Brand Name: Yuan shin
Model Number: WD-021S
Place of Origin: Jiangsu, China (Mainland)
mini cooling water circulating pump used for coolant water tank of welder
Pump information:
WD-021S high temperature centrifugal Pipe pump is specialized developed for welding - machine industrial with the character of small volume ,fine appearance, heat-resistance, low noisy and high pressure. Pump motor was import German technology of small motor base and big power which can save more installation space for customer
Pump characteristics
fine appearance, small vibration and low noisy
pump body is corrosion-resistance
high head and fast flow rate
easier maintance
Pump material
Pump body: brass
Shaft axis : SUS304
Impeller: brass
Motor insulation class F class
Motor ingress protection class: IP 54, Motor shell is SUS304
Using condition:
Thermal conductivity water :+50℃~+160℃
Thermal conductivity oil :+50℃~+200℃
Ethylene glycol:-30℃~+180℃
The working temperature :-5℃~+40℃
Technical parameter:
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Outlet |
Power |
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WD-021S |
G1/4" |
G1/4" |
0.16KW |
50Hz |
2760rpm |
36 m |
10 L/min |
4 Kg |
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Installation sketch:
Character graph:
Test condition:
The above characteristic testing is base on water transferring with the normal speed under 20 degrees. The error of the capacity and head is about 10%, characteristics’ error is about 10%. The pump characters change according to the difference of the liquid mediums’ proportion and density
Electrical connection
The connection of the electrical wiring must be manipulated by a qualified electrician with suitable certificates.
Clarify if the motor matches the power supply. The electrical wiring must be connected with
the power source according to the wiring diagram attached to the junction box and provisions of the motor nameplate.
The motor should be properly grounded, grounding device is in the junction box, if necessary,
you can also make use of the machine feet of the motor to fix the bolts to the ground.
Do correct wire connection:
Power supply wire:green wire is grounded line;Black ,red wire is power supply;
If you are interested in , please contact with me
Email : lois412@163.com
Phone: 0086-18550061324
Whatsapp: 0086-18550061324
Skype : susan3683