pressure Compensator Standard Load Sense w/Pressure Compensator Override Proportional Electrohydraulic Pressure Compensator Inverse Proportional Electrohydraulic Pressure Compensator Adjustable Load Sense w/Pressure Compensator Override Adjustable Load Sense w/Pressure Bleed-off & Pressure Compensator Override Soft Start Pressure Compensator Remote Pressure Compensator Performance Curves Efficiency, Delivery, Horsepower, Etc. Inlet Suction/Supercharge Multiple Pumps Pump Combinations...

PERFORMANCE ASSURANCE – Standard With Every Oilgear COMPONENT As a customer, you also benefit from access to commitment to stay with your installation until You’ll find factory trained and field-experienced with our Performance Assurance — a corporate Oilgear’s impressive technical support network. our equipment performs as specified. application engineers on staff at every Oilgear Hydraulic equipment and systems have been who can access the records and knowledge learned Oilgear’s primary business since 1921. For decades, we have developed hydraulic techniques to meet the unique needs and unusual...

PVM Open Loop Pumps Multiple controls available n A fast shift valve assists pump in coming back on stroke n All units are shipped with “meter-out” pressure compensated, load sensing control n Delivers high performance in a compact package Cylinder mounted in polymerous hydrodynamic journal bearings n Allows operation with low viscosity or other special fluids n Provides infinite bearing life n Enables compact design Rugged cylinder design n Hardened nodular iron construction for improved performance and contamination resistance Hardened cylinder surfaces n Greater resistance to contamination...

Plus the following not shown in the cross section photo (16) Can be easily mounted in any position n Easy to install n Dual case drain available for mounting flexibility (14) Multiple capacities in each compact frame size n Permits selection of volume capacity that most closely match your needs while providing maximum control range n Unitized one-piece nodular iron housing reduces number of potential leak paths (17) Built in purge port n Aids in purging trapped air from pump during start-up (15) Totally enclosed n Impervious to high pressure washdown n Can be operated in hazardous environments...

Nominal Performance Data with 150-300SSU viscosity fluids THEORETICAL RATED FRAME UNIT MAXIMUM CONTINUOUS MAXIMUM SIZE SIZE DISPLACEMENT PRESSURE PRESSURE FLOW RATE at 1800 rpm, POWER rated continuous INPUT pres. & 14,7 at rated psia (1.0 bar) MINIMUM INLET PRESSURE MAXIMUM cont. pres. inlet condition psia (bar) SPEED & 1800 rpm

SINGLE PUMP Nominal Dimensions FRAME SIZE UNIT SIZE FACE MOUNT DUAL PUMP FRAME SIZE PRESSURE PICK-UP POINTS FOR INSTRUMENTATION HP Port #4 Straight Thread SAE Port Internal Control Back Pressure (typical 0 to 150 psi) Construction Plugs at these locations. These should not be used as pressure pick-ups. Standard Load Sense Port #4 Straight Thread SAE Port Pump Outlet Pressure for “P-1NN”, “P-1NN/J” and “P-1NN/B” type controls. Load Sense Pressure for “P-1NN/F” type control. Remote PC Pressure Port #4 Straight Thread SAE Port Pump Control Pressure Pump Suction Port Purge Port #4 Straight Thread...

Pump Controls* PUMP CONTROLS* Any, single or multiple, combination of remote or load sense controls can be combined with the built-in pressure compensator control if desired. Pressure Compensator Pump Controls* Ensures maximum pump flow until unit reaches preset control pressure setting and then regulates output flow to match the requirements of the system while maintaining preset output pressure. Pressure can be adjusted from 350 psi (24,1 bar) working pressure up to the rated pressure of the pump. Proportional Electronic Pressure Compensator Pressure compensator setting increases proportionally...

Adjustable Load Sense w/Pressure Compensator Override Adjustable load sense w/pressure compensator “P-1NN/J.” A constant output flow is maintained for a given (customer supplied) flow control valve setting regardless of changes in drive speed and/or working pressure. The load sense differential is adjustable from 180 to 700 psi (12,4 to 48,3 bar). Adjustable Load Sense w/Pressure “P-1NN/B” Bleed-off & Pressure Compensator Override Same as “P-1NN/J” except with an internal orifice to vent load sense pressure to drain when the load sense is not active or during shutdown. The load sense differential...

■ Remote Controls for Pressure A customer-supplied remote control valve can be easily added to any of the "PVM" pumps allowing pressure adjustment control to be convenient to the operator while the pump may be located convenient to the operated device. MULTIPLE PRESSURE COMPENSATOR CONTROL PRESSURE COMPENSATOR UNLOADING CONTROL PROPORTIONAL PRESSURE COMPENSATOR CONTROL FULL STROKE PUMP CONTROL PISTON Note: RP (Remote Pressure) lines of multiple pumps cannot be tied together for unloading or controlling with a common remote pressure control valve. A dedicated valve is required For remote pressure...

PERFORMANCE Performance curves are based on a viscosity of 160 SSU. Volumetric Efficiency Overall Efficiency Performance Curves Pressure (psig)

Performance curves are based on a viscosity of 160 SSU. Volumetric Efficiency Volumetric Efficiency Pressure (psig) Effici ency (%) Overall Efficiency Overall Efficiency Pressure (psig) Pressure (psig) Pressure (psig) Performance Curves Overall Efficiency verall Efficiencyy Overall Efficiency

Performance curves are based on a viscosity of 160 SSU. Overall Efficiency Performance Curves

SOUND Sound curves are based on a viscosity of 500 SSU. Sound Curves Pressure (psig) * Be sure system and pumps are protected against overloads with a high-pressure relief valve.