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Sofis valve operation Sofis valve operation
  • Home
  • Products
    • Smith interlocks
    • Netherlocks interlocks
    • Ellis interlocks
    • Key Management System
    • EasiDrive portable actuator
    • Power Wrench portable actuator
    • FlexiDrive remote operator
    • VPI position indicator
    • SiLoC silo loading & unloading
  • Services
  • Solutions
    • Enforce safe valve operation
    • Monitor manual valve positions
    • Operate manual valves quickly
    • Operate manual valves remotely
    • Ensure integrity of critical safety systems
    • Ensure operational efficiency
    • Mitigate effects of human error
  • Applications
  • Industries
  • Customer stories
  • About us
    • Sustainability
    • Certification
    • Sofis: The safest choice
    • Our heritage
    • Vacancies
    • Internships
  • News
    • Download brochures & application notes
    • Sofis Connect newsletter
    • View product videos
  • Contact
Valve interlocks on quarter turn valves

How to prevent accidents on start-ups and shut-downs?

The proposed changes to the BSEE’s SEMS (Safety and Environmental Management System) summed up in the new SEMS II rule have been a major topic of discussion in the US... read more →
  • 21 December 2016
  • Safe valve operation
Installation of a valve interlock on a manual valve

Valve interlock installation training saves time

As part of the Sofis installation and engineering support programs, Sofis offers various practical training courses. These courses enable valve technicians to train basic skills on installing, setting and troubleshooting valve interlocks.... read more →
  • 21 December 2016
  • Safe valve operation
Ket cabinet for valve interlocks

New key management solution for oil and gas company

For a multinational oil and gas company in Norway, Sofis recently designed a key management solution. The design includes an integrated PC, software and touch screen and allows for easy... read more →
  • 21 December 2016
  • News, Safe valve operation
Valve interlock installed on a manual valve

Local approach to valve interlocks maintenance increases process uptime

Sofis agent in South Africa, Zonke Engineering Ltd, adopts a local approach to service support, in line with the Sofis strategy to increase its local presence. Within this approach, one of their... read more →
  • 20 December 2016
  • News, Safe valve operation
Operators at Shin-Etsu Rotterdam use valve interlocks

Shin-Etsu replaces valve lockout devices with Netherlocks interlocks

As part of an overhaul operation of one of its plants, Dutch-based Shin-Etsu PVC, part of Shin-Etsu Chemical Ltd., recently replaced all refrigeration compressors using freon with compressors using propylene... read more →
  • 11 December 2016
  • Customer stories, News, Safe valve operation
Custom build valve operating panel for enhanced safety and efficiency

Sofis builds valve operating panel to enhance safety and efficiency

Oil & gas company Eni Norge approached valve operations specialist Sofis to help simplify its valve processes on the Goliat Field oilfield. Sofis provided a solution by developing a custom-built valve... read more →
  • 28 November 2016
  • News, Safe valve operation
Valve interlocks on pressure safety valves

Valve interlocks eliminate human error in valve operations

Every year, agencies like CBS, OSHA and EPA investigate the biggest accidents that occur in the oil, gas and downstream sector, searching for root causes. There never seems to be... read more →
  • 26 November 2016
  • Safe valve operation
Valve interlocks secure safe pigging operations

Custom pigging valve interlock system for Nord Stream

As part of the Nord Stream pipeline project, Sofis valve operation has been chosen to provide an electro-mechanical control cabinet in combination with an interlocking system for the pigging process. A... read more →
  • 19 October 2016
  • Customer stories, News, Safe valve operation
Key interlocks for safe pigging operations

Key interlocks for pipeline safety

Pipeline operations in the oil and gas industry are safe if carried out correctly but can have catastrophic consequences if performed incorrectly, particularly if high temperature, high pressure or toxic/flammable... read more →
  • 10 October 2016
  • Safe valve operation
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About us

Sofis is a manufacturer of valve operation systems such as mechanical valve interlocks, portable actuators and valve position indicators. We are the world’s largest interlock manufacturer, providing bespoke design solutions that protect people and property throughout the world. We create smart valve solutions that improve process and operator safety to protect people and the planet.

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