SmartKey+ Collaboration

15 April 2015

SFC is pleased to announce we have been shortlisted as finalists for Halma plc’s Innovation Awards 2015. The project involved the collaboration between Smith Flow Control and Serv Trayvou in the development of SmartKey+, SFC’s new key management system that offers full traceability of key movement. The winner will be revealed at Halma HITE, Barcelona in May, which is an event that includes the Director Teams from all of Halma’s subsidiaries.

SmartKey+ Collaboration

Smith Flow Control celebrates 30th anniversary

10 April 2015

Smith Flow Control, mechanical valve interlock specilaists turns 30Valve interlocking specialist Smith Flow Control has celebrated 30 years of protecting people and assets at process plants worldwide.

Smith Flow Control was formed on 10 April 1985 by Malcolm Brown, Mike Smith and current Managing Director Mike D’Anzieri. The company now employs a total of 78 staff, mostly at its headquarters in Witham, Essex, but also in regional offices in Australia, China, India, the Netherlands and the United States.

Smith Flow Control introduced the coded card linear key concept to interlocking technology, and the concept has achieved widespread adoption in today’s industry. The firm’s product range has evolved considerably over the past 30 years to include a full suite of mechanical interlocks for wide ranging applications, valve management products and more recently, diversifying into the field of electronics.

Adrian Brown, SFC’s R&D Manager states ‘Our product range is evolving continuously and we pride ourselves in delivering customised solutions required by our clients. For the last three decades, SFC has offered a precise and personal service. We appreciate and value the importance of delivering suitable products to our customers, therefore adapting our product range to meet individual needs and requirements. The continuous quest for new product development and on-going product improvement requires a high level of energy and commitment that can come only from a collective dedication to being the best in the industry.’

Mike D’Anzieri adds, ‘The business continues to grow at a tremendously fast pace. I am incredibly proud of our achievements to date and I am especially grateful to all the employees for helping to make it happen.’

Smith Flow Control Hires Regional Sales Manager for India

18 March 2015

Sunil Verma joins Smith Flow Controlas Regional Sales Manager for India. Mr.Verma’s appointment supports SFC’s strategic investment in the region, with Sunil responsible for driving sales and marketing efforts. We have been pleased to host Sunil over the past two weeks in our UK Head Office, where he has received a full spectrum of training. Sunil we be an absolute asset to the team and in developing our strategy in India; with extensive experience in the valve industry and a wealth of expertise, we know he will be fantastic!

Sunil Verma, the new Regional Sales Manager will be based out of Delhi and can be contacted on
T: +91 98106 04307or E-mail:s.verma@smithflowcontrol.com

Sunil Verma Regional Sales Manager

Human Factors Engineering – Improving Performance in Valve Operations

28 August 2014

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Major oil and gas operating companies are progressively adopting the Human Factors Engineering Discipline (HFE) to ensure quality, safety and fit for purpose of equipment and facilities.  Human factors are all those considerations that enhance or improve human performance in the workplace and negate the possibility of human error.

The Health and Safety Executive’s (HSE) Accident Prevention Advisory Unit and others have shown that human error is a major contributor in 90% of accidents, 70% of which could have been prevented by management action.  An incident may involve the failure of a number of additional barriers and controls, which may include poor organisational decisions, in order for human error to have serious consequences (Human Factors Engineering in Projects, International Association of Oil and Gas Producers, August 2011).

Five factors have been identified that contribute to human performance: People, nature of work, work organisation and structure, equipment and the work environment.  The aims of HFE seek to reduce the risk to health of personnel and the environment, to eliminate or reduce the consequences of human error, to increase efficiency and productivity and improve user acceptance of new facilities (HFE in projects, August 2011). This article will focus mainly on human performance in valve operations.

The UK Health and Safety at Work Act (1974) places responsibilities on people who design, manufacture or supply equip­ment for use at work to ensure as far as is reasonably possible that it is safe.  Internationally, there is a visible shift of emphasis in safety legislation from the sole reliance of pre­scriptive regulations to a risk man­agement (goal setting) approach.  Responsibility should sit with the company to put in place company-specific standards and specifications to ensure that risks and hazards are minimised.  In fact, most of the major operating companies now have their own HFE technical standards.

This ‘risk management’ approach can be applied to ensure processes are introduced that reduce the possibility of design-induced risks to health, personnel, process safety or environmental performance while at the same time, ensuring efficiency and productivity prevails. This approach places responsibility on owners and operators to adopt ‘best available’ technology and methodology to ensure safety.

