EXHEAT | Hazardous Area Heaters
IECEx & ATEX Certified Electric Heaters for Explosive Atmospheres
EXHEAT is a globally renowned manufacturer of hazardous area electric process heating and control systems – Thorne & Derrick, Experts in Equipment for Explosive Atmospheres, are the largest stockist and supplier of EXHEAT heaters in the UK including ATEX and IECEx certified electrical heating products.
EXHEAT experience in producing heaters suitable for use within hazardous areas and their range of custom made heaters means EXHEAT and Thorne & Derrick can provide a heating solution for almost any situation. The range of process heaters and industrial heaters are designed and manufactured in the UK and with over 20 years experience the highest quality product is guaranteed.
EXHEAT Industrial offers fast-track solutions suited to the diverse requirements of the industrial sector, providing a wide-range of pre-engineered electrical heating systems for explosive atmospheres including:
Should you require any customer support or service to enable the selection or specification of the correct electric heater for use in explosive atmospheres please do not hesitate to contact us.
World’s First Portable Hazardous Area Fan Assisted Heater | EXHEAT MFH “The Bulldog” Portable Fan Heater – an electric heating solution for use in hazardous area environments where the explosive atmosphere is classified as Zone 1/2 Gas (IIB+H2) or Zone 21/22 Dust (IIIC). The heater is compact, lightweight and powerful (up to 6kW).
EXHEAT Heaters Typical Hazardous Area Heating Applications
EXHEAT process heaters and electrical control systems provide hazardous area, intrinsically safe heating for Zone 1/21 and Zone 2/22 gas and dust explosive atmospheres. The range includes in-line, air, fan, immersion and water heaters for use in both onshore and offshore applications. Process heaters are designed for common applications such as space heating and water heating and the range of heaters use an element that convert electrical current into heat.
The range of electric heaters are suitable for use in the most challenging conditions from highly corrosive environments required the correct material properties to desert conditions where both high and low ambient temperatures must be taking into consideration.
T&D UK & Exports support worldwide oil, gas and petrochemical projects with an extensive range of Hazardous Area Electrical, Mechanical, Process & Instrumentation Equipment.
Efficiency – Almost all of the electricity used by the heaters is turned directly into heat removing the need for tuning or additional heating.
Precision – With direct heating solutions there are extremely fast reaction times and superior temperature control giving the flexibility to deal with varying process conditions.
Environmental – Electrical process heaters do not produce pollutants as a by-product and avoids the monitoring and control measures necessary to meet environmental regulations. In addition, with very few moving parts, there is no concern surrounding noise pollution.
Product Size & Dimensions – Electrical heaters boast a small footprint and remove the need for additional pipes or supports, therefore saving space.
Costs – Being smaller in size, the initial costs are automatically lower and the near 100% efficiency levels means the ongoing costs are also minimal.
Installation & Maintenance – Electrical heaters are extremely simple to install and with minimal moving parts require very little maintenance.
ATEX Certified Electrical Heating Equipment for Hazardous Areas
Hazardous Area Electrical Heaters | International Certifications
EXHEAT FWD flameproof hazardous area flameproof air heaters are designed specifically for use in small spaces, work and storage areas and are certified for use in Zone 1 and Zone 2 gas groups or Zone 21 and Zone 22 dust groups.
EXHEAT FWD air heater is manufactured from a fabricated carbon steel enclosure and is weatherproof to IP66. The hazardous area heater is available is temperature classes T2, T3 and T4 and is suitable for floor or wall mounting.
There are many applications and industries where the EXHEAT FWD would be suitable for use including gas installations, chemical plants, offshore installations, battery stores, paint/solvent stores, sugar refineries and dusty environments. The individually replaceable heating elements make any required maintenance extremely simple and quick.
FWD flameproof heater is rated between 500W – 2kW and comes with 2 x 20mm plugged cable entries as standard. If required the heater can be controlled remotely with an EXHEAT hazardous area thermostat.
