Automated industrial machinery showing a series of custom lubrication sockets with return lines plumbed into a progressive grease distribution block.

Engineering schematic highlighting the internal bypass channel that routes trapped grease back to the main lubrication reservoir.

A matched OEM lubrication quick disconnect set with a pressure-relief female socket and heavy-duty male plug.

Lubrication Coupling Socket with Return Flow Port | Automated Grease Quick Disconnect – Fitsch Specialized Supply

OEM Lubrication Socket Testing at Fitsch Factory

A quality control technician at the Fitsch manufacturing facility testing an OEM lubrication return-port socket for zero-leak performance.

Tube End Connection Types:
24 degree cone connector
Port End Connection Types:
Metric O-ring port
Shapes of Hydraulic Fittings:
Straight
Hose End Connection Type:
One wire braid hoses

Availability:



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Product Description

In automated centralized lubrication systems, managing grease lines and line backpressure is a critical operational challenge. Welcome to Fitsch, your trusted segmented B2B supplier for high-precision, custom-engineered fluid and grease solutions. Our custom OEM Lubrication Coupling Socket with a Return Flow Port is designed specifically to ensure flawless, maintenance-free operation across automated grease machinery, progressive divider blocks, and centralized lubrication networks.

coupling sockets with return flow port (1).jpg

Part No.	G	G1	L	L1	SW	SW1	SW2	SK	FRI
CSRF100BAR	M 20 x 1,5	M 10 x 1	84	68	46	30	27	955-001-620	100-226

Material Composition & Engineering Standards

Base Material: High-tensile steel construction.
Surface Treatment: Environmentally friendly, Chrome-VI free galvanized plating for industrial corrosion resistance.
Internal Sub-components: Optimized sealing using engineering plastics and high-grade brass interfaces.

Standard industrial quick disconnects trap grease and high residual pressure within the line upon decoupling. This makes re-connection difficult and strains internal seals. Fitsch’s specialized OEM design integrates a dedicated return flow line port right into the socket housing. When the quick-release mechanism is disengaged, any trapped grease or line backpressure is automatically and safely vented back into the primary reservoir or tank circuit. This pressure-relief mechanism ensures effortless, zero-pressure disconnection, prevents messy grease spills on the factory floor, and protects your automated sensors from volatile pressure spikes.

Built for Custom Machinery & OEM Applications

Because we utilize a highly specialized, segmented factory model, Fitsch can manufacture these complex, dual-line lubrication components to your exact engineering drawings at highly competitive wholesale rates.

Tailored OEM Geometries: We manufacture these parts according to your exact dimensional constraints, making them ideal for integration into custom machinery manifolds, automotive assembly lines, and heavy mining lubrication grids.
High-Precision Engineering: Optimized for high-viscosity lubricants, heavy-duty industrial greases, and centralized oil mist systems.
Segmented Material Selection: Available in hardened carbon steel with durable trivalent zinc plating for factory floors, or high-grade stainless steel for food processing washdown zones and aggressive chemical machinery.

Stop dealing with pressure-locked lines and messy maintenance downtime. Partner with Fitsch to get precision-engineered, custom-threaded OEM lubrication assemblies shipped directly from our high-capacity CNC manufacturing facilities.