Introduction

The QX1 is a single line injector designed for single line lubrication systems. The QX1 single-line distributor features manually adjustable displacement, independent installation for lubrication points, or modular assembly via mounting bases. It offers easy observation, high precision, and a plungertype check valve for more stable and reliable operation. It also includes an indicator rod protective sleeve to safeguard the adjustment knob. Each pressure buildup and release cycle in the supply line causes one outlet to discharge once.

Technical Data

QX1 single line injector	specification
Number of outlets	1 to 8
Lubricant	NLGI 0 to NLGI 2
Operating temperature	-26 to 176 °C (-15 to 349 °F)
Operating pressure	127 to 241 bar (1,842 to 3,495 psi)
Relief (vent) pressure	41 bar (595 psi)
Metering quantity	0.13 to 1.31 ml per cycle (0.008 to 0.080 in³)
Main line connection	NPTF 3/8
Outlet connection	NPTF 1/8
Material	Carbon steel
Ingress protection	IP65

Dimensions by Number of Outlets

Number of outlets	1	2	3	4	5	6	7	8
L1 (mm)	/	/	31.8	63.5	95.3	127	158.7	190.4
L (mm)	63.5	76	108	140	171	203	235	267

Product Comparison

Specification	SKF SL-1	WEIDUN QX1
Number of outlets	1-6	1-8
Lubricant	NLGI 0-2	NLGI 0-2
Operating temperature	-26 to 176 °C	-26 to 176 °C
Operating pressure	127-240 bar	127-241 bar
Relief pressure	41 bar	41 bar
Material	Carbon steel	Carbon steel
Main line connection	NPTF 3/8	NPTF 3/8
Outlet connection	NPTF 1/8	NPTF 1/8
Metering quantity	0.016-1.31 ml	0.13-1.31 ml

Features/Equipment characteristics

Accurate, adjustable output
The output can be adjusted externally between 0.13 and 1.31 ml per cycle. You can match each point to its real lubricant demand, which avoids under-lubrication and cuts waste.
Visual monitoring with the indicator pin
The built-in indicator pin lets technicians check injector operation at a glance. Blocked lines and faulty injectors are easy to spot without disassembly, so troubleshooting takes less time.
Independent, quick replacement
Each metering unit is a separate cartridge on the manifold. If one injector needs service, remove and replace it alone. There is no need to dismantle the whole manifold, so downtime and maintenance cost stay low.
Flexible outlet layout
An alternate outlet fitting gives you more options for routing feed lines. This simplifies piping on compact machines and can reduce installation cost.

Our Advantages

1.Easy maintenance: single injector can be replaced individually without removing the whole manifold, reducing downtime.

2.Wide adaptability: mountable in any orientation, adjustable output from outside, compatible with NLGI 0–2 grease.

3.Reliable monitoring: built-in indicator pin for quick working status check on site.

4.Strong pressure resistance: max operating pressure up to 241 bar, suitable for heavy-duty applications.

5.Certified quality: CE certified, ready for integration into your turnkey projects.

FAQ

Q: How do I know whether the QX1 is working normally?

A: Check the built-in indicator pin. When the pump delivers pressure, the pin moves out and retracts with each lubrication cycle. A pin that does not move points to a blocked line, insufficient system pressure or a failed injector.

Q: How is the output adjusted?

A: The output is adjustable from outside the unit within a range of 0.13 to 1.31 ml per cycle, so you can match the volume to the needs of each lubrication point.

Q: Does the mounting position affect performance?

A: No. QX1 injectors can be mounted horizontally, vertically or upside down without affecting metering accuracy or operation. This helps when installation space is limited.

Q: Which lubricants can I use?

A: QX1 injectors handle lubricants from NLGI 0 to NLGI 2 that are compatible with fluoroelastomer packings. Always confirm the compatibility of your specific grease with your lubricant supplier.

Q: Which industries use QX1 injectors?

A: Mining and mineral processing, construction machinery, steel and metallurgical plants, cement plants, ports and harbor equipment, wind turbine gearboxes and railway equipment, among other heavy-duty machinery with single line centralized lubrication.