ONIS develops and manufactures quick-closure and positive isolation devices for industrial pipelines from 1" to 52".

Onis

France (headquarters)New on Amplifa

1979Founded by Edmond Onis

11–50Employees

> 12,000Devices installed worldwide

> 450Plants equipped with ONIS equipment

1"–52", 420 barComponent sizes and maximum pressure

About ONIS

ONIS is a manufacturer of mechanical devices for the safe and fast opening of industrial valves and process pipelines, founded in 1979 by Edmond Onis. The product range includes the Quick Action Line Blind (QLB) for positive pipe isolation, the Double Block Bleed and Blind (D3B), the Quick Rupture Disc Changer (QDC) and the Quick Filter Changer (QFC). All devices are manufactured to order, tested and calibrated in the company's own plant, and enable operators to blind pipelines up to 52" without tools, at pressures up to 420 bar and temperatures from -120 °C to +650 °C (up to Class #5500). According to the company, more than 12,000 devices have been installed in over 450 plants worldwide. Customers come from the petrochemical, chemical, gas transport and gas production, power plant, steel mill, pharmaceutical, water treatment and food industries.

Site: France (headquarters)
Processes: Quick Action Line Blind (QLB) – manufacture of positive pipeline isolation devices, Double Block Bleed and Blind (D3B), Quick Rupture Disc Changer (QDC), Quick Filter Changer (QFC), Manufacture of mechanical pipe-opening devices from 1'' to 52'', max. 420 bar, -120°C to +650°C (up, Testing and calibration of products in the company's own workshop according to technical, Refurbishment program (overhaul/repair/retrofit of existing ONIS devices), Training center / operator training with a 2-year certificate
Materials: Quick Action Line Blind, Double Block Bleed and Blind, Quick Rupture Disc Changer, Quick Filter Changer
Certificates: ISO 9001:2015, PED 2014/68/EU, TR CU 32, ISO 9001:2015 (SGS), PED 2014/68/EU (SGS TUV SAAR), IATF 16949, EN 9100
Founded: 1979
Employees: 11–50
Industries: Petrochemicals, Olefins, Gas transport, Gas production, Storage and transport, Chemicals

01
Engineering and custom design
02
Manufacturing to order
03
Testing and calibration in the company's own plant
04
Installation and commissioning including training
05
Service: on-site diagnostics, spare parts, refurbishment

Products & Processes

QLB

Quick Action Line Blind

Flagship product for complete positive isolation of pipelines within minutes, operable by one person without tools.

D3B

Double Block Bleed and Blind

Extended version of the QLB, offering complete positive isolation in a single device with a structured operating sequence.

QDC

Quick Rupture Disc Changer

Enables tool-free replacement of a burst rupture disc within minutes.

QFC

Quick Filter Changer

Tool-free, fast replacement of cone filters to protect pumps, compressors and control valves.

Locations

Plant France

Manufacturing, testing and calibration

Part weight / size: Pipelines 1"–52"
Lot size: One-off production to order
Materials: Steel (pressure-bearing housings, not further specified)

Testing and calibration workshop

Inside the production

Comparison between traditional blinding (e.g. figure-8) and an Onis Line Blind

Industries

PetrochemicalsOlefinsGas transportGas productionStorage and transportChemicalsSteel millsPharmaceuticalsEnergy/power plantsWater treatmentFood industryMiningFertilizers/mineral fertilizersPetrochemicals (mid-/downstream)

Processes & technical limits

Processes	Tolerance	Max. part	Weight	Lot size	Materials
Quick Action Line Blind (QLB) – manufacture of positive pipeline isolation devicesEngineering	–	–	–	–	–
Double Block Bleed and Blind (D3B)Engineering	–	–	–	–	–
Quick Rupture Disc Changer (QDC)Engineering	–	–	–	–	–
Quick Filter Changer (QFC)Engineering	–	–	–	–	–
Manufacture of mechanical pipe-opening devices from 1'' to 52'', max. 420 bar, -120°C to +650°C (upEngineering	–	–	–	–	–
Testing and calibration of products in the company's own workshop according to technicalTesting	–	–	–	–	–
Refurbishment program (overhaul/repair/retrofit of existing ONIS devices)Assembly	–	–	–	–	–

Additional services

Training center / operator training with a 2-year certificateFree on-site diagnosticsRepairs, retrofits and upgrade studies (revamping, debottlenecking)Supply of gaskets and original spare partsONIS CARE: 24/7 on-site emergency service and annual diagnosticsRefurbishment program to extend service life18-month full warrantyCustom manufacturing, testing and calibration at the plant

Quality & Certifications

The quality management system is certified to ISO 9001:2015 (SGS) and PED 2014/68/EU (SGS TUV SAAR); there is also a certification to TR CU 32. All devices are tested and calibrated in the company's own plant; flange dimensions are individually designed according to ASME-VIII calculations.

Evidence	Plant France
ISO 9001:2015 (SGS)
PED 2014/68/EU (SGS TUV SAAR)
TR CU 32
IATF 16949
EN 9100

History

1979
Founded by Edmond Onis; development of the first Quick Action Line Blind for a petrochemical company in Berre l'Étang, France
Over 40 years of innovation, more than 12,000 devices installed in over 450 plants worldwide