PVWW Pump
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PVWW Open Loop Pumps For Fluids Containing Water

Performance Assurance page Typical Port Locations 9 Dual Pressure Compensator 10 Soft Start Pressure Compensator 10 Volume Pressure Sensing (Load Sense) 11 Line Mount Remote Pressure Control 13 Performance Data Efficiency, Delivery, Horsepower 14-15 Copyright 2012 ■ The Oilgear Company ■ All Rights Reserved

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 Oilgear’s primary business since 1921. For learned from decades of solving the most...

PVWW Open Loop Pumps Cylinder mounted polymerous journal bearing n Allows operation with special fluids n Provides infinite bearing life n Permits compact design Multiple control types n Field interchangeability without disconnecting from drive or system piping 1 SAE keyed or SAE splined shaft n Heavy duty belt drive shafts Hardened cylinder surface running on hardened valve plate (“hard-on-hard”) n Provides greater resistance to contamination n Provides longer life n Allows operation with special fluids 3 Quiet valve plate design n Minimizes noise at typical electric motor speeds n Rear or...

SPECIFICATIONS SINGLE PUMP Based on 27 – 30 ssu viscosity fluid FLOW RATE at 1800 rpm, POWER rated continuous INPUT THEORETICAL RATED pres. & 14.7 at rated FRAME UNIT MAXIMUM CONTINUOUS PEAK psia (1.0 bar) MINIMUM INLET PRESSURE MAXIMUM cont. pres. SIZE SIZE DISPLACEMENT PRESSURE* PRESSURE* inlet condition psia (bar) SPEED & 1800 rpm in3/rev ml/rev psi bar psi bar gpm l/min 1200rpm 1500rpm 1800rpm rpm hp kw Note: Minimum speed 600 rpm. * Higher pressure available – consult factory. These units are designed to run with fluids in the 27 to 2000 SSU range. For units to be run with conventional...

PUMP COMBINATIONS Two or more Oilgear axial piston variable delivery pumps can be integrally coupled together and driven from a single shaft. Pump deliveries can be combined for large volume circuits or deliveries can be used individually. See page 5 for individual pump ratings. The front pump can be used at full rated output while the rear pumps are governed by the thru-shaft torque listed in the table below. THRU-SHAFT SIZING/COMPATIBILITY INPUT TORQUE PISTON INPUT TORQUE INPUT TORQUE ALLOWABLE PUMP PUMP RATED (TR) @ RATED PEAK @ PEAK THRUSHAFT TORQUE FRAME SIZE PRESSURE PRESSURE PRESSURE...

SINGLE PUMP Single Pump w/ Rear Ports Single Pump w/ Side Ports w/ Thru-shaft & w/Adapter Single Pump w/ Side Ports w/wo Thru-shaft FRAME PVWW HEIGHT WIDTH LENGTH WEIGHT SIZE PUMP SINGLE PUMP L H W LS LA R SIZE W/REAR PORTS LG inch mm inch mm inch mm inch mm inch mm lb kg R See appropriate data sheet for further details. All dimensions are approximate. For detailed dimensions, contact your Oilgear representative. Length Example: SINGLE PUMP * With rear ports PVWW - 034 - A1UV - RSAY - P - 1NNNN Size 034 (LR) length = 8.50 inches (215,9 mm) * With side ports, with or without thru-shaft PVWW...

DUAL PUMP DIMENSIONS and WEIGHTS W/O CONTROLS FRAME PVWW DUAL PUMP SIZES SIZE H HEIGHT W WIDTH L LENGTH WEIGHT inch mm inch mm inch mm lb kg 4.50 CAD DRAWING114,3 REVISIONS 4.32 PROE NO MANUAL BREAK CORNERS IF NOT SPECIFIED FINISH DIMENSION .XXX .XX DATE SCALE DUAL PUMP Length dimensions are for a rear ported dual pump. For further dimensions of these or other multiple combinations including other types of auxiliary pumps, contact your Oilgear representative. Length Example: DUAL PUMP Two Variable Delivery Pumps PVWW-098-A1UV-LDFS-P-1NNSN-AN/PVWW-046-LSAS-P-1NNNN Size 098 pump (LA) length =...

Construction Plug Case Drain Size Varies Pump Suction Port Size Varies Pressure Pick-up #2 Straight Thread SAE Port Control Pressure Remote Compensator #4 Straight Thread Purge Port SAE Port #4 Straight Thread SAE Port Construction Plugs NOTE: Pump shown in illustration above is a PVWW B frame with fixed load sense control (P-1NN/F), RH (CW) rotation. Port size and/or location can vary with different pump size or configuration. Refer to the proper installation drawings for your specific pump . A listing of standard installation drawings can be found on page 21. Typical Port Locations Pump...

Pump Controls PRESSURE* Pressure Compensator Pump Controls Ensures maximum pump flow until unit reaches preset control pressure setting then regulates output flow to match the requirements of the system while maintaining preset output pressure. Can be adjusted from 750 psi working pressure up to the maximum pressure rating of the applicable pump. “P-LNN” control provides a lower minimum pressure. Can be adjusted from 250 psi working pressure up to a maximum of 1500 psi. Soft Start Pressure Compensator Pump starts “softly” by going quickly at low pressure to a reduced flow setting, thereby...

VOLUME PRESSURE SENSING* Fixed Load Sense w/Pressure Compensator A constant flow output is maintained for a given flow control valve setting regardless of changes in drive speed and/or working pressure. The pressure compensator control over rides the load sense control when system pressure reaches the preset control pressure. Control pressure can be adjusted from 750 psi up to the maximum pressure rating of the applicable pump. Load sense differential is set at 170 PSID. See page 13 for remote control options. Works the same as the P-1NN/F control except it provides a lower minimum...

HORSEPOWER LIMITING* Horsepower Limiter w/Pressure Compensator Pump Controls Automatically reduces delivery, as unit pressure rises, to limit horsepower consumption. The pressure compensator control over rides the horsepower control when system pressure reaches the preset control pressure. Control pressure can be adjusted from 750 psi up to the maximum pressure rating of the applicable pump. Horsepower Limiter “P-1NN/G,” “P-1NN/C,” & “P-1NN/D” w/Load Sense A constant flow output is maintained for a given flow control valve setting regardless of changes in drive speed and/or working pressure...