The oil-free negative pressure vacuum pump is an air
compressor with fully oil-free lubrication, which
compresses air purely and has a large exhaust volume.
This oil-free vacuum pump has a very wide range of
applications and can be used with various equipment,
such as nitrogen blowers , solid - phase extraction
instruments, thin-layer chromogenic sprays, solvent
filters, atmospheric samplers, etc., to meet various
vacuum or positive pressure needs.
Product Overview：
DC Adjustable Speed Motor: Adopts a DC speed-
regulating motor with a diaphragm - sealed air
chamber to ensure one-way gas flow. The dual air
chambers work in series, providing high vacuum
degree.
Product Features：
Non-Oil Pump Design: The gas flowing in the air
chamber is relatively isolated, ensuring no pollution.
Portable Design: The ergonomic design makes it
convenient to use and achieves better heat dissipation.
Surface Treatment: Electrostatic spraying ensures
uniform color and stronger adhesion.
Vacuum Gauge Monitoring: Real-time monitoring of
vacuum degree, suitable for both positive and negative
pressure use (positive pressure cannot display pressure
and is an additional function).
Maintenance-Free: No daily maintenance required,
with a long service life.
Plug in the power cord and turn on the ON/OFF
power switch at the back of the machine.
Operation and Usage：
1
Adjust the knob until the pump starts. When the
knob is turned to the maximum, the pump
works at maximum efficiency. " + " indicates
increased air flow, and " - " indicates decreased
air flow. The pressure can be adjusted manually.
2
There are two air ports, IN and OUT, on the back.
IN represents the suction port, and OUT
represents the air outlet.
(Note: The pressure gauge only displays the negative
pressure of suction and cannot display the positive
pressure of inflation.)
(Note: that the pressure output is only suitable as
a blower, perhaps for blowing bubbles into a
beaker of water or similar. it's a VACUUM PUMP,
NOT a compressor.）
3
After using the pump, turn the knob to the
minimum to the left, turn off the power
switch at the back, and store it in a dry place.
4
VACUUM PWMP
GLT-VP-15S
Warning: Handle with care, contains fragile glass
components.
Warnung:Vorsichtig behandeln, enth It empfindliche
Glasbauteile.
Avertissement: Manipulez avec pr caution,contient
des composants en verre fragiles.
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Brand: GOYOJO
Product name: High precision electronic balance
Model: GY5003
Manufacturer: GOYOJO Industrial Technology
(shenzhen) Co., Ltd
Address: Shenlan,No.lLianteng Road, Guangming
District,Shenzhen city,Guangdong Province,
518107,China
E-mail: sign2@goyojo.com
Skype/ph/whatsapp: +8619924549574
VACUUM PWMP GLT-VP-15S
Operation and Usage：
VACUUM PWMP GLT-VP-15S
LAB VACUUM PWMP
USER MANUAL
1 - It is strictly prohibited to use the instrument in
flammable, explosive or underwater environments,
and to use this instrument to handle dangerous media.
2 - It is strictly prohibited to operate the instrument or
plug/unplug the instrument power supply with wet
hands.
3 - It is strictly prohibited to use a power supply voltage
that does not match the specified working voltage.
4 - It is strictly prohibited to suck gases containing
explosive gases!
5 - The vacuum pump does not have anti-corrosion
performance and cannot suck corrosive gases!
6 - The instrument should be kept clean and dry. It is
strictly prohibited for solutions to flow into the
machine to avoid damaging the machine.
The power supply should be cut off when not in use.
7 - If you find any peculiar smell or abnormal noise
of the instrument during use, you should immediately
cut off the power supply and contact our after-sales
service department as soon as possible.
Model: GLT-VP-15S
Rated Voltage/Frequency: 110-220V/50Hz
Rated Power: 40W
Pump Head Type: Two-stage pump, used in series
Maximum Vacuum Degree: -0.085 MPa
Maximum Flow Rate: 15L/min
Interface Specification: 5/16"
Medium and Ambient Temperature: 5℃-40℃
Ambient Relative Humidity: <80%
Pump Head Material: ABS
Working System: Continuous operation for 24 hours
Noise: <60db
Maximum Rotational Speed: 2600RPM
Flow Regulation: Equipped with a speed-regulating
device to adjust the air flow of the vacuum pump
Precautions：