EXHEAT FWD flameproof heater suitable for use in hazardous areas and explosive gas atmospheres Zone 1 & Zone 2 according to ATEX Directive – where the atmosphere is classified as a Zone 1 or 2 (IIA, IIB, IIC) gas group, or a Zone 21 or 22 (IIIA, IIIB, IIIC) dust group.
Hazardous areas are classified into zones based on an assessment of the frequency of the occurrence and duration of an explosive gas atmosphere as follows:
Various sources have tried to place time limits on to these hazardous area zones, but none have been officially adopted. The most common values used are:
EXHEAT heaters have been manufactured and certified by international classifications to be suitable for use in both Zone 1 and Zone 2 explosive gas atmospheres and hazardous areas.
EXHEAT hazardous area and process heaters are used throughout many industries over varying applications.
Typical industries served include:
Throughout these hazardous area industries there are many applications that are currently using electrical heaters including fuel gas, glycol regeneration, crude oil, oxygen, process gas, heat transfer fluids, HVAC and hot water calorifiers.
When working in hazardous areas and potentially explosive atmospheres, it is absolutely imperative that explosion proof and resistant equipment is used and only heaters that are certified to the applicable international standards are used in order to prevent a serious incident such as an explosion from occurring.
Hazardous Area Electrical Heating | EXHEAT
For over 20 years EXHEAT have been designing and manufacturing the highest quality electrical process heaters and control systems. The company sets its mission statement as “To lead the global hazardous area electric heaters and control systems industry”.
In order to try and achieve this aim, EXHEAT have their core focus on five key points:
EXHEAT’s manufacturing techniques meet the highest requirements, design codes, international standards and client specifications. Their design processes enable EXHEAT to provide heating solutions for the most extreme applications from cryogenic service to gas regeneration.
Integrity | Knowledge | Reliability | Electrical HVAC Process Instrumentation Equipment
Thorne & Derrick are leaders in the development and distribution of ATEX & IECEx 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.
Panels | Plugs | Isolators | Enclosures | Lighting | Control Stations | Motor Starters | Heat Trace | Gas Detection | Flame Detection | Process Instrumentation | Process Heating | Fans | Security Locking & Access Control
Competitive Prices | Extensive Stocks | Technical Support | Express Delivery
ASCO Valves – Solenoid Valves
ASCO Numatics are world leading manufacturers of solenoid valves designed to control the flow of air, gas, water, oil or steam.
T&D distribute the most extensive range of ASCO valves including general service and hazardous area solenoid valves (2-way, 3-way and 4-way) to handle flow control of liquids, gases and oil in both onshore and offshore installations.
T&D International are Main UK Distributors for ASCO Valves
ASCO solenoid valves are electronic devices used to provide precise flow control and are operated by opening and closing an orifice in the valve body that permits or prevents flow through the valve.
The orifice is operated through the use of a plunger that is raised or lowered within a sleeve tube by energizing the solenoid coil. The solenoid comprises a coil, core, core tube and enclosure. Key valve selection factors include voltage, valve type, flow capacity, pressure rating, wattage and connection type.
ASCO offers the worlds largest selection of 2-way, 3-way and 4-way solenoid valves, designed to handle the most demanding fluid control applications. ASCO 327 solenoid valves are ATEX and IECEx certified for hazardous areas in the oil, gas and petrochemical industries.
ASCO valve product range also includes cylinders, angle body piston valves, regulators, valve manifolds, filters, lubricators and valve accessories.
ASCO Valves & Cylinders – 2000+ Products, Same Day Shipping
T&D Sales Team aim to respond to all UK and international enquiries with a competitive ASCO quotation within 24 hours.
T&D – Leading UK Process Instrumentation Equipment Distributor – Shipping Worldwide
ATEX Solenoid Valves
T&D are distributors of the full range of ASCO hazardous area solenoid valves including explosion proof valve operators for installation in numerous Class/Division and Zone classified locations according to ATEX and NEC – for valve selection advice to conform to NEC (Class/Division) standard and IEC (Zone), NEC (Class/Zone) and ATEX (Zone 1 & Zone 2) please contact T&D.
