DRB-L Series Electric Lubrication Pumps - DRB-L195Z-Z

DRB-L Series Electric Lubrication Pumps (20MPa)

I. Overview

The DRB-L series electric lubrication pumps are suitable for double-line centralized lubrication systems with numerous lubrication points, wide distribution, and high oiling frequency. They supply grease to the lubrication areas through a double-line distributor, meeting the needs of various machinery and equipment, particularly suitable for large-scale units and production lines.

This series of electric lubrication pumps can be configured into a dual-line ring-type centralized lubrication system, where the main pipeline of the system is arranged in a ring shape, controlled by the system pressure at the end of the return lubrication pump to operate the hydraulic directional valve, alternately supplying lubricant through the two main pipelines; see the specifications in the external dimensions drawing. It can also be set up as a dual-line terminal-type centralized lubrication system, where the pressure control valve at the end of the main pipeline operates the solenoid. The directional valve alternately supplies lubricant through the two main pipelines; see the specifications in the external dimensions drawing.

This series of electric lubrication pumps features a double plunger mechanism for reliable operation. The reduction gear is housed within the pump body, ensuring a compact structure with a small footprint. Equipped with the corresponding electric control box, it can achieve automatic control.

II. Technical Specifications

Use grease with a penetration not less than 265 (at 25°C, 150g) 1/10mm (NLGI 0#-2#).

DRB-L Series Electric Lubrication Pumps Dimensions

Section 3: Model Description　　　

Figure Symbols

Five. Wiring Instructions

Section 6: Working Principle

This series of electric lubrication pumps is composed of components such as plunger pumps, oil reservoirs, directional valves, and electric motors. The plunger pump, driven by the electric motor,吸取lubricant from the oil reservoir, and pressurizes it to the directional valve. The lubricant is alternately delivered through two outlets via the directional valve. When one outlet is pressurizing lubricant, the other outlet connects with the oil reservoir for unloading.

The ring-shaped electric lubrication pump is paired with a hydraulic directional valve, featuring four ports. It is connected to two main supply lines, each with a return line that leads back from two supply lines. The directional valve is actuated by the oil pressure within the return lines.

Terminal-type electric lubrication pump with solenoid directional valve, featuring two interfaces, connected to two main oil supply lines, and operates by reversing the oil supply through the solenoid's on/off action.

The operation principle of the plunger pump directional valve is detailed in the user manual.

Section 7: Instructions for Use

1. This series of electric lubrication pumps should be installed in an environment with suitable temperature, minimal dust, low vibration, and easy access for adjustment, inspection, maintenance, and lubricant replenishment. Ideally, they should be positioned at the center of the system to minimize pipeline length and maintain the lowest pressure drop, enabling the pump to generate sufficient pressure to overcome the resistance at the lubrication points.

2. Prior to use, add industrial gear oil N220 to the deceleration chamber of the plunger pump to the level indicated by the oil gauge.

3. Refill the oil reservoir using the DJB-V70 electric fuel pump from the lubricant pump's replenishment port. The lubricating grease used should be clean and free of any impurities.

4. The lubrication pump rotates unidirectionally; it must be wired according to the rotation direction marked on the motor.

5. The standard setting pressure of the pump overflow valve is 23MPa, which can be adjusted arbitrarily within the range of 0 to 20MPa. It is not allowed to exceed 15% of the pump's nominal pressure (23MPa) during operation.

6. The hydraulic directional valve of the annular lubrication pump is set at 5 MPa.

7. This series of electric lubrication pumps is designed for indoor installation. Protective measures must be taken when used outdoors or in harsh environments.

Section 8: Outline Drawing

DRB-L60Z-H, DRB-L195Z-H Electric Pump External Views DRB-L585Z-H Electric Pump External View

DRB-L60Z-Z, DRZB-L195Z-Z Electric Pump External Views  |  DRB-L585Z-Z Electric Pump External View
 

Section 9: Order Instructions

1. This series of electric lubrication pumps is equipped with the following four types of standard electrical control boxes, which can be selected according to different control requirements.

1.1 DEA-2E Type Terminal Electric Control Box 1.2 DEA-2L Type Ring Electric Control Box 1.3 R1902 Type Ring Electric Control Box with Lubricant Control 1.4 R1904 Type Terminal Electric Control Box with Lubricant Control

2. Order components for this series of electric lubrication pumps according to the selection table below.