Protective Corrugated Conduit Q-Systems QRK 40/25 FLEX, flexible corrugated tube, blue, 25 m

Q-Systems QRK 40/25 FLEX is a flexible corrugated protective conduit supplied as a 25 m roll in blue. The corrugated tube is designed to route and protect electrical cables and wiring in installations where mechanical protection and flexibility are required. Its corrugated profile allows for easy bending around obstacles while the flexible material enables cutting to custom lengths for specific runs.

Advantages

The corrugated design combines mechanical protection with flexibility, reducing stress on cables at bends and during installation. Being supplied as a continuous 25 m roll simplifies stocking and enables long uninterrupted runs without repeated joints. The blue color improves visual identification of protected cable routes. The tube is easy to cut to length and compatible with standard fittings for secure termination and coupling.

Suitable for

• Indoor electrical installations and cable routing in residential and commercial buildings
• Light-duty external cabling runs and conduit management where limited weather exposure occurs
• Protection of control, signal and power cables in HVAC and industrial equipment with non-aggressive environments
• Cable organization inside service shafts, distribution boards and machinery enclosures

Key specifications

• Product type: flexible corrugated protective conduit (corrugated tube)
• Length: 25 m continuous roll
• Color: blue for visual identification
• Flexibility: corrugated profile for easy bending around corners and obstacles
• Cut-to-length: suitable for on-site cutting to required run lengths
• Applications: cable protection for electrical, HVAC and light industrial use

How to use

Measure the required run and cut the corrugated tube to length with an appropriate cutting tool. Route cables through the tube before or after partial installation depending on access and ease of pulling; the flexible profile facilitates pulling cables through bends. Secure the conduit at regular intervals using clamps or straps compatible with the tube diameter to prevent sagging. Terminate with suitable fittings or connectors to ensure mechanical protection at entry points and to interface with junction boxes or panels.

Usage recommendations

For best results, avoid prolonged exposure to direct sunlight or aggressive chemicals; if the conduit will be used in harsher outdoor conditions, select products rated for UV and weather resistance. Use compatible glands and couplers at terminations to maintain mechanical protection and strain relief. When routing power or sensitive signal cables together, follow local installation standards for separation and grounding.