Hydraulic primary unit Type ABPAG

Transcription

1 RE /11.02 Replaces: Hydraulic primary unit Type PG Reservoir volumes 63 to 400 litres Maximum operating pressure 360 bar H 2375 Type PG.. Overview of contents Contents Page Features 1, 2 Ordering details 2 Technical data, noise values 3 Selection tables 4, 5 Power unit with oil/water heat exchanger (standard) Circuits 6 Unit dimensions 7 Power unit with oil/air heat exchanger Circuits 8 Unit dimensions 9 Commissioning guidelines 10 Features Hydraulic primary units are used for supplying hydraulic systems that have closed loop hydraulic circuits. The power units are designed for a maximum operating pressure of = 360 bar at the maximum displacement volume of the axial piston pump. Dependent on the controller and adjustment system selected, they supply a flow on the actuator side which suits the application. These types of power units can be found in the following application areas: Shredder systems Stirring systems Mixers Centrifuges Winders High pressure compressors 2002 by osch Rexroth G, Industrial Hydraulics, D Lohr am Main ll rights reserved. No part of this document may be reproduced or stored, processed, duplicated or circulated using electronic systems, in any form or by means, without the prior written authorisation of osch Rexroth G. In the event of contravention of the above provisions, the contravening party is obliged to pay compensation. This document was prepared with the greatest of care, and all statements have been examined for correctness. This document is subject to alterations for reason of the continuing further developments of products. No liability can be accepted for any incorrect or incomplete statements. PG 1/10 RE /11.02

2 Features Primary units are of a modular design. The basis is the type 4VG or 4VSG variable displacement pump. ll of the components required for closed circuit applications, e.g. pressure relief valve, feed and flushing valve (when required), are fitted into or onto a valve block. The controller type for the 4VG pumps can be selected from RE and for the 4VSG to RE The modular system for the primary unit comprises of an oil reservoir, designed as a mounting frame, with built-on electric motor, frame type 35 and further components such as: drive coupling, pump mounting bracket, pressure gauge, float switch, filler/breather and anti-vibration mounts. Isolation, damping The mechnical isolation of the motor pump group is via damping rings and anti-vibration mounts. Due to the open design all of the components are easily accessible. The complete unit is mounted onto anti-vibration mounts which have to be anchored to the foundations. Space required Due to the compact design these units only require a relatively small floor space. Filtration These units are fitted with a filter in the boost circuit. Electrical clogging indicators indicate when the filter elements have to be changed. Operating medium These units are suitable for use with hydraulic oil HLP to DIN , part 2. viscosity class of ISOVG 46 to DIN parts 1 and 2 is recommended. Ordering details The pressure medium is to be filled via the filling filter or with the help of a suitable filter/pump unit. Pressure limitation The pump is fitted with two pressure relief valves, one of each is fitted to each high pressure side to provide overload protection. Flow adjustment s standard an electrial adjuster with proportional solenoid is fitted. The relevant amplifier card must to be ordered separately. Cooling With oil/water heat exchanger the preferred cooling medium is ammonia-free sweet water (e.g. cooling water); When using spring, stream or river water as well as brackish water, a water analysis is required so that the cooler material can be defined. The water consumption is dependent on the loading of the power unit and the inlet temperature differential. If a water connection is not available, an oil/air heat exchanger can be fitted as an option. It, however has to be taken into account that with enclosed rooms an increase in the ambient temperature is to be expected. PG M Primary unit Reservoir volume in litres (NS) Reservoir NS 63 = 0063 Reservoir NS 100 = 0100 Reservoir NS 160 = 0160 Reservoir NS 250 = 0250 Reservoir NS 400 = 0400 Material Steel St 37.2 Stainless steel Pump type See selection table on pages 4 and 5 Electric motor (frame size, no. of poles, power in kw) See selection table on pages 4 and 5 Heat exchanger Without heat exchanger With oil/water heat exchanger (standard) With oil/air heat exchanger (optional) = S = E = No code = W = L = Variant M = NR seals, suitable for mineral oil (HLP) to DIN For other fluids, on request Heaters No code = Without heater H = With heater Thermostat No code = Without thermostat T = With thermostat Ordering example: PG ST/4VSG71/225M-4-45/WTHM- PG ST/4VG180/280M-4-90/LTHM- RE / /10 PG

