Plugs Sockets Connectors Decontactors | Distributed in UK by Thorne & Derrick
Marechal plugs and sockets are waterproof, designed to withstand airborne and permanent humidity found within the food and beverage industry.
In the food and beverage industry electrical safety is critical where plant and machinery is subject to daily deep cleaning, high pressure water spray and steam cleaning.
Electrical power plugs and installations must be protected from water and dust ingress, impact shock and resist microbiological contamination in hazardous area applications.
Decontactor = Plug + Socket + Motor Load Make/Break Switch
Marechal plugs & sockets can be disconnected under full load for planned maintenance or rapid change out of equipment during plant shutdowns without need for separate isolators and associated hard-wiring.
The decontactor from Marechal is supplied with an integral load-break switch offering technical benefits including quality contact, safe disconnection under load, watertight seal (up to IP68) and power supply reliability.
Marechal Plugs & Sockets For The Food & Beverage IndustryMarechal plugs and sockets are designed to suit all food and beverage industry applications and are fitted with a built-in switching function called a Decontactor which allows the plug and socket to be connected and disconnected with ease, under load, and without risk of electrocution to workers.
Users can quickly and simply connect and disconnect Marechal plugs and sockets either from the wall-mounted electrical outlets or cable coupler to machinery such as conveyors, control stations, packaging units and silos.
Marechal DSN plugs and sockets are specified throughout the food processing and production industry for low voltage power distribution with current ratings 20A-63A.
DSN plugs provide IP66/67/69 ingress protection for resistance to intensive and deep cleaning associated with pressure power washing of food hygiene areas, including CIP (Cleaning in Place).
Marechal DSN plug and sockets provide unequalled strength over time and and have an impact resistant GRP casing providing IK08 shock resistance and protection against mechanical impacts up to 5 joules, guaranteeing robust, fast and safe operation during maintenance work – compliant with the IEC EN 60309-1 standard and the European Low Voltage Directive.
DSN range of plugs and sockets are watertight, robust, resistant to chemicals and steam cleaning – ideal for all your food plant safety needs, allowing your production facilities to be as efficient as possible without risk of unplanned downtime caused by sub-standard specification plugs and sockets.
Marechal plugs and sockets are manufactured from highest quality advanced materials with excellent resistance to aggressive chemicals, cleaning solutions, saline solutions, diluted acids, hydrocarbons, mineral oils and alcoholic substances for use in highly corrosive atmospheres.
Butt pin contacts enable the Marechal DSN plug to be safely disconnected on full load – no requirements for separate local isolators.
For humid & corrosive environments – steam cleaning
Silver-nickel butt contacts resist corrosion even after years of operation and the automatic socket seal resists steam cleaning, water jetting and corrosive chemicals and detergents.
Simple operation in fatty or humid environments
Even if wearing protective gloves the operator can simply press the release button to eject the plug and a quarter turn removes the now “dead” plug from its socket. For extra safety in-line connections are also switched off.
Daily shutdown and machine mobility
Acts as local isolation, padlocking available ON/OFF.
Robust requirements
The glassfibre-reinforced (GRP) casings protect against mechanical damage up to 5 joules (IK08) and have an operating temperature of -40°C and +60°C.
Marechal also manufacture plugs and sockets for explosive atmospheres in accordance with ATEX Directive 2014/34/EU and used in Zones 1 and 2 (gas) and Zone 21 and Zone 22 (dust) including the DXN ATEX plug and sockets.
Eckes Granini, France
Marechal plugs and sockets for manufacturing of fruit juices.
Marechal’s DSN plugs and sockets provided Eckes Granini with a robust solution for their production plant which manufactures fruit juice brands including Joker, Rea and Granini.
Due to the constant presence of moisture from the production process and high pressure cleaning, the plugs and sockets needed to be water and dust tight and protected against corrosion from chemical products and detergents, temperature variations and shocks.
Lactalis, France
Marechal plugs and sockets for dairy industry
Marechal supplied a flexible and mobile solution allowing pump maintenance and overhaul to be carried out every 6 weeks and the keying positions of the DSN3 allowed for the right connection of plugs and sockets for cleaning stations.
Findus, France
Alcass, Italy
Marechal plugs and sockets for meat packaging and frozen meals
Legumex, Belgium
Marechal plugs and sockets for fresh vegetable wholesaler
Molkerei Alois Muller GMBH & Co. KG, Germany
Stolle Machinery, United States and Brazil
Marechal plugs and sockets for tinned food production
Marechal DSN Plugs – Compact & Watertight Decontactor
Plugs | Sockets | Decontactors | Connectors | ATEX IECEx | Explosion Proof
Thorne & Derrick are leaders in the development and distribution of Product Innovations that deliver significant improvements to clients plant, people and operational safety in the explosive atmosphere industries.
