PVK OPEN LOOP PUMPS

Performance Assurance page Features and Benefits page 4-5 Pump Controls page 7 Inlet Suction/Supercharge page 10 Copyright 2004 ■ 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 learned Oilgear’s primary business since 1921. For from decades of solving the most difficult...

PVK Open Loop Pumps Control interchangeability. ■ Facilitates changes, from stock, on the machine in the field. 1 Cylinder mounted polymerous journal bearings. ■ Enables operation with low viscosity or other special fluids. ■ Provides infinite bearing life. ■ Permits compact design. 2 Optional minimum volume stop. Quiet valve plate design. ■ Minimizes noise at typical electric motor speeds. 5 Thru-shaft availability. 6 ■ 100% thru-shaft capability. (PVK 140 only; PVK 270/370 is 50%) ■ Enables multiple pump installation from a single shaft. ■ Permits pump to drive auxiliary devices. Hardened cylinder...

Swashblock and saddle with special polymerous bearings. ■ Allows running on low viscosity or other special fluids. ■ Permits consistent control reaction. ■ Eliminates troublesome yoke bearings. ■ Provides long life. 9 Sealed front shaft bearings. ■ Allows operation with low viscosity or other special fluids. ■ Permits side loading. SAE keyed or SAE splined shaft. Maximum volume stop (standard). Patented pressure lubricated swashblock design. ■ Provides high performance for high pressure cycling operation.

NOMINAL DIMENSIONS UNIT SIZE in. FACE MOUNTING FLANGE NOMINAL PERFORMANCE SPECIFICATIONS POWER INPUT UNIT SIZE RATED CONTINUOUS PRESSURE MAXIMUM PRESSURE 10% of duty cycle FLOW RATE THEORETICAL MAXIMUM DISPLACEMENT MAXIMUM RATED SPEED* at max. rated rpm, rated cont. pressure & 14.7 psia (1 bar abs) inlet conditions at rated cont. pressure & max. rated rpm *Higher operating speeds may be approved. Consult the Oilgear application engineering department. PORT CONFIGURATION Shaft Rotation Port A left side facing shaft Port B right side facing shaft

PUMP CONTROLS MECHANICAL Electronic Servo Control A precision servo control designed to minimize hysteresis is available with several electro-hydraulic servo valve sizes to provide slow or very fast response rates. Pressure Proportional Displacement Control The control is designed with a spring feedback so that the pump will go to a stroke setting in response to a separate pressure signal. A pressure unloading option is available. Solenoid Operated Dual Position One, two or there pressure adjusting operators can be added to the basic “P” Control. The operator can be selected by integral solenoid...

PERFORMANCE CURVES

SOUND CURVES

PERFORMANCE CURVES ABSOLUTE PRESSURE - PSIA

HOW TO ORDER BLOCK NUMBER EXPLANATION VARIABLE PUMP EXAMPLE FIXED PUMPS EXAMPLE F = Load Sense Option G = Load Sense w/Horsepower Limiting Option H = Horsepower Limiting Option 13 – 5 = Input Horsepower: 100 = 100 HP Input @ 1800 rpm None Required .500 NPT w/o Light .500 NPT w/Light PG-11 w/o Light PG-11 w/Light 12 = R = Solenoid Operated Volume Control 12 A = Normally Open Proportional Device B = Normally Closed Proportional Device R = Remote (Customer Supplied Proportional Device) 1 = Solenoid Operated, One Volume 2 = Solenoid Operated, Two Volume 3 = Solenoid Operated, Three Volume 4 = Solenoid...

World Headquarters The Oilgear Company 2300 South 51st Street Milwaukee, WI USA 53219 phone: 414/327-1700 fax: 414/327-0532 www.oilgear.com For more information about your application or the products in this brochure, please contact your nearest Oilgear facility. AUSTRALIA Oilgear Towler Australia Pty. Ltd. BRAZIL Oilgeardo Brazil Hydraulica Ltd. CANADA The Oilgear Company FRANCE Oilgear Towler S.A. GERMANY Oilgear Towler GmbH INDIA Oilgear Towler Polyhydron Pvt. Ltd. Towler Automation Pvt. Ltd. ITALY Oilgear Towler S.r.l. JAPAN The Oilgear Japan Company KOREA Oilgear Towler Korea Co. Ltd. MEXICO...