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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
INEOS facility in Belgium

Protected: How INEOS ensures safety in industrial powder mixing

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  • 9 September 2024
  • Customer stories, Safe valve operation
Valve interlock installed on mobile pig launcher

Protected: How Sasol ensures safe valve operations on mobile pigging systems

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  • 8 September 2024
  • Safe valve operation
Valve interlock inspection

Why specialized engineering support is essential for installing and maintaining valve interlocks

Valve interlocks are critical to ensuring safe and efficient operations. They are designed to prevent hazardous situations by ensuring that operations follow the correct sequence. Given their importance, installing and... read more →
  • 27 August 2024
  • Safe valve operation
Operators on-site of a process industry facility

Sofis turnaround support prevents incidents and exceeding downtime by timely identifying and solving issues

A special material solutions provider based in The Netherlands recently decided to employ Sofis engineers, to physically inspect all valve interlocks prior to a planned maintenance shutdown. Their intention: identifying... read more →
  • 10 July 2024
  • News, Safe valve operation

How captive key systems contribute to process safety in the hydrogen industry

The captive key concept can significantly contribute to the hydrogen industry in various ways. Captive key systems ensure that operators adhere to a safe sequence of operation.They are permanently mounted... read more →
  • 25 June 2024
  • Safe valve operation

Sofis enhances process safety on South Pailin Central Processing Platform (CTEP) with valve interlocking systems

Recently, Sofis provided valve interlocking systems to guarantee safe manual valve operations on mercury recovery applications and valve changeover lines. The installation of valve interlocking systems is part of the... read more →
  • 24 June 2024
  • Customer stories, News, Safe valve operation
CO2 protection system for fire extinguisher

Wholesaler of organic foods ensures employee safety from CO2 asphyxiation

A leading wholesaler of organic foods, natural personal care products, and sustainable non-food items, took significant steps to enhance the safety of their employees working in their automated sorting center.... read more →
  • 11 June 2024
  • Customer stories, Safe valve operation
Compromised key management system

The impact of captive key management on process safety

Valve interlocks, or captive keys, employ locks that prevent the movement of valves and unique keys. Keys will only be released according to a desired valve operating sequence, preventing operators... read more →
  • 22 May 2024
  • Safe valve operation
Sofis safety solutions for the chemical industry

Safety solutions for the chemical industry

Chemical plants manufacture or process chemicals using specialized equipment, units, and technology in the manufacturing process. Other kinds of plants, such as polymer, pharmaceutical, food, and some beverage production facilities,... read more →
  • 25 January 2024
  • Fast manual valve operation, Safe valve operation, Valve position monitoring
Valve interlocks

Valve interlock applications

Accidents in the process industry are mostly related to procedures that do not occur frequently and at the same time can have catastrophic results when performed incorrectly. 75% of the accidents... read more →
  • 31 October 2023
  • 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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