Introduction

The QXV-XL series high-output metering devices are engineered for single-line high-pressure lubrication systems. They are compatible with lubricants up to NLGI 2 grade that suit polyurethane seals. Featuring externally adjustable output, the devices are equipped with an indicator stem to enable visual operation inspection. Individual metering units can be easily removed for inspection or replacement. Two QXV-XL metering devices can replace one QX11 metering device. Each unit comes standard with a clear polycarbonate protective cap for enhanced component protection.

Technical Data

Description		Single Line Lubrication System
Class of Protection		IP65
No. of Outlets		1-8
Lubricant		NLGI 0#-2#
Operating temperature		-40 - 80℃
Operating Pressure		128-413bar
Material		Carbon steel
Connection Inlet		NPTF3/8
Connection Outlet		NPTF1/8
Dimensions (mm)	Number of outlets	1	2	3	4	5	6	7	8
	L1	/	/	31.8	63.5	95.3	127	158.7	190.4
	L2	63.5	76	108	140	171	203	235	267
Metering quantity		0.25 -5ml

Product Comparison

SPECIFICATION	SKF SL-V XL	WEIDUN QXV-XL
No. of outlets	1-6	1-8
Lubricant	NLGI 0#-2#	NLGI 0#-2#
Operating temperature	-40 to +82℃	-40 to +80℃
Operating pressure	128-413bar	128-413bar
Relief pressure	70bar	70bar
Material	Carbon steel	Carbon steel
Main line connection	NPTF3/8	NPTF3/8
Connection outlet	NPTF1/8	NPTF1/8
Metering quantity	0.25 - 5.0ml	0.25 - 5.0ml

Features/Equipment characteristics

1.Wide Compatibility: Compatible with manifolds featuring 1 to 6 ports, flexibly matching lubrication points of different quantities and adapting to various lubrication application scenarios.

2.Externally Adjustable Output: The lubricant output can be manually adjusted externally without device disassembly, enabling convenient and efficient commissioning.

3.Visual Operation Monitoring: The indicator pin is covered with a clear polycarbonate protective cap, which protects core components while allowing intuitive real-time observation of device operating conditions for quick fault detection.

4.Easy Maintenance: Individual devices can be quickly and independently removed, greatly simplifying inspection and replacement procedures, and reducing subsequent maintenance costs and downtime.

5.Practical Extended Function: Equipped with a dedicated fitting, allowing feed line filling via the alternate outlet port to improve overall device practicality and functionality.

Our Advantages

1.Flexible System Matching Compatible with 1–6 port manifolds, which can be freely matched according to the actual quantity of lubrication points, applicable to construction machinery, mining equipment and various heavy industrial single-line high-pressure lubrication systems.

2.Externally Regulatable Lubricant Output The metering flow can be adjusted externally without disassembly, supporting a wide adjustable range of 0.25–5.00 cm³ to meet diverse lubrication dosage demands.

3.Intuitive Visual Operation Inspection Equipped with an indicator stem covered by a transparent polycarbonate protective cap. Operators can directly observe the running status of each metering unit to quickly identify abnormal lubrication conditions.

FAQ

Q1: What lubricants can QXV-XL metering devices handle?

A1: It supports greases graded NLGI 0, 1 and 2 compatible with polyurethane seals, suitable for standard single-line high-pressure lubrication systems.

Q2: Is the lubricant output adjustable? Do I need to take the unit apart to adjust it?

A2: The output is fully externally adjustable. No disassembly of the metering device is required during adjustment, which brings efficient on-site commissioning.

Q3: How to confirm whether the metering device works normally?

A3: Each unit has an indicator stem with a clear polycarbonate protective cap. You can visually check the reciprocating movement of the indicator pin to judge normal lubricant delivery.