Your proactive problem solvers experienced in succession planning for the replacement of obsolete, non-conformant and legacy equipment in hazardous areas.
Your first-choice provider of innovative and competitive solutions to ensure ATEX & IECEx Compliance for Hazardous Area Electrical, HVAC & Process Instrumentation Equipment to UK and international projects.
Control Panels | Plugs | Isolators | Enclosures & Junction Boxes | Lighting | Control Stations | Motor Starters | Heat Trace | Gas Detection | Flame Detection | Process Instrumentation | Process Heating | Ventilation Fans | Security Access Control
Competitive Prices | Extensive Stocks | Technical Support | Express Delivery
Hazardous Area (ATEX Certified) Temperature & Humidity Sensors – Rotronic HygroFlex5-EX
Rotronic have announced the introduction of a new series of Intrinsically Safe Sensors and Measurement Transmitters, suitable for installation in hazardous area locations where there is a risk of explosion due to the presence of explosive dusts or gases in the environment – this includes Zone 1 which is common to the oil, gas and petrochemical industries.
For safe area, non-ATEX certified locations in the offshore industry aluminium housed temperature and humidity measurement transmitters are available, please visit Rotronic Hygroflex 7.
Rotronic humidity and temperature sensors were initially developed for the food and beverage, pharmaceutical, biotechnology, grain, sugar, petrochemical, oil and gas industries.
Zone 1 and Zone 21 ATEX certified Rotronic sensors and instruments are suitable for hazardous area industries where potentially explosive atmospheres preclude the safe use of uncertified equipment.
Rotronic HygroFlex5-EX is available with a Zone 21 certified transmitter for potentially explosive dust atmospheres in the pharmaceutical and food/beverage industry.
Dust Explosion & Fire Caused By Sugar Dust – Imperial Sugar Refinery At Port Wentworth GA USA. US Chemical Safety & Hazard Investigation Board.
This is a true story.
The floors of the Imperial Sugar Company’s plant buckled and the walls were blasted out.
The damage caused the electricity to be cut off from most of the plant, making escape and fire suppression difficult. The fire raged for hours.
By morning, the full extent of the devastation was clear. Thirteen people dead and 40 injured. The plant, which is the largest sugar refinery in the United States, was completely destroyed.
Investigators on the site quickly discovered the cause of the wreckage and the source of the explosion: sugar.
As raw sugar is refined and ground into ever smaller particles the potential explosion risk escalates as the total surface area prone to chemical reaction increases – as the surface area increases, the number of collisions between the molecules on the surface and the oxygen molecules in the air increases.
In the presence of a spark or flame, these molecular collisions become combustion reactions occuring at an increasingly rapid rate. Heat is released, triggering an increase in the volume of gases being formed, creating a shock wave. When the dust particles are suspended in air they can explode in the presence of an ignition source, such as a welding spark.
This process caused the catastrophic industrial plant explosion at the Imperial Sugar plant – a small spark or flame from plant machinery caused the explosions which instantly ignited and engulfed the plant. As the explosion rocked the plant and fire tore the plant to smithereens, accumulated sugar dust was tossed into the air further fuelling a series of explosions.
Further dust explosion hazards in the food processing industry include whole grains such as: maize, barley, wheat, oats, rye, soya beans, sorghum (milo). Flour, custard powder, instant coffee, sugar, dried milk, potato powder and soup powder also pose dust explosion risks in hazardous area locations.
Other industrial potential explosive dust atmospheres also include coal, metals, plastics and wood.
Rotronic hazardous area certified transmitters and instruments are for safe use in potentially explosive atmospheres, including both gases and dusts.
Rotronic HygroFlex5-EX temperature and humidity sensor is suitable for harsh but not hazardous area applications – due to being un-certified the sensor is therefore suitable for “safe” working areas. The stainless steel probe selected for the application from the Rotronic range available is rapidly interchangeable, no calibration adjustment required.
Rotronic HygroFlex5-EX – Hazardous Area Temperature Measurement ATEX Zone 1.
Rotronic Hygroflex5-EX
Rotronic HygroFlex5-EX measurement device is the latest development in two-channel transmitters for the exact measurement of humidity and temperature in hazardous area industries with explosive atmospheres. Rotronic HygroFlex5-EX device conforms to the latest international standards.
Rotronic HF5-EX series consists of a robust aluminium transmitter with or without display. The attached probes are cast into a stainless steel tube and are certified for operation in hazardous area Zone 0/20 – the transmitter itself is certified for hazardous area Zone 1/21.
The intelligent design of the circuitry with electrical isolation permits the measuring system to be operated without an intrinsically safe power supply.
Rotronic HF5 sensor is compatible with HygroClip2 probes with integrated AirChip3000 technology, which achieves an unparalleled degree of accuracy.
In combination with advances in sensor technology and integration, the Rotronic HygroFlex HF52, HF53, HF54, HF55 and HF56 transmitters combined with a HC2-S probe provide precision and functionality through accurate humidity and temperature measurement of <0.8% rh and <0.1K at 23°C.
Rotronic HF5 Features:
Pharmaceutical plant and process managers must implement control and measurement for relative humidity and “out-of-control” ambient temperatures. Humidity levels must be controlled and monitored using precision instruments where the pills are coated, stored and conditioned before packaging and despatch.
Rotronic Humidity Measurement – Pharmaceutical Industry
T&D UK are authorised distributors for Rotronic’s humidity measurement and temperature measurement instruments.
Rotronic – The Measurement Specialists
Rotronic manufacture devices, sensors and instruments for high precision measurement of Temperature, Humidity and Carbon Dioxide (CO2).
Thorne & Derrick are inviting you to join LinkedIn’s fastest growing Discussion Group – Process & Hazardous Area Industries : Heat Tracing, Gas Detection, Fluid Control & Flow Measurement. News, projects, videos, promotions, whitepapers, jobs, webinars, press plus much more.
ASCO Valves
By Chris Dodds : estimated reading time 2 minutes
ASCO have extended their range of 262, 263 and 314 series direct acting solenoid valves with several new valve options. By adding these options, T&D and ASCO will be able to streamline our valve product offering from five series to three, simplifying the solenoid valve selection process.
The new solenoid valve options are used within special service applications for oxygen, vacuum, steam, cryogenic, EN 161 gas approval plus the addition of a series ASCO 314 with a 1/8″ port size.
These direct acting solenoid valves are a general purpose product and can be used within many different industries and applications. Typical applications include vacuum forming, medical gases, valve piloting, general fluid control etc.
T&D can supply ASCO 262, 263 and 314 solenoid valves via ASCO Express on short lead times with the exception of the 1/8″ 314 series which will be made to order – contact T&D Sales for lead time and quotation. ASCO datasheets can be found below with all of the relevant information about these solenoid valves.
Via ASCO Numatics FASTSHIP and SAMEDAY Express Delivery Service we are able to deliver 2,000+ ASCO valves from stock direct to you.
Further ASCO Information
Visit: Solenoid Valves
ASCO Valves – Selecting & Ordering The Correct Solenoid Valve
ATEX Solenoid Valves – Hazardous Area Solenoid Valves
ASCO Valves From T&D – UK Suppliers Of Solenoid Valves From Stock
Thorne & Derrick are inviting you to join LinkedIn’s fastest growing Discussion Group – Process & Hazardous Area Industries : Heat Tracing, Gas Detection, Fluid Control & Flow Measurement. News, projects, videos, promotions, whitepapers, jobs, webinars, press plus much more.
Electrical & Process Instrumentation Equipment for Explosive Atmospheres
Thorne & Derrick are Specialist Distributors of Hazardous Area & Explosion Proof Equipment with IECEx & ATEX Certifications to the onshore and offshore oil, gas, petrochemicals and process industries.
We supply major UK and international infrastructure projects and also MRO (Maintenance, Repair, Operations) requirements for both planned and unplanned plant shutdowns – we react with a rapid response to customer demand to ensure downtime is minimised and reliable Power, Light & Heat is restored or provided.
Working closely with clients and our supply chain we can assess the condition and degradation of your hazardous area installations and implement specifications to manage the planned replacement of legacy equipment conformant with international classifications including ATEX and IECEx.
Key Product Categories: Control Panels | Plugs & Sockets | Isolators | Enclosures & Junction Boxes | Lighting | Control Stations | Motor Starters | Heat Trace Cables & Systems | Gas Detection & Detectors | Fire Detection & Detectors | Heat Detectors | Electrical Heating & Heaters
➡ Also Process Instrumentation Products: Ashcroft Pressure Gauges | ASCO Valves | Katronic Flow Meters | KROHNE Flow Meters | VEGA Level Sensors | Rotronic Temperature & Humidity Sensors | SIKA Pressure Gauges
Explosion Protection (ATEX) & Functional Safety (SIL) Training Seminar By Pepperl + Fuchs, The Process Automation Specialists
Thorne & Derrick, The Explosive Atmosphere Experts, have registered to attend the latest Pepperl + Fuchs training seminar – as specialist 
distributors of Electrical, Mechanical, Process & Instrumentation Equipment to the hazardous area industries our Sales Engineers are committed to providing the highest levels of customer service.
We deliver this commitment through a thorough understanding of hazardous area classifications, explosion protection methods, legislation compliance and the relationships between electrical equipment, gas groups and temperature classes.
We recommend our clients, suppliers and supporters consider registering their attendance to this excellent “up-skilling” opportunity provided by Pepperl + Fuchs, The Process Automation Specialists.
Process Automation
ATEX
1. Physical Basics
2. Legal Basics
3. Types of Protection – Gas
4. Intrinsic Safety
5. Dust Explosion Protection
1. Introduction
2. Risk Analysis
3. Failure performance of equipment
4. Avoidance of (systematic) failures
5. Control of (unavoidable (?) and random)) failures
6. Proven in use
7. Implementation of protective equipment
Please see the booking form PDF attached below.
BOOKING FORM – Complete for ALL seminars
We have curated a collection of our favourite Pepperl + Fuchs #AUTOMATION tweets – for more go to Twitter and Follow @PepperlFuchs
Pepperl+Fuchs are leading suppliers of automation equipment for hazardous areas and process automation industries – the Pepperl + Fuchs product ranges includes intrinsic safety isolators, Zener barriers, signal conditioners, fieldbus technology, Remote I/O, HART interfaces, level measurement, purge and pressurization systems, Human Machine Interfaces (HMI) for hazardous environments, custom cabinets, and junction boxes.
Explosion Proof Electrical Enclosures & Control Stations – Ex e, Ex ia, Ex e Hazardous Areas
Thorne & Derrick are inviting you to join LinkedIn’s fastest growing Discussion Group – Process & Hazardous Area Industries : Heat Tracing, Gas Detection, Fluid Control & Flow Measurement. News, projects, videos, promotions, whitepapers, jobs, webinars, press plus much more.
Thorne & Derrick, The Explosive Atmosphere Experts, distribute products to provide safe Heat, Light & Power to hazardous area locations.
In this post we shall outline the scope of our hazardous area certified Electrical, Process Control & Instrumentation products suitable for offshore HVAC systems and temporary accommodation modules.
We consult with our clients to supply explosion-proof Heat, Light & Power solutions for offshore vessels – this includes FPSO, Gas Production Platforms, Jack Up Units, Drilling Rigs, Cable Laying Vessels and Offshore High Voltage Stations.
HVAC and Power systems must handle harsh weather, turbulent waves, explosive atmospheres, extreme temperatures, seawater splash and hydrocarbon exposure – the hazardous area certified equipment supplied by T&D ensures safe and reliable service to compressor halls, switchboard rooms, instrument rooms, battery rooms, transformer rooms and low voltage/high voltage electrical distribution rooms.
T&D can meet the certification challenges posed by hazardous area locations by ensuring all heating, lighting and power distribution equipment is safe for use in potentially explosive atmospheres – we are experienced in servicing offshore accommodation and workspace modules with ATEX and IECEx approved equipment.
T&D are Main Stockists and Distributors for EXHEAT – we hold extensive stocks of EXHEAT FAW 240/425v, single phase, 1kW-3kW hazardous area air warmers with T class rating, T3.
EXHEAT FAW heaters provide comfortable working conditions in hazardous areas where the potentially explosive atmosphere is classified as a Zone 1 or Zone 2 (IIA, IIB, IIC) gas group.
Hazardous area room thermostats provide frost protection and condensation prevention and Zone 1 and Zone 2 anti-condensation space heaters are also available.
EXHEAT HEF hazardous area anti-condensation and space heaters provide frost protection and condensation prevention and Zone 1 and Zone 2 applications. Hazardous area (flameproof) room thermostats are available but not for use with anti-condensation heaters as these are self-regulating type.
For non-hazardous area, safe location heating we stock industrial convector heaters suitable for floor or wall mounting with optional adjustable 0- 40°C room temperature controlled thermostat.
Hazardous Area Room Flameproof Thermostats – EXHEAT HFT / AFT / RFT thermostats are certified according to ATEX & IECEx where a potentially explosive atmosphere is designated as a Zone 1 or Zone 2 (IIA, IIB, IIC) gas group
Whether the hazardous area classification is Flameproof Ex d and Increased Safety Ex e we can provide explosion-proof heating equipment for safe operation according to ATEX and IECEx certification with suitable T-Class Rating and Gas Groups compatibility.
II 2 G/D II 2 G
EXHEAT Hazardous Area Heaters – Zone 1 & Zone 2 Offshore Heating
Marechal Electric are world leading manufacturers of industrial and Ex hazardous area plugs and sockets: the explosion-proof Marechal DXN Decontactor range of compact and watertight connectors are rated for operation up to 63A with integrated load-break switch.
Marechal DXN hazardous area plugs and sockets with ATEX certification are rated from 20-63amps, IP66/67 watertight ingress protected and with 
socket-outlet safety shutter providing IP4X protection.
T&D can assist with the specification and supply of all power distribution requirements for Zones 1 & 2 (Gas) and Zones 21 & 22 (Dust) – we are Approved Distributors for Marechal and our trained sales engineers are available to discuss your requirements.
Petrel are leading manufacturers of hazardous area lighting and control equipment for use in potentially explosive atmospheres – safe, reliable, high quality lighting certified by ATEX and IECEx. T&D are Approved Distributors for Petrel lighting providing reduced maintenance and higher light levels for explosive atmospheres.
➡ More Info: Hazardous Area Lighting Zone 1 and Hazardous Area Lighting Zone 2
T&D also distribute H2S gas detectors to check and monitor atmospheric presence of flammable and toxic gases including hydrogen sulphide (H2S) and toxic sour gas mixtures to guarantee safety of maintenance crews and workers.
T&D Distribute Crowcon Gas Detectors
H2S gas can be expected in all areas of the offshore rig where drilling fluid and associated equipment is located – rig floors, substructures, shale shakers, mud cleaners, mud pit rooms, mud pump rooms and well test equipment.
Being heavier than air, H2S will settle in low-lying and poorly ventilated areas and will dissolve in oil and water present in those areas.
The primary route of H2S gas exposure is by inhalation – in gas concentrations less than or around 50 parts per million (ppm), H2S acts as a mucous membrane and respiratory tract irritant; symptoms include coughing, shortness of breath, eye and throat irritation.
At concentrations of approximately 100 ppm, H2S paralyses the olfactory nerve and the sense of smell – the toxic gas is rapidly absorbed by the lungs and transferred to the blood circulation, where it inhibits the cytochrome oxidase enzyme system, which regulates the uptake of oxygen at the cellular level.
T&D are Explosive Atmosphere specialists distributing Process & Instrumentation Equipment to the hazardous area industries where ATEX & IECEx certified equipment is required (Class/Division/Zones 1 & Zone 2).
Hazardous Area Process Instrumentation – contact us to discuss your requirements
See Infographic for further details of how T&D support the international oil and gas industry.
Ecom Instruments are world-leading manufacturers of ATEX certified hazardous area mobile phones, laptops and tablets for use in explosion protected areas, including hazardous areas Zone 1 and Zone 2 – contact T&D to discuss your mobile communication requirements.
T&D UK & International: Project Suppliers To The Onshore & Offshore Oil, Gas, Petrochem & Hazardous Area Industries.
Thorne & Derrick are inviting you to join LinkedIn’s fastest growing Discussion Group – Process & Hazardous Area Industries : Heat Tracing, Gas Detection, Fluid Control & Flow Measurement. News, projects, videos, promotions, whitepapers, jobs, webinars, press plus much more.
ABOUT US
Thorne & Derrick International are your single-source supplier of Electrical, Mechanical, Process & Instrumentation Equipment. T&D provide an outstanding service to UK and international customers – we are highly customer responsive and absolutely committed to providing a world-class service.
T&D supply utilities, power, renewable energy, construction, rail, manufacturing, food/beverage, mining, oil, gas and petrochemical industries – distributing 100,000+ products from 100+ manufacturers from multi-million pound stocks. Since 1985 we have established a solid reputation based on service, integrity and trust.
Published 13 Mar 2020
Press Release Date: 02.04.2020 uploaded by Chris Dodds (T&D Sales + Marketing Manager) World’s First Fully Certified ATEX Doors Thorne & Derrick International, the Experts in Equipment for Explosive Atmospheres, today announce the signing of a Commercial Distribution Agreement...
Published 04 Jul 2019
Press Release Date: 04.07.2019 uploaded by Chris Dodds (T&D Sales + Marketing Manager) Category: Stockist Distributor Agreement Announcement Thorne & Derrick International announce that they have signed a Preferred Distributor Agreement with Raytec, the world leading manufacturer of LED...