HFE Valve Considerations

General HFE principles suggest undertaking a valve analysis to rank valves according to their importance and frequency of use. Valves should be selected, located and labelled so that they can be operated, maintained and inspected with accessibility appropriate to their service, without exposing operators to risk of injury.  Equally, consideration should be made to accessibility and operational risk in established plants so that any possible on-going safety issues are alleviated.

The HFE design requirements with regard to location and orientation are mainly applicable to manual valves but also apply to motorised, mobile actuator or otherwise remotely operated valves if their expected criticality is such that they may need rapid or frequent manual intervention either to override or manually operate them, or to visually check their status.

Considerations should include the task involved – what are operators expected to do? Can they access the valve with ease, or is it located out of reach or squeezed between other equipment that could prove risky to reach and operate?

Does the valve require high levels of torque and does the opening and closing of the valve need excessive force, using prolonged repetitive motions with a static or awkward posture? Are all members of the workforce capable of undertaking this task? And does the weather (extreme heat or cold) or other environmental conditions play a role in how easily the valve can be opened/closed?

Portable Valve Actuator Case Study

At a petrochemical plant in Singapore, operators were straining themselves to open and close large valves that were not actuated. These valves were 14” 1500# gear operated gate valves and required two operators to manually open the valve; this took 20 minutes on average. HFE considerations here involved personnel safety and efficiency. The valve operation was physically demanding, labour intensive, and took a long time to complete.

To support plant operations, Smith Flow Control’s local Distributor, Triple-Max Engineering Pte, supplied EasiDrive – a portable valve actuator. Such a system is ideal for the operation of valves that require a high number of turns, or are difficult to operate because of high torque or in circumstances where climatic conditions can seriously impair operator functionality and effectiveness. One operator can open/close multiple valves with a single tool while reducing fatigue and injury risk. It complements the needs of an increasingly diverse workforce and can be used regardless of operator strength.

EasiDrive Systems


EasiDrive greatly improved productivity and performance at the petrochemical site.  It provided users with complete control, ensuring the required torque was applied at all times and operators were kept safe, even when under pressure to respond quickly. Only one operator was needed to operate the large gate valves and the time taken was reduced from an average of twenty minutes to five. The risk of injury was alleviated and it satisfied the general aims of HFE identified by the International Association of Oil & Gas Producers.

Remote Valve Operators – Addressing Valve Accessibility

Even with non-critical valves, permanent accessibility is desirable. Operators may be required to operate hard to reach valves or faced with restricted access conditions, due to other process equipment and pipes, which can in turn make the valve hard to operate. In order to overcome such issues, dangerous or inaccessible valves can be operated through the use of a remote valve operator, which is a cost-effective safety tool for companies to remotely control valve operations from a safe distance.

Smith Flow Control’s FlexiDrive allows the user to locate a point of operation at a preferred vantage point. This could be a safe area, or in a better, ergonomic position, discouraging potentially unsafe behaviour like climbing on valves to gain access.  FlexiDrive removes problems associated with confined entry points and can also be submerged into flooded pits.  Its linear drive cable delivers rotary torque at distances up to 30 plus metres and can pass through walls and floors.  Major operating companies such as BP, Exxon, Chevron and Shell have all used FlexiDrive to overcome issues of accessibility.

Addressing the need for remote valve operation


Such a remote drive system fulfils the guidelines of HFE by eliminating potentially difficult design issues in a cost-effective way. It overcomes obstructions to access and can increase operator safety from valves in potentially hazardous areas.

FlexiDrive for oil and gas pipelines


Even where 90% of accidents are thought to be caused by human error, some consideration should be made to the suitability of the working environment. Incidents may occur as a consequence, whether direct or indirect, of a failure to properly consider the environment as it relates to human performance. As a result, human error can be ‘design-induced’.

Design features should support critical human tasks, especially in potentially dangerous valve operations. The aims of HFE are to reduce risk to personal health and process safety and reduce the likelihood of errors occurring.  The adoption of HFE best practice ensures that adequate controls are in place to reduce the possibility of injury and potential for human error.

Smith Flow Control’s drive systems are an example of a cost effective solution, complimentary to the Human Factors Engineering discipline.  The drive systems alleviate possible safety concerns and can be used across an array of industries to support safe and successful valve operations.


Reference: Human Factors Engineering in Projects, International Association of Oil and Gas Producers, August 2011



We find our interlocks in the strangest places!

28 April 2014

Strange Interlock Places
Interesting use of our interlocks…Outside a Petronas plant in Kerteh, Malaysia!!!

Site Surveys

31 January 2014

Our Site Service Engineers are available to help obtain detailed ‘top-work’ dimensions.  Top-works are a crucial component of the design process, which enables our manufacturing team to provide an interlock solution, which is fit for purpose and is right first time, therefore great cost and time saving advantages.