The Innovation Centre Sci-Tech Daresbury Keckwick Lane, Daresbury, Cheshire WA4 4FS

Chester-Simplex Limited
Specialist Engineering Services

 Innovative, Engineering, Management and Product Solutions

Energy from Waste,


Oil/Gas, Petrochemicals, Chemicals, Food

Chester-simplex limited

Our Services

CSL offer Engineering and project management services specialising in innovative Product, Engineering and Project Management solutions. 

We are fully certified to ISO 9001-2008 for the provision of professional design, engineering and project management services and supply of nuclear containers. 

  • Project, Programme & Engineering Management
  • Multi-Discipline Engineering Services
  • Waste Management and Transport Products/Packages


CSL offer extensive experience and expertise in the following sectors:

     Energy from Waste, 
     Oil & Gas, 
     Manufacturing engineering services

About Us

CSL was originally founded in 2012 to engineer and supply Ductile Cast Iron Containers to the Nuclear Industry for the transport and long term storage of Intermediate Level Wastes. Along with our partners, and through an established supply chain CSL has extensive and specialist experience through whole Project Delivery Life Cycle including:

· Concept and Front End Design

· Engineering

· Manufacture

· Testing 

· Site delivery

· Operations Support

Engineering & Project Management Services

Holistic Approach


CSL has the capability to deliver tailored Programme, Project and Engineering Management solutions. Our solutions are targeted to the needs of each project or organisation in order to achieve specific objectives. We have the provision of services at all levels from ‘hands on delivery’, peer reviews, working within integrated teams or specific consultancy services. We pride ourselves on being able to provide extensive knowledge and experience in many industry sectors, through our own and partner capability. We are able to offer services including:

· Development & Maintenance of client & stakeholder relationships

· Identification and driving of Project key success factors

· Production and maintenance of project schedules and budgets

· Risk identification, ranking and management

· Procurement & Manufacture

· Contract Management


Engineering & Project Services

Concept & Feasibility Studies

Trials and testing to prove concepts

Process Plant Integration

Heat recovery & Energy Integration

Detail engineering for manufacture/construction

Decommissioning requirements & design solutions

Waste management strategy & routes

Packaging and storage of wastes

Testing and commissioning needs

Process Trouble shooting

Debottlenecking & Throughput Optimisation    

Nuclear Transport Package Design & Licencing

Process Engineering

Mechanical Engineering

Manufacturing Engineering

Electrical, Control & Instrumentation

Civil, Structural & Architectural

Finite Element/Stress Analysis

Hazop & Hazcon Facilitation

Concept/Detailed Engineering

Interfacing with regulators

Safety case integration into design

HAZOP Facilitation

ALARP requirements

BPM/BPEO Studies

Operational Support

Engineering & Safety Case Integration       

total delivery

We pride ourselves on being able to offer, across the whole project life cycle

  • Project Management Services
  • Multi-Disciplinary Engineering Services
  • Manufactured Products/Packages

This expansive capability allows clients to have complete confidence in our ability to deliver 

Innovative and pragmatic product, project and engineering solutions safely 'On Time' and 'To budget'


"Chester-Simplex provides cutting edge, innovative, high quality, cost effective solutions in a safety driven culture" 

Jas Singh 

(Managing Director)

Energy from waste


Chester-Simplex Limited (CSL) help support clients (Operators, EPC Contractors and Design Companies) to engineer and set to work Energy from Waste plant employing various gasification technologies for the processing of municipal wastes, generation of electricity using steam turbines.

CSL have been called in by blue chip companies to provide specialist expertise to help deliver difficult projects against immensely challenging timelines.

CSL provide flexible resources to either work with clients in their offices or from our conveniently located offices in The Innovation Center, Daresbury Warrington.

Please contact us to discuss how we can help your project. 

Functional Activities

Feasibility Studies

Process Systems Design

Process Simulation

Heat and Mass Balance

Process Descriptions

Control Philosophies

Basis of Designs

PFD and P&ID Development

Hazop reviews, support and close out

Energy recovery and integration

Preparation of Equipment Datasheets

Technical specifications

Hazardous Area Classification

DSEAR Assessments

Vendor Document Review

Design and Layout Reviews

Multi-disciplinary design leadership and integration

Construction support and plant walk downs

Commissioning & Performance Test schedules and Protocols

Plant commissioning and testing

Process trouble shooting and design optimisation

Power Plant Systems

Furnace Gasification and Syngas combustion Systems

Furnace Cooling

Thermal Oil and Water Grate cooling systems

Flue Gas Treatment System

Refractory curing methodologies

Ash system handling 

Boiler Systems specification and integration

Steam System Design

Feed water deaeration and treatment

Condensate management

Heat Recovery Systems

Chemical Dosing System

Blowdown Systems

Air Cooled Condenser specification and integration

CEMS specification and management

Steam turbine systems specification and integration

Waste water management

Diesel Oil support systems

Process Water Management

Compressed Air System

Drains System

CSL Nuclear containers

CSL containers (cylinders and boxes) are constructed of Ductile Cast Iron and are designed for the safe, effective containment of Nuclear ILW for transport and storage. Our containers will be supplied to Magnox through the recently awarded framework (£200million over 6 years). Together with our key subcontractors CSL are able to provide bespoke and specialist engineered solutions manufactured to the highest quality standards at a cost effective price. We have international supply chain and logistics established to service requirements all round the world. Please feel free to get in touch, we would be more than happy to help with any enquires.

Own in-house developed products include:

o 500 litre capacity Ductile Cast Iron, Cylindrical, ‘Drum’

o 3000 litre capacity Ductile Cast Iron, Cuboidal, ‘Box’ 

· Self Shielding

· Incorporate innovative design features for minimum/zero maintenance

· Both designs are compliant with IAEA transport regulations

· Designed for the safe, effective containment of Nuclear ILW for transport and long term storage

· Currently developing variants for acidic wastes

· Currently developing alternate containers, including those of concrete construction

CSL are able to supply bespoke products and engineered solutions for specific project and client needs.

Key Information

  • Unique Lidding technology providing significant advantages in the most onerous impact scenarios
  • Unique sealing arrangments that are not affected by ILW radiation levels
  • Sealed for life - 500 year design life (including primary seals)
  • Facility to test seals prior to movement without removal of lids or disturbance of primary seals faces
  • Optional facilities to condition wastes once loaded
  • HEPA filter options to permit use of containers as vented packages
  • Optional pressure monitoring and depressuring systems when containers used as sealed packages

Contact Us

Send Message

Questions & Estimates

Please reach out at your convenience so we  can discuss your project.  

Chester Simplex

Tel: 01925 607260 Mobile: 07753 463 527 Email: