Description

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Single-line parallel lubrication systems use intermittent pressurize-and-vent cycles and direct injectors to deliver pre-measured lubricant simultaneously to multiple friction points. If one line restricts, all other independent injectors continue supplying precise amounts reliably.

Technical Specifications

Technical Parameter	Specification Range
Max Operating Pressure	Up to 25 MPa (250 bar / 3625 psi)
Discharge Volume / Injector	0.1 mL to 1.5 mL per cycle (adjustable options available)
Lubricant Compatibility	Grease (up to NLGI 2/3) & Oil (viscosity >= 46 cSt)
Reservoir Capacity	2L, 4L, 8L, 15L, 30L, up to 200L custom drums
Power Supply	24V DC, 110V/220V AC, 380V/415V AC (3-Phase)
Operating Temperature	-20°C to +80°C (Low/High temp options available)
System Material	Carbon Steel (zinc-plated), Stainless Steel 304/316

Product Features

Simultaneous Distribution: Parallel network design feeds all lubrication points at the exact same time under uniform pressure.

High Metering Precision: Individual volumetric injectors deliver exact, repeatable amounts of lubricant, eliminating under- or over-greasing.

High-Pressure Capability: Built to handle high system pressures, ensuring reliable performance even with high-viscosity greases (up to NLGI 2/3).

Modular Scalability: Easily expand or reconfigure lubrication points as your production lines or machinery grow.

Independent Point Operation: If a single lubrication point or injector experiences a blockage, the rest of the system continues to function normally without a complete operational halt.

Low Maintenance Cost: Fully automated cycles drastically reduce manual labor, human error, and unexpected catastrophic bearing failures.

Working Principle

Pressurization Phase: The centralized lubrication pump draws lubricant from the reservoir and builds pressure within the single main supply line.

Volumetric Dispensing: As pressure reaches the predetermined threshold, the parallel volumetric injectors (metering valves) activate, simultaneously discharging a pre-measured shot of grease or oil directly to each connected friction point.

Relief Phase: Once injection is complete, the pressure-relief valve opens, venting the main line back to the reservoir. This drop in pressure causes the internal pistons of the parallel injectors to reset, priming them automatically for the next lubrication cycle.

System Components

Lubrication Pump Station: Electric or pneumatic pump equipped with a transparent or metal lubricant reservoir (grease/oil).

Pressure Relief & Control Valve: Regulates main line pressure and safely vents pressure after each cycle.

Main Supply Distribution Line: Heavy-duty high-pressure tubing or piping connecting the pump to the network.

Volumetric Metering Injectors / Valves: Precision parallel distributors assigned to individual friction points.

Secondary Feed Lines: Flexible hoses or lines routing lubricant from injectors to bearings.

Electronic Control Panel (PLC): Programmable logic controller with a timer to automate lubrication intervals.

Monitoring Sensors: Pressure switches, cycle switches, and low-level reservoir sensors for real-time safety feedback.

Customization & OEM/ODM Capabilities

Tailored Reservoir Sizes & Materials: Custom tank capacities molded from high-impact plastic, carbon steel, or marine-grade Stainless Steel 316.

Electrical Integration: Custom voltage inputs, ATEX/explosion-proof motors for hazardous oil & gas environments, and custom PLC logic integration.

Specialized Manifold Layouts: Custom block arrangements and injector sizing tailored to complex OEM machine footprints.

Private Labeling: Custom branding, color-coding, and laser-etched nameplates for global machinery builders.

FAQ

Q: What is a Single Line Parallel Lubrication System?

A: It is an automated centralized lubrication network that uses a single pump station to distribute pressurized grease or oil simultaneously through a main supply line to independent volumetric metering injectors, feeding multiple friction points at once.

Q: How does a parallel lubrication system differ from a progressive system?

A: In a parallel system, all injectors operate simultaneously and independently-meaning if one point blocks, the rest of the system continues to function normally. A progressive system feeds points sequentially in a strict loop, where a single blockage stops the entire system.

Q: What types of lubricants can these systems handle?

A: Our systems are engineered to handle standard mineral oils, synthetic oils, fluid greases, and heavy industrial greases up to NLGI Grade 2 (and select Grade 3 formulations depending on ambient temperature).

Q: How do I know if a lubrication point is blocked?

A: Systems can be equipped with electronic pressure switches, cycle sensors, and visual pin indicators on the injectors. If a blockage occurs, pressure spikes or sensor failures trigger an immediate signal to your PLC or control panel.

Q: Can the discharge volume of individual lubrication points be adjusted?

A: Yes. Our parallel metering injectors are available in various sizes and adjustable configurations, allowing you to precisely tailor the exact volume of grease delivered to specific bearings based on their individual load requirements.

Q: Are your systems compatible with custom OEM machinery layouts?

A: Absolutely. As a direct manufacturer, we offer comprehensive OEM customization services, including custom reservoir sizes, tailored voltage specifications, specialized enclosure ratings (such as ATEX or IP65), and private labeling.

Q: What is the typical maintenance requirement for a parallel lubrication system?

A: Maintenance is minimal, primarily involving periodic lubricant reservoir refills, inspecting main line connections, and occasionally checking visual injector pins or sensor feedback to ensure autonomous operation.

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Single Line Parallel Lubrication Systems