Rigid Steel Brake Lines with Lagging for Rear Axle: Renault Laguna 3

Rigid steel brake lines for the rear axle RENAULT LAGUNA 3 - 4control

Renault Laguna 3

• model years 2007 – 2015

• standard models - without 4control system

*After purchase please send us your VIN numberto select the right hose kit.

The kit includes four rigid steel brake hoses in heat shrink tubing

• Central front left - 7

• Central front right - 5

• Central rear left - 8

• Central rear right - 6

And two ŁPS-1 brass hose connectors

Additionally, we add 500ml of DOT-4 brake fluid to this set

Our ZPHS series rigid steel brake hose sets in heat shrink sleeve are made of high-quality ZISTA-07 class steel pipes, compliant with the PN-EN 10305-1:2016-05 standard and its newer versions.

• Outer diameter of the pipe: 4.75 mm

• Thickness walls: 0.71 mm

• Precision, seamless, double-walled tubes.

Anti-corrosion protection:

• Additionally, each hose is equipped with a protective heat-shrinkable sleeve that protects the pipe from scratches during installation and improves its anti-corrosion properties in the future.

• Rigid steel brake hoses can operate at a working pressure of up to 350 bar, and an additional safety factor of x3.9 means that the burst pressure exceeds 1250 bar. For comparison, in a typical braking system the maximum pressure reaches approximately 100 bar.

• Steel lines are more rigid than copper alternatives, but still retain appropriate plasticity.

• The pipe stiffens during profiling, so it is recommended to be careful when processing it to avoid the need for corrections.

• It is recommended to use the GR-01 bender for profiling steel lines. Using tools in which the pipe is pulled through guides may damage its protective layers.

Ready-to-install kit:

• The lines in our kit are ready for installation - they have the appropriate types of crimps, and the ends have the correct size and thread pitch. Each hose is custom-made and marked with its location, significantly speeding up installation.

• Hose dimensions are precisely matched based on the vehicle manufacturer's technical specifications. Additionally, our technical department checks the correct selection of parts based on the VIN, ensuring maximum accuracy and minimizing the risk of discrepancies between catalog data and the vehicle's actual condition.

High-quality galvanized steel ends:

• The cable ends in ZPHS sets are made of galvanized, high-quality free-cutting steel, ensuring high corrosion resistance. Each end is manufactured in Poland, guaranteeing the highest quality and compliance with European standards.

• ZPHS/M - ZPHS/I versions are also available, with brass or stainless steel ends.

• The cables are delivered in coils, properly secured for transport. They require profiling before assembly. A bender can be used for this, but a skilled mechanic can also handle it without specialized tools.

• This product is intended for professional use. Service work should only be performed by a qualified specialist.

• Rigid steel brake hoses with heat shrink sleeve are the perfect solution for customers looking for the highest quality products that will keep their vehicle in compliance with factory standards. They guarantee durability, reliability and aesthetics, ensuring many years of trouble-free operation.

FAQ – Frequently Asked Questions

1. What are the advantages of steel brake lines over copper?

• Steel lines are characterized by higher mechanical strength and longevity, making them the preferred choice for new vehicles and in applications requiring exceptional durability.

• Anti-corrosion coatings effectively protect the lines from moisture, road salt, and other harmful atmospheric factors, ensuring long-term protection and reliability.

2. What are the disadvantages of steel brake lines over copper?

• Steel lines are more demanding to process – crimping and swells require specialized tools and higher skill levels.

• Profiling and installation are more difficult than copper lines, so replacement is recommended for experienced mechanics.

• The longer installation time also means higher replacement costs.

3. How are steel lines superior to copper lines?

Rigid steel brake line sets are characterized by higher mechanical strength and are used by most manufacturers for initial assembly. At PHU DONOCIK, we use additional protective heat-shrink sleeves to enhance their corrosion resistance.

Steel lines are a premium product for demanding customers who want to maintain the vehicle's factory quality over the long term. Steel brake lines can also be made with brass or stainless steel fittings.

4. What are the disadvantages of copper pipes?

• Copper pipe is less mechanically durable than steel pipe, but its strength parameters significantly exceed the loads typical of braking systems (minimum burst pressure is 7x higher than that in a braking system).

• Copper can also electrochemically react with steel or aluminum fittings, which can make disassembly difficult over time. For this reason, copper pipes are primarily intended for single use; there is a high probability of damage to the pipe during disassembly – and after each disassembly of a rigid pipe, it is recommended to perform new swells.

(To eliminate this problem, you can use our brass or stainless steel fittings.)

5. Summary:

• Both types of lines ensure long-term and safe operation of the braking system. The choice of material depends on the user's preferences: copper lines are an economical, easy-to-install solution, ideal for older vehicles, while steel lines are an option for customers who value durability and factory quality for years to come.

What to choose: copper ZPHM or steel ZPHS?