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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
Cruise ship

Guaranteeing safe and sustainable Hydrogen powered shipping

Hydrogen is a clean, sustainable alternative to traditional fossil fuels. However, adopting hydrogen as a marine fuel involves overcoming significant technological and regulatory hurdles. The sHYpS project addresses this challenge... read more →
  • 7 May 2025
  • Customer stories, News, Safe valve operation
LNG tanker unloading using unloading arm

Securing LNG operations: How valve interlocking systems are the last line of defense

The LNG industry operates in a high-risk environment where safety, reliability, and precision are paramount. Advanced valve interlocking solutions prevent operational errors, enforce correct valve operation sequences, and integrate seamlessly... read more →
  • 18 March 2025
  • Safe valve operation
Water treatment plant

Enhancing safety in water treatment by preventing Oxalic Acid contamination

The global supply of clean water is facing unprecedented pressure due to industrialization, growing demand, and increasing biological and chemical contamination. This strain presents a serious threat to the environment,... read more →
  • 2 December 2024
  • Customer stories, Safe valve operation

Enhancing safety at liquid hydrogen loading stations through collaborative innovation

Sofis recently partnered with a leading customer in the Botlek area of Rotterdam, The Netherlands, to tackle a critical safety challenge at their liquid hydrogen loading stations. The objective was... read more →
  • 25 November 2024
  • Customer stories, News, Safe valve operation
Valve interlocks installed in an aluminum process facility

Enhancing process safety with valve interlocks: avoiding incidents in the alumina industry

In process industries, the consequences of over-pressurization incidents can be catastrophic. A notable example in the oil and gas industry is the Piper Alpha disaster, where incorrect handling of pressure... read more →
  • 29 October 2024
  • Customer stories, Safe valve operation
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
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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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