The range of ASCO solenoid valves offers the most reliable and efficient fluid control with fluid automation products designed for many different industries including Ex d flameproof requirements.
The full product line includes over 50,000 solenoid valves and an extensive range of air preparation and control equipment. These products range from two position on/off valves to entire flow control solutions designed to meet requirements of thousands of customers.
ASCO manufacture ATEX valves certified for use in Zone 1 and Zone 2 hazardous areas.
Valves available include:
➡ Read Blog: ATEX Solenoid Valves – ASCO Valves for International Hazardous Area Installations
Thousands of solenoid valves with global approvals including ATEX, IECEx, INMETRO, NEPSI, and GOST for hazardous areas and explosive atmospheres.
SIL 3 Capable Valves
Functional Safety standards set the process and hazardous area industries guidelines for safe and reliable operation.
Certified SIL 3 spool valves and pilot valves are IEC 61508 Parts 1 and 2 rated with SIL 3 capability for domestic and international markets (ATEX).
What Is SIL?
Safety Integrity Level (SIL) is defined as a relative level of risk-reduction provided by a safety function, or to specify a target level of risk reduction.
IEC introduced the following standards to assist operators with quantifying the safety performance requirements for hazardous area locations and operations:
Systems comprised of electrical and/or electronic elements have been used for many years to perform safety functions.
ASCO RedHat Solenoid Valves – the worlds largest selection of 2-way, 3-way and 4-way valves for fuel, oil and gas.
ASCO RedHat solenoid valves handle the most demanding fluid control applications including fuel, gas and oil. Specialist solenoid valves are available to control compressed natural gas for automotive and rail transportation applications.
ASCO 2-Way Solenoid Valves have one inlet and one outlet and are used to permit and shut off fluid flow. The two types of operations are “Normally Closed” and “Normally Open”.
ASCO 3-Way Solenoid Valves have three pipe connections and two orifices. When one orifice is open, the other is closed and vice versa. 3-way solenoid valves are commonly used to alternately apply pressure to and exhaust pressure from a valve actuator or a single acting cylinder. RedHat valves can be normally closed, normally open or universal.
ASCO 4-Way Solenoid Valves have four or five pipe connections, commonly called ports. One pressure inlet, two cylinder ports providing pressure to double acting cylinder or actuator, and one or two outlets to exhaust pressure from the cylinders.
ASCO 327 valves are certified to IEC 61508 Functional Safety data with SIL-3 capability (Exida approval).
ASCO 327 valves feature a compact tamperproof and manual reset function which means that the valve must be energized as well as manually operated before it stays in the “latched” position.
The No Voltage Release (NVR) function will make sure that the solenoid valve trips when de-energized. The range of 327 valves are recommended for pilot applications with basic flow, wide pressure ranges and no minimum operating pressure in hazardous areas.
ATEX Directive compliance is mandatory for solenoid valves used in hazardous areas with potentially explosive gas or dust atmospheres.
ASCO 327 Series Solenoid Valves – a universal, direct acting solenoid valve available in multiple variations of materials, power, flow and certification including ATEX, IECEx, CU TR and INMETRO hazardous area approvals. Corrosion resistant and NACE compliant valve to suit a NACE atmosphere (including solenoid housing internals).
ASCO – Hazardous Area Solenoid Valves With ATEX & IECEx Certification
ASCO 551 solenoid valves are spool type explosion proof valves for installation in Zone 1 (21) and Zone 2 (22) hazardous areas according to ATEX Directive. Solenoid valves with ATEX and IECEx certification have threaded port connections and NAMUR interface. Solenoid valves are of non breathing design. The pilot exhaust is collected in the main valve exhaust for dust and water protection.
Valve actuator and pilot valve are isolated from the main environment.
