nVent Lenton

Why use nVent Lenton Coupler System

Reduced Installation Time & Labour

Their taper-threaded couplers require only about 4–5 turns to fully engage / splice the bars, whereas many parallel-threaded or other systems need 10–12 turns. This speeds up installation significantly, especially for large numbers of couplers. 

The self-aligning taper thread helps prevent cross-threading, which reduces mistakes and rework.  

High Quality & Reliability

• Their taper thread design (conical taper) gives more uniform load distribution across threads and better engagement than many parallel-threaded designs. This leads to better performance, less slip under load, etc.
• They have strong certifications and approvals (e.g. CARES, BS standards etc.) which helps ensure quality and acceptance.

Versatility / Flexibility

Wide range of coupler types to suit different situations:

• Standard couplers (for when one or both bars can be rotated).  
• Position/transition couplers (for cases when bars cannot be rotated or are restricted axially).  
• Weldable couplers for joining rebar to structural steel or plates.  
• Coated, stainless steel, different finishes for corrosion resistance. 

Slim Profile / Small Size

• The couplers are relatively slender, so they help maintain concrete cover and allow tighter bar spacing. That can be essential in congested rebar areas.

Good Load Transfer & Structural Integrity

• They provide continuity of the reinforcing steel; the splice behaves close to a continuous bar in many cases.  
• In tensile, compression, and stress-reversal (e.g. seismic) scenarios, the performance is good. 

Corrosion Resistance Options

• Stainless steel or coated coupler options help where the environment is corrosive (bridges, marine, de-icing salts).

Reduced Inspection & Testing Costs (versus alternative methods)

• In some cases, using couplers reduces the need for certain tests or inspections needed when welding or lap splicing, which saves cost.

Improved Safety and Reduced Risk on Site

• Less manual handling / fewer labour hours means lower exposure to accidents.
• By reducing cross-threading and misalignment risk, fewer reworks and site errors.

Suitability for Prefabrication / Offsite Work

• Couplers allow prefabricated cage assemblies, precast elements where part of the coupler is fitted in the factory and the rest on site, giving better quality control. 

nVent Lenton offers 3 different levels of coupler system as detailed below;

• LENTON” by itself often refers to the baseline / original family of taper-threaded rebar coupler systems from nVent (originally ERICO / Lenton).
• “LENTON Plus” is a variant or improved version within the LENTON line, intended for certain bar size ranges with improved fracture behavior.
• “LENTON Ultimate” is their higher-performance, more advanced coupler system using friction forging for attaching the coupler to the rebar, offering greater tolerances and performance. 

nVent Lenton also offer a remedial coupler solution – called nVent Lenton Connect

nVent LENTON Connect is a shear bolt coupler for the connection of reinforcement bars from 12mm to 32mm. Requires no special bar end preparation.

It is ideal for new construction, repair or retrofit applications.