Onis Line Blinds physically spread the pipe. All Onis Line Blinds moving parts are outside of the process, and there is no flow reduction in the pipe and no room for product build-up. The bodies of Onis Line Blinds are made from solid forgings and are not welded flanges. Onis offers a one year warranty (additional upon request). Installation support and on-site training for operators and maintenance personnel are also available.
Concept
Quick-Action Line Blind Concept
For all ONIS Quick-Action Line Blinds, the flange spreading operation is performed under the same conditions as for spectacle blind, slip blind and Figure-8 blind flange.
The pipe must be depressurized before starting the blinding operation.
Two forged half-bodies are spread thanks to a lever (or gearbox) in order to allow the displacement of a slide gate designed with a full-bore and a blind position.
Once the slide gate is in the desired position, the lever (or gearbox) is operated the opposite way to clamp the two-half bodies.
TRADITIONAL BLINDING
Blinding time :
2 hours up to 10 hours
SIGNIFICANT
MANPOWER AND TOOLS
(cranes, heavytools, wrenches…)
ONIS LINE BLIND
Easy & fast operation
100% positive isolation of the line between the upstream and the downstream.
Blinding time
1” to 8” 1 minutes
10” to 24” 5 minutes
26” to 50” 15 minutes
ONE PERSON. ZERO TOOLS
Mechanical concept
Roll over the Line Blind to highlight the description - Model PLB
Roll over the Line Blind to highlight the description - Model PLR