ASCO 362 and 562 series valves are available in brass and 316L stainless steel constructions with pneumatic and solenoid models for corrosion resistance in harsh, hazardous and offshore environments.
The new valves utilize ASCO’s proven solenoid technology, which has led the industry in reliability for decades with the highest-quality, longest lifecycles, and greatest product availability in the world.
ASCO 362 Series is a three-way valve made for single-acting process valve applications. The ASCO 562 Series is a four-way spool valve designed for double-acting process valves – valves are available in 1/4″, 3/8″, 1/2″, 3/4″ and 1″ sizes.
ASCO Valves: Highest Flow Rates, Low Power Consumption.
ASCO research and manufacture many different valves for industries globally and are committed to supplying reliable flow control, cylinders and actuation products to industries that deliver the highest quality and most efficient products.
Typical industries using ASCO solenoid valves include hazardous areas, refining, automotive, kitchen, heating, waste-water, bottling, manufacturing, dust collection, food & beverage and wine making.
The range of solenoid valves available covers all installations and when combined with the expertise available from ASCO and T&D, these solutions provide lower cost of ownership, greater asset availability and improved productivity.
Solenoid valves are often used to replace a manual valve or where a remote control device is not desirable. The operating limits of ASCO solenoid valves depends upon the individual valve however they can range from 115 psi up to 575 psi.
Pilot operated valves have a minimum operating pressure requirement of 25-45 psi depending on the valve. Some of the pilot operated solenoid valves can be externally piloted if the minimum pressure requirements cannot be met.
Within each industry sector using solenoid valves, there are thousands of different applications – within the wastewater industry, solenoid valves are used in applications including air flow, filters, water seals, reservoir pumps and chemicals.
ASCO manufacture the industry’s most extensive selection of shut-off valves designed to control the flow of fuel gas, liquid propane and all grades of fuel oil used in combustion applications – these products include modular gas shut-off valves, solenoid and motorized valves.
A comprehensive portfolio of 3-way and 4-way pilot valves to drive actuators and process valves in the most demanding applications. These ultra-reliable products include low-power constructions, corrosion resistant 316 stainless steel materials, low temperature ratings and SIL ratings for safety systems with global approvals.
The Express Same Day service offers quick delivery on a variety of valves and cylinders – call T&D with your purchase requirements. Via FASTSHIP and SAMEDAY Express Delivery Service we are able to deliver 2000+ valves from stock direct to you.
Established in 1888 manufacturing elevator, compressor and generator controls, ASCO became the first company to manufacturer an electronically operated control device known as a solenoid valve.
ASCO has continued its development and today manufactures products that are designed to control the flow of air, gas, water, oil and steam – every kind of liquid or gaseous substance.
ASCO Numatics manufacture over 50,000 solenoid valves – the worldwide leader in the manufacture of quality fluid control products such as RedHat solenoid valves, hazardous area valves, miniature valves and fuel gas and oil products with ATEX and IECEx certification for hazardous area industries.
Their heritage of innovation has resulted in an extensive line of flow control products that range from two position on/off valves to entire flow control solutions.
A fully assembled and tested system for controlling pneumatic actuators – contact T&D for further information.
ASCO manufacture the world’s most reliable fluid control solutions — delivered and serviced with exceptional speed and customer support.
Since 1985 T&D have serviced the UK and world markets with an extensive range of Electrical, Mechanical, Process & Instrumentation Equipment – our Export Department is staffed by a team of professional sales engineers, sourcing specialists, expeditors and customer service advisors.
T&D global project experience has enabled us to build a solid reputation for the reliable supply of brand leaders – we consolidate your supply chain by providing single-source logistics to any international destination.
See how Thorne & Derrick service and support our key global markets and hazardous area industries in the following SlideShelf of Industry Infographics.
Integrity, Values & Trust. T&D are a world-class business committed to ensuring the correct installation and application of all products we distribute. Where applicable installer training and support services including site surveys can be made available.
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