3 Technical data (for applications outside these parameters, please consult us!) Reservoir capacity L 100; 160; 250; 400; 630 Pressure fluid Mineral oil (HLP) to DIN , part 2 Please take into account the guidelines stated within the catalogue sheet RE ! Pumps and controller types 4VG to catalogue sheet RE VSG to catalogue sheet RE Filter rating, breather filter µm 10 Return filter µm 10 Heat exchanger Standard Oil/water Optional Oil/air Viscosity range mm 2 /s 10 to 1000 (recommended: 16 to 36) Operating pressure, max. bar 360 Electric motor Current c asynchronous motor Voltage Protection 400/690 V at 50 Hz or 460 V at 60 Hz Voltage range to IEC38 IP55 Frame type 35 Pipework type Double cutting edge ring to DIN 2353; light series for tank and leakage lines; SE flange (6000 PSI) for high pressure lines on the pump (other types of fittings on request) Surface finish 1st undercoat: ll steel components (reservoir also internally coated) coated with zinc dust paint 2nd undercoat: Epoxy colour tone RL 5009 Final coat in various RL colour tones on request Noise values for primary power units Noise pressure level in d() p Flow Pump type 4VG / NS Pump type 4VSG / NS in bar in L/min q Vmin q Vmax q Vmin q Vmax q Vmin q Vmax q Vmin q Vmax q Vmin q Vmax Noise pressure level To DIN parts 1, 2 and 41 Measured at n = 1450 min -1, n = 41 mm 2 /s and t = 50 C Measured distance, noise measurement device power unit: 1 m Pressure fluid: Mineral oil HLP to DIN part 2 The noise pressure levels of the 4VG pump are obtained by means of the notches D 8314 KH230. Please note! Noise reflections at the final place of installation can lead to increased noise pressure levels. PG 3/10 RE /11.02

4 Selection table: power unit with 4VG pump The Material No. can be obtained after selecting the reservoir size and the pump pressure. Contained within the Material No. are all of the components stated in the hydraulic circuit diagram. Material No. with W = Oil/water heat exchanger Material No. with L = Oil/air heat exchanger Reservoir volume 63 litres L R R VG M R R L R R L R R VG M R R L R R L R R VG L R R L R R Reservoir volume 100 litres L R R VG S R R M R R L R R VG L R R S R R M R R L R R VG S R R M R R Reservoir volume 160 litres S R R VG M R R M R R S R R VG M R R M R R S R R VG M R R M R R Reservoir volume 250 litres M R R VG S R R M R R Reservoir volume 400 litres S R R M R R VG S R R M R R L R R ) System weight without oil RE / /10 PG

5 Selection table: power unit with 4VSG pump The Material No. can be obtained after selecting the reservoir size and the pump pressure. Containted within the Materianl No. are all of the components stated in the hydaulic circuit diagram. Material No. with W = Oil/water heat exchanger Material No. with L = Oil/air heat exchanger Reservoir volume 63 litres Power P Electric motor Material No.. Material No. Weight 1) L R R VSG M R R L R R L R R Reservoir volume 100 litres L R R VSG L R R S R R Reservoir volume 160 litres S R R VSG M R R M R R S R R VSG M R R M R R Reservoir volume 250 litres M R R VSG S R R M R R Reservoir volume 400 litres S R R M R R VSG S R R M R R L R R M R R VSG S R R M R R ) System weight without oil PG 5/10 RE /11.02

