Scroll type dry vacuum pump

The scroll dry vacuum pump developed by our company applies the scroll concept and principle to achieve the characteristics of no oil, more stable operation, lower noise, and more energy saving, no pollution to the environment, and the pumping speed, life, energy consumption, etc. Better than other dry vacuum pumps.

1.SAFETY PRECAUTION

Before using the pump, be sure to read this instruction manual. Pay special attention to the requirements of Article 3 “Wiring Method” and Article 6 “Precautions for Use”. If you have any questions, please contact us.

2.PRODUCT INTRODUCTION

Scroll vacuum pump is a new type of dry vacuum pump developed in recent years. It is evolved from scroll compressor; it has the following advantages:

1.Small clearance, less leakage, high compression ratio, stable pumping speed in a wide pressure range;

2.The working cavity formed by the moving and static scrolls is symmetrical, and the pump has a simple structure and few parts, so it has low vibration and noise and high reliability;

3.Wide working pressure range, because the change of compression volume is continuous, so the change of driving torque is small, and the change of power is small;

4.Because it works in an oil-free environment, it has no pollution to the pumped container and can extract condensable gas;

5.The main components are made of composite polymer materials, which can remove corrosive gases.

3.WIRING METHOD

There are two types of power supply for the pump: single-phase and three-phase.

For three-phase power supply, a neutral wire (N) needs to be connected to the plug of the junction box. For other requirements, please refer to the provisions in Article 6 “Precautions for Use” of this manual.

4.PUMP MAINTENANCE

The pump should be inspected and maintained during the specified time, otherwise it will affect the performance and service life of the pump.

Check parts	Maintenance schedule		Remarks
	Every year or every 8000 hours	Every two years or every 16000 hours
Bearing	△	○
“O”ring	○	○
Framework oil seal	○	○
Tip seal	△	○
Rubber pad	△	○

※    △ — Exchange new parts

○ — According to actual working condition

※ The maintenance work is completed by the manufacturer, and the user cannot disassemble the pump by himself.

5.POSSIBLE FAILURES AND ELIMINATION METHODS

SYMPTOM	POSSIBLE CAUSE(S)	CORRECTIVE ACTION
The pump cannot rotate	Misoperation of power supply line protection components	Check whether the protection element is normal
	Loose or disconnected terminal	Check and repair the poor contact, replace the faulty line
	Voltage drop	Check the length and size of the cable
	Motor overload or open circuit	Return for repair
	There is a problem with the pump itself	Return for repair
	Thermal overload protector action	1. When three-phase power supply, check whether the power supply is missing phase 2. Check whether the wiring of the line is wrong 3. Check whether the protector itself is damaged 4. Check whether the voltage is normal 5. If there is no above problem, it should be returned to the factory for repair
Can not reach the vacuum pressure that required	The vacuum pipe is not well sealed	Check the sealing of the pipeline (leak detection)
	Damaged “O” seal	Return to the factory to replace the “o” ring
	Water vapor or solution is sucked into the pump	1. Install a filter to prevent water vapor or solution from entering 2. Open the air inlet and let the pump work for a few minutes, block the air inlet and open the gas ballast, and let the pump work for a while (about 24h)
	Blocked gas ballast	Adjust air pressure balance
Unusual sound or vibration	Loose connection	Tighten the screws on the connection part
	Not horizontal mounting	Adjust the installation position of the pump to make the pump as horizontal as possible to run
	Foreign matter enters the main body of the pump	Return for repair
	Abnormal air outlet	Return for repair
	Abnormal moter operation	Return for repair
	There is a problem with the pump itself	Return for repair

6.PRECAUTIONS FOR USE

When using a three-phase vacuum pump, ensure that the rotation direction of the pump is consistent with the direction indicated by the arrow on the pump, and it is forbidden to work in reverse;

When using a single-phase vacuum pump, make sure that the L and N wires of the power supply are connected to the L and N terminals of the motor junction box respectively. If they are connected in reverse, it will cause the pump to malfunction;

For safety, the grounding terminal in the motor junction box should be reliably grounded;

When connecting the power supply line, a thermal overload protector (such as a thermal overload relay, etc.) should be installed to prevent damage to the motor due to overload;

The pump should be installed horizontally when it is running, and the tilt angle should not exceed 5°;

When the pump is running, make sure there no foreign objects are enter the air inlet.

7.PACKING LIST

Ref. No.	Description	QTY	Remarks
1	Dry scroll vacuum pump	1
2	Operating manual	1	Including warranty card
3	Product certification	1
4	Plastic protective cover	2
5	plug	1

 

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