Skip to content

LULYLOK™

Self-locking B-Nut 

WORLD-CLASS LOCKING SYSTEM: SECURING GAS, FLUID, AND PNEUMATIC CONNECTIONS.

patented-technology

DESCRIPTION

LULYLOK™ is a technology meticulously designed and patented by JPB Système as part of our mission to deliver innovative solutions for securing fluid and gas connections in the industry.

LULYLOK™ is a B-nut for fittings equipped with a self-locking mechanism. This patented feature prevents tension loosening under harsh conditions such as vibrations, temperature variations, and exposure to corrosive agents.

LULYLOK™ can be easily assembled on various types of fittings and operates without the need for a lock-wire or complex positive locking mechanisms. As a result, LULYLOK™ reduces both initial installation and maintenance times while eliminating the risk for Foreign Object Debris (FOD).

BENEFITS

safety
Safe
The self-locking mechanism prevents tension-induced loosening.
savings
Save time
The initial installation and maintenance processes are five times faster than standard B-nut that use lock-wire.
save-weight
Save weight
On average, LULYLOK™ is 13% lighter than standard B-nuts for flared design.
fod
No FOD
Eliminates the risk of Foreign Object Debris (FOD) generated by the lock-wire.
no-process-modification
No process modification
Assembled and torqued using the same process and tool as a standard B-nut.
dimensions
Dimensions
LULYLOK™ maintains the same overall dimensions as standard B-nut.
lulylok-containers

"Safety, watertightness and rapid maintenance are the strong points that have led to the certification of the Lulylok on aircraft engines."

Machines Production October 10th, 2020

HOW IT WORKS

INSERT

INSERT

TURN

TURN

SECURE

SECURE

Dive into the effortless installation of our Lulylok™ with our cutting-edge locking system—experience simplicity in action

TECHNICAL FEATURES

SIZES

  • From -04 to -16 // Flared or flareless
  • Other sizes on demand 

MATERIAL & TEMPERATURE

  • Stainless Steel 347 (AMS5646) up to 450°F (230°C).
  • Inconel 625 (AMS5666) up to 900°F (480°C).
  • Other material on demand

TYPE

  •  B-Nut for fittings with shoulder

  •  B-Nut for fittings with thrust wire

     

lulyloks

Our solutions can be custom-made!