6 Circuits: PG with 4VG-/ 4VSG pumps and oil/water heat exchanger With 4VG pump Power unit limit T1 R T2 PS Fa Fe M X1 X2 S M With 4VSG pump Power unit limit K M M MSp M M T K2 K3 R(L) P S1 Parts list: Reservoir Sight glass Filler/breather Float switch Thermostat Immersion heater Electric motor Pump mounting bracket Coupling xial piston pump Pressure filter Pressure gauge Pressure gauge Heat exchanger Water valve Check valve RE / /10 PG

7 Unit dimensions: (Dimensions in mm) PG with 4VG-/ 4VSG pumps and oil/water heat exchanger "" 150 L1 L2 L3 L4 L ; View "" 150 H3 Reservoir NS L1 L2 L3 L4 L H2 H1 Reservoir NS H1 H2 H For item explanation see page 6. PG 7/10 RE /11.02

8 Circuits: PG with 4VG-/ 4VSG pumps and oil/air heat exchanger With 4VG pump Power unit limit T1 R T2 PS Fa Fe M X1 X2 M S With 4VSG pump Power unit limit K M M MSp M M T K3 R(L) K2 P S1 Parts list: Reservoir Sight glass Filler/breather Float switch Thermostat Immersion heater Electric motor Pump mounting bracket Coupling xial piston pump Pressure filter Pressure gauge Pressure gauge Heat exchanger Check valve RE / /10 PG

9 Unit dimensions: (Dimensions in mm) PG with 4VG-/ 4VSG pumps and oil/air heat exchanger H4 H3 H2 H Reservoir NS L1 L2 L3 L4 L L1 L2 L3 L4 L5 max min ; "" Reservoir NS H1 H2 H3 H View "" For item explanation see page 8. PG 9/10 RE /11.02

10 Commissioning guidelines General The power units supplied by ourselves have been tested for function and performance. Changes in any form or manner are not permitted, as this would invalidate any guarantee claim. Repairs may only be carried out by the manufacturer or authorised agent or subsidary. No guarantee will be accepted for commissioning carried out by third parties. Commissioning Only fill the pressure fluid via a filter which has the necessary retention rate. Take into account the direction of rotation arrow when connecting the electric motor. Start the pump without load and let it displace oil without pressure for a few seconds in order to provide sufficient lubrication. Never run the pump without oil. If the pump, after approx. 20 seconds, does not displace oil without any bubbles then the system has to be rechecked. fter the operating values have been reached, check the pipe connections for leakage and check the operating temperature. leeding efore commissioning, the pump housing must be filled with oil. Important guidelines ssembly, maintenance and servicing of the power unit must only be carried out by authorised, trained and instructed personnel! The power unit must only be operated within the permitted limits! When carrying out any work on the power unit, switch the system to zero pressure! Unauthorised conversions and modifications which affect the safety and function are not permitted! Provide portective measures and do not remove any existing protective devices. Ensure that the fixing bolts are correctly fitted! (Take into account the prescribed tightening torque!) The general valid safety and accident prevention regualtions must be adhered too! Note: With reference to the EC machinery guidelines 89/392 EWG, annex II, section : The supplied assemblies have been manufactured in accordance with the harmonised standards pren 982, pren 983, DIN EN 292 and DIN EN Commissioning may not take place until it has been confirmed that the machine, into which the assembly is to be installed, conforms with the regualtions stated within the EG guidelines. Engineering guidelines Comprehensive insturctions and proposals can be found in the Hydraulic Trainer, volume 3 RE , "Planning and design of hydraulic power systems". osch Rexroth G Industrial Hydraulics D Lohr am Main Zum Eisengießer 1 D Lohr am Main Telefon / 18-0 Telefax / Telex documentation@boschrexroth.de Internet osch Rexroth Limited Cromwell Road, St Neots Cambs, PE19 2ES Tel: / Fax: / info@boschrexroth.co.uk The data specified above only serves to describe the product. No statements concerning a certain condition or suitability for a certain application can be derived from our information. It must be remembered that our products are subject to a natural process of wear and ageing. RE / /10 PG