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Instruction Manual for 4D-SY Electric
Hydraulic Test Pump
Introduction
Model 4D-SY（6.3—80MPa）electric hydraulic test pump
is the up-to-date series product designed by the
Joint Design Group for Hydraulic Test Pump of the
General Machinery Research Institute under the
Ministry of Machine-Building Industry. It features
high level of “Mechanization, Electrification and
Automation”, long service life, stable performance,
flexibility and lightweight that the previous
products have, additionally, a drive unit and
cross-like converter are added. Therefore, all the
performance indicators of this series product have
met the requirements; various performances become
more stable and reliable with safe and easy
operation and power efficiency. In its structure, an
enclosed water tank is used, thereby reducing the
height of the whole unit and making it more compact
and attractive.
Application
Model 4D-SY（6.3—80MPa） electric hydraulic test pump
is mainly used in hydrostatic test for various
pressure containers, oxygen cylinder, pipe, valve
and steam boiler. It is a device in the new
technology of processing and high pressure source
for liquids in the lab.
The device is specially designed with clean water
and emulsion livid of 5-60℃ and oil of viscosity no
more than 45 mm2/s as the working media. The liquid
is filled up quickly and pressure goes higher
immediately when doing the testing initially. It is
to reduce the testing time, has great flow volume.
When the pressure is over 1.6Mpa (the pressure can
be automatically adjusted lower), the flow volume is
automatically reduced in order to keep the testing
slow and stable. Thus the product has two flow
volumes under high and low pressure, and it changes
automatically. Any kind of pressure testing can be
performed under the rated pressure output. Its
working temperature is 5-60℃.
Technical Parameters
The series hydraulic test pump has seven models and
its basic parameters are shown in Table 1. When
selecting the hydraulic test pump, the rated
pressure should be chosen based on the testing
pressure needed. The flow requirement shall also be
considered.
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