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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
Darren Trowsdale

Building expertise from the ground up: Darren’s road to technical sales at Sofis

What started as a detour from an IT career became a defining journey in valve interlocking. Darren Trowsdale’s 23 years at Sofis reflect a legacy of loyalty, technical growth, and... read more →
  • 10 June 2025
  • Company, News
Joe Hischar

Celebrating 40 years of safer valve operations: How Teksal and Sofis turned partnership into legacy

This year marks 40 years of linear key valve interlocking, a milestone that underscores the power of long-term partnerships built on safety, trust, and innovation. Teksal and Sofis have been... read more →
  • 19 May 2025
  • Company, News
Ian Binney

The evolution of valve interlocks: A conversation with Ian Binney, Key Account Manager EPC projects

Ian Binney has been a valve interlock specialist since 1982, when he joined Castell. With decades of experience, he has witnessed firsthand the evolution of valve interlocks and their impact... read more →
  • 19 May 2025
  • Company, News
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
Smith valve interlocks

Sofis celebrates 40 years of linear key valve interlocking – Shaping the global industry standard

April 10, 2025, marks the 40th anniversary of the linear coded key valve interlocking concept, introduced by Smith Flow Control in 1985. The Smith Flow Control valve interlock revolutionized the... read more →
  • 8 April 2025
  • Company, News

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
Maersk container ship

Maersk successfully addresses crucial challenges in operational processes with portable actuator

To address a crucial challenge in their operations, Maersk invested in a solution to significantly improve efficiency. As one of the world's largest container shipping companies, A.P. Moller - Maersk... read more →
  • 8 October 2024
  • Customer stories, Fast manual valve operation, News
Umit Agca

Introducing Umit Agca: Our new Sales Manager Europe

We are excited to announce that Umit Agca has recently taken on the role of Sales Manager Europe at Sofis. Umit’s journey with Sofis began in 2019 as a Project... read more →
  • 1 October 2024
  • Company, News
Remote valve operator for hard to reach valves

How a Spanish refinery prioritizes operator safety in hazardous, confined spaces

In many industrial operations, discharge valves for tanks are located in areas that pose significant safety hazards. At a refinery in Spain, discharge valves were installed in a channel pit... read more →
  • 5 September 2024
  • Customer stories, News, Remote manual valve operation
FlexiDrive remote valve operator for block valve

Efficiently accessing challenging valves: How a Brazilian chemical facility overcame obstacles on a critical thermal oil line

A Brazilian site for a global leader in specialty chemicals and paints had to find a solution for operating difficult-to-access 4" block valves in a thermal oil line, used in... read more →
  • 27 August 2024
  • Company, Customer stories, News, Remote manual 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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