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Webtec Products Limited Portable Bi-directional Hydraulic ...

Webtec Products Limited Portable Bi-directional Hydraulic Testers Measures Flow, Temperature and Pressure Quality Hydraulic Test Equipment from the Webster Range Quality Hydraulic Test Equipment from the Webster Range CONTENTS. DESCRIPTION PAGE No. INTRODUCTION 1. DHT 402/752/752HP. Bi-directional Digital Hydraulic Testers 4. DHT 401/751. Bi-directional Digital Hydraulic Testers 6. HT 252/402. Bi-directional Analogue Hydraulic Testers 8. HT 502/752/752HP. Bi-directional Analogue Hydraulic Testers 10. DHCR 5/10/16/50/125/400/750/750HP. Bi-directional Digital Hydraulic Testers 12. DHC 50/125. Bi-directional Digital Hydraulic Testers 14. DHC 51/151. Bi-directional Digital Hydraulic Testers 16. HC 50/125. Hydratest Analogue Hydraulic Testers 18. HC 300.

Webtec Products Limited Quality Hydraulic Test Equipment from the Webster Range Portable Bi-directional Hydraulic Testers M e a s u r es Flow, Te mp e ra t u r e

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Transcription of Webtec Products Limited Portable Bi-directional Hydraulic ...

1 Webtec Products Limited Portable Bi-directional Hydraulic Testers Measures Flow, Temperature and Pressure Quality Hydraulic Test Equipment from the Webster Range Quality Hydraulic Test Equipment from the Webster Range CONTENTS. DESCRIPTION PAGE No. INTRODUCTION 1. DHT 402/752/752HP. Bi-directional Digital Hydraulic Testers 4. DHT 401/751. Bi-directional Digital Hydraulic Testers 6. HT 252/402. Bi-directional Analogue Hydraulic Testers 8. HT 502/752/752HP. Bi-directional Analogue Hydraulic Testers 10. DHCR 5/10/16/50/125/400/750/750HP. Bi-directional Digital Hydraulic Testers 12. DHC 50/125. Bi-directional Digital Hydraulic Testers 14. DHC 51/151. Bi-directional Digital Hydraulic Testers 16. HC 50/125. Hydratest Analogue Hydraulic Testers 18. HC 300.

2 Hydratest Analogue Hydraulic tester 20. Continued over page Quality Hydraulic Test Equipment from the Webster Range CONTENTS. Continued from previous page DESCRIPTION PAGE No. HPM 400 Series Handheld Digital Test System 22. Accessories and Optional Equipment Phototachometer TH2; 26. Phototachometer TH1A; 26. Loading Valve LT400R; 26. Loading Valve HV180 and HV400; 26. LT10 Remote Flowmeter; 26. Low Pressure Gauge Kit BP40; 27. Automatic Cutout and Low Pressure Gauge; 27. Fitting Kit of Adaptors; 27. Carrying Case for HC and DHC; 27. Carrying Case for HCR and DHCR 27. INTRODUCTION. DIGITAL OR ANALOGUE TESTERS AND. Bi-directional LOADING VALVE WITH INTERNAL SAFETY PROTCTION. The Webster Hydraulic Testers manufactured by safely bypass the loading valve INTERNALLY.

3 Webtec Products Limited are designed to with no loss of oil from the Hydraulic circuit, accurately measure flow, pressure, temperature reducing costs of replacing oil and environmental and speed. Models are available with digital or hazards. The remote readout tester allows the analogue readouts, loading valves and remote engineer to use the readout at the most readouts to suit a wide range of testing needs. convenient position for example, in the cab of the These easy to use diagnostic testers measure vehicle while operating the controls or reading the flow in BOTH directions; they can be connected pressure and flow while adjusting a relief valve etc. anywhere in the Hydraulic system to pin point Hydraulic faults, reduce machine downtime; help The external input on digital testers can be in preventive maintenance and condition calibrated by the operator to any flow block monitoring.

4 Manufactured by Webtec Products Limited . Analogue testers with remote input are calibrated Testers with built-in loading valve can be used to during manufacture. Testers can be supplied with simulate normal machine operation. The built-in a complete range of accessories which include safety discs protect the machine and operator in adapter fitting kits, low pressure gauges and event of excessive pressure, allowing oil to tachometers. Model No. Max. Digital Analogue Built-in Remote Remote Flow Loading Flow/Speed Readout LPM Valve Input DHT 402 400 . DHT 752 800 . DHT 752HP 800 . DHT 401 400 . DHT 751 800 . HT 252 300 . HT 402 400 . HT 502 600 . HT 752 800 . DHCR 5 5 . DHCR 10 10 . DHCR 16 16 . DHCR 50 60 . DHCR 125 150 . DHCR 400 400 . DHCR 750 800.

5 DHCR 750HP 800 . DHC 50 60 . DHC 125 150 . DHC 51 60 . DHC 151 150 . HC 50 50 . HC 125 125 . HC 300 300 . HPM 400 600 . Flow Ranges and Available Options (Denoted by asterisk) Optional loading valve 1. Quality Hydraulic Test Equipment from the Webster Range For the Mobile, Industrial and Agricultural Industries 2. Quality Hydraulic Test Equipment from the Webster Range BENEFITS OF TESTING. The Webster Hydraulic tester enables you to quickly The following diagrams show the typical tests which can pinpoint which component is malfunctioning and be used to quickly locate a defective pump, valve, causing low system performance. The problem could be cylinder or motor. Any of these components can cause internal leakage in the pump, motor or valve. slow operation and machine malfunction.

6 PUMP TEST. Flow and Pressure cable for flow No. 1. Phototach to check shaft rpm DHT Readout for Flow, Temperature and rpm. Flow No. 1 420 bar Gauge Pump No. 1. Load Valve for flow No. 2. Flow Meter for flow No. 2. Pump No. 2. Flow and Temperature cable for flow No. 2. Flow No. 2. The tester is connected to the pump outlet as shown. The then be compared with the manufacturer's pump is started and the pressure is increased by turning the cavitation problems can be checked by recording the pump loading valve handle to simulate the normal operation of the flow at various engine speeds. Case drain leakage can be machine, flow is recorded at various pressures throughout the measured by connecting the remote block. operating range. The pump output and internal leakage can DIRECTIONALCONTROL RELIEF VALVE AND CYLINDER TEST.

7 Remote Flow Block Photo- Tank DHCR. tachometer Readout Motor Relief directional Valve Valve Flow Block with Load Valve Relief Valve Test hose Pump Bi-directional Testing The tester is connected into circuit as shown. With the the tester will fall to zero. If the pressure is low, adjust the machine running as in the pump test, the flow is recorded at relief valve. It is not unusual for a relief valve to start opening various pressures. The readings obtained can then be below its maximum pressure setting and if the machine is compared with the results of the pump test to determine the operated above the cracking pressure, considerable leakage control and relief valve leakage. When the pressure is will occur causing loss of machine performance. The flow may increased to the maximum relief setting, the flow indicated by be tested in both directions.

8 3. Quality Hydraulic Test Equipment from the Webster Range Digital Hydraulic Testers Additional Input for Remote Flow, Temperature and Speed Measurement Up to 800 lpm Up to 480 bar Bi-directional Model DHT752HP 480 bar APPROVED. The Webster DHT Series Digital tester accurately Features measures flow, pressure, temperature and speed. ACCURATE measurement of flow, with Webster testers are designed for testing Hydraulic automatic linearisation giving an accuracy of pumps, motors, valves and hydrostatic transmissions. 1% of reading over a wide range. This easy to use diagnostic unit can pin point Hydraulic system faults which reduces downtime and SAFE to use in both directions of flow. Internal helps with preventive maintenance. oil by-pass protects system and operator The remote flow input can be easily calibrated by against over-pressure.

9 The operator for any Webster flow block. The remote input feature allows main Hydraulic circuits and drain Bi-directional for unrestricted connection and simplified testing. leakage flows to be measured simply at the turn of a switch. FAST checks on pumps, motors, valves, The tester comprises a turbine flow block and large cylinders and hydrostatic transmissions. easy to read digital display which indicates both flow and temperature. Speed and remote flow are selected REMOTE INPUTS. by switch when required. The flow readout is scaled in 1 - Flow lpm, gpm, and US gpm, selected by a push button. 1 - Temperature Optional accessories for the tester include a 1 - Speed phototachometer and remote flow blocks covering - 800 lpm Flow Range. ECONOMICAL low power consumption from standard battery.

10 Automatic "Power Off' feature. Portable AND LIGHTWEIGHT with angled case for easier viewing and cleaning. 4. Specifications Model No. Normal Flow Range Max. Flow Range Max. Pressure Temp Range Port Size (SAE &. metric threads lpm gpm US gpm lpm bar available). DHT402 20 - 400 - 80 - 100 10 - 400 420 0 - 120 C 1 BSPF. DHT 752 25 - 800 - 180 - 200 20 - 800 350 0 - 120 C 1 1 2 Flange DHT 752 HP 25 - 800 - 180 - 200 20 - 800 480 0 - 120 C 1 7 8 - 12 UN. Connections Adaptors Flow block connection by flexible hoses 1 - 2 metres Adaptor Fitting kits and flanges are available to suit (3 - 6ft) long. the range of flow blocks. Consult the sales office. Measurement and Indication Flow Temperature Measured by the electronic count of an axial turbine. Sensed by a thermistor pick-up in the oil flow for fast The large digital display reads in lpm, gpm or US gpm